JQueryStatic | FORMCYCLE 7.0.5 - JavaScript for forms

Hierarchy

JQueryStatic

Callable

__call(window: Window, discriminator: boolean): JQueryStatic
__call<TElement>(html: htmlString, ownerDocument_attributes?: Document | PlainObject): JQuery<TElement>
__call<TElement>(selector: Selector, context?: Element | Document | JQuery | Selector): JQuery<TElement>
__call(element: HTMLSelectElement): JQuery<HTMLSelectElement>
__call<T>(element_elementArray: T | ArrayLike<T>): JQuery<T>
__call<T>(selection: JQuery<T>): JQuery<T>
__call<TElement>(callback: function): JQuery<TElement>
__call<T>(object: T): JQuery<T>
__call<TElement>(): JQuery<TElement>

Parameters
- window: Window
- discriminator: boolean
Returns JQueryStatic
Creates DOM elements on the fly from the provided string of raw HTML.
see

``

since

1.0

since

1.4

example
````Create a div element (and all of its contents) dynamically and append it to the body element. Internally, an element is created and its innerHTML property set to the given markup.
```
$( "<div><p>Hello</p></div>" ).appendTo( "body" )
```
example
````Create some DOM elements.
```
$( "<div/>", {
"class": "test",
text: "Click me!",
click: function() {
$( this ).toggleClass( "test" );
}
})
.appendTo( "body" );
```
Type parameters
- TElement: HTMLElement
Parameters
- html: htmlString
  @param html
  - html (ownerDocument) — A string of HTML to create on the fly. Note that this parses HTML, not XML.
  - html (attributes) — A string defining a single, standalone, HTML element (e.g. <div/> or <div></div>).
- Optional ownerDocument_attributes: Document | PlainObject
  @param ownerDocument_attributes
  - ownerDocument — A document in which the new elements will be created.
  - attributes — An object of attributes, events, and methods to call on the newly-created element.
Returns JQuery<TElement>
Accepts a string containing a CSS selector which is then used to match a set of elements.
see

``

since

1.0

example
````Find all p elements that are children of a div element and apply a border to them.
```
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery demo</title>
<script src="https://code.jquery.com/jquery-3.3.1.js"></script>
</head>
<body>

<p>one</p>
<div><p>two</p></div>
<p>three</p>

<script>
$( "div > p" ).css( "border", "1px solid gray" );
</script>
</body>
</html>
```
example
````Find all inputs of type radio within the first form in the document.
```
$( "input:radio", document.forms[ 0 ] );
```
example
````Find all div elements within an XML document from an Ajax response.
```
$( "div", xml.responseXML );
```
Type parameters
- TElement: Element
Parameters
- selector: Selector
  
  A string containing a selector expression
- Optional context: Element | Document | JQuery | Selector
  
  A DOM Element, Document, Selector or jQuery to use as context
Returns JQuery<TElement>
Return a collection of matched elements either found in the DOM based on passed argument(s) or created by passing an HTML string.
see

``

since

1.0

example
````Set the background color of the page to black.
```
$( document.body ).css( "background", "black" );
```
Parameters
- element: HTMLSelectElement
  
  A DOM element to wrap in a jQuery object.
Returns JQuery<HTMLSelectElement>
Return a collection of matched elements either found in the DOM based on passed argument(s) or created by passing an HTML string.
see

``

since

1.0

example
````Set the background color of the page to black.
```
$( document.body ).css( "background", "black" );
```
example
````Hide all the input elements within a form.
```
$( myForm.elements ).hide();
```
Type parameters
- T: Element
Parameters
- element_elementArray: T | ArrayLike<T>
  @param element_elementArray
  - element — A DOM element to wrap in a jQuery object.
  - elementArray — An array containing a set of DOM elements to wrap in a jQuery object.
Returns JQuery<T>
Return a collection of matched elements either found in the DOM based on passed argument(s) or created by passing an HTML string.

see

``

since

1.0

Type parameters
- T
Parameters
- selection: JQuery<T>
  
  An existing jQuery object to clone.
Returns JQuery<T>
Binds a function to be executed when the DOM has finished loading.
see

``

since

1.0

example
````Execute the function when the DOM is ready to be used.
```
$(function() {
// Document is ready
});
```
example
````Use both the shortcut for $(document).ready() and the argument to write failsafe jQuery code using the $ alias, without relying on the global alias.
```
jQuery(function( $ ) {
// Your code using failsafe $ alias here...
});
```
Type parameters
- TElement
Parameters
- callback: function
  
  The function to execute when the DOM is ready.
  - - (this: Document, $: JQueryStatic): void
    - Parameters
      - this: Document
      - $: JQueryStatic
      Returns void
Returns JQuery<TElement>
Return a collection of matched elements either found in the DOM based on passed argument(s) or created by passing an HTML string.

see

``

since

1.0

Type parameters
- T: PlainObject
Parameters
- object: T
  
  A plain object to wrap in a jQuery object.
Returns JQuery<T>
Returns an empty jQuery set.

see

``

since

1.4

Type parameters
- TElement
Returns JQuery<TElement>

Index

Properties

Methods

Properties

ajaxSettings

ajaxSettings: AjaxSettings

see: ``
deprecated: Deprecated. Use ``.

cssHooks

cssHooks: CSSHooks

Hook directly into jQuery to override how particular CSS properties are retrieved or set, normalize CSS property naming, or create custom properties.

see: ``
since: 1.4.3

cssNumber

cssNumber: PlainObject<boolean>

An object containing all CSS properties that may be used without a unit. The .css() method uses this object to see if it may append px to unitless values.

see: ``
since: 1.4.3

easing

easing: Easings

event

event: EventExtensions

see: ``

expr

expr: Selectors

fn

fn: JQuery

fx

fx: Effects

ready

ready: Thenable<JQueryStatic>

A Promise-like object (or "thenable") that resolves when the document is ready.

see

since

1.8

example

````Listen for document ready using jQuery.when.

$.when( $.ready ).then(function() {
// Document is ready.
});

example

````Typical usage involving another promise, using jQuery.when.

$.when(
$.getJSON( "ajax/test.json" ),
$.ready
).done(function( data ) {
// Document is ready.
// Value of test.json is passed as `data`.
});

support

support: PlainObject

A collection of properties that represent the presence of different browser features or bugs. Intended for jQuery's internal use; specific properties may be removed when they are no longer needed internally to improve page startup performance. For your own project's feature-detection needs, we strongly recommend the use of an external library such as Modernizr instead of dependency on properties in jQuery.support.

see: ``
since: 1.3
deprecated: Deprecated since 1.9. See ``.

timers

timers: Array<TickFunction<any>>

valHooks

valHooks: ValHooks

Methods

ajax

ajax(url: string, settings?: AjaxSettings): jqXHR
ajax(settings?: AjaxSettings): jqXHR

Perform an asynchronous HTTP (Ajax) request.

see

``

since

1.5

Parameters
- url: string
  
  A string containing the URL to which the request is sent.
- Optional settings: AjaxSettings
  
  A set of key/value pairs that configure the Ajax request. All settings are optional. A default can be set for any option with $.ajaxSetup(). See jQuery.ajax( settings ) below for a complete list of all settings.
Returns jqXHR

Perform an asynchronous HTTP (Ajax) request.

see

since

1.0

example

````Save some data to the server and notify the user once it's complete.

$.ajax({
method: "POST",
url: "some.php",
data: { name: "John", location: "Boston" }
})
.done(function( msg ) {
alert( "Data Saved: " + msg );
});

example

````Retrieve the latest version of an HTML page.

$.ajax({
url: "test.html",
cache: false
})
.done(function( html ) {
$( "#results" ).append( html );
});

example

````Send an xml document as data to the server. By setting the processData option to false, the automatic conversion of data to strings is prevented.

var xmlDocument = [create xml document];
var xmlRequest = $.ajax({
url: "page.php",
processData: false,
data: xmlDocument
});

xmlRequest.done( handleResponse );

example

````Send an id as data to the server, save some data to the server, and notify the user once it's complete. If the request fails, alert the user.

var menuId = $( "ul.nav" ).first().attr( "id" );
var request = $.ajax({
url: "script.php",
method: "POST",
data: { id : menuId },
dataType: "html"
});

request.done(function( msg ) {
$( "#log" ).html( msg );
});

request.fail(function( jqXHR, textStatus ) {
alert( "Request failed: " + textStatus );
});

example

````Load and execute a JavaScript file.

$.ajax({
method: "GET",
url: "test.js",
dataType: "script"
});

Parameters

Optional settings: AjaxSettings

A set of key/value pairs that configure the Ajax request. All settings are optional. A default can be set for any option with $.ajaxSetup().

Returns jqXHR

ajaxPrefilter

ajaxPrefilter(dataTypes: string, handler: function): void
ajaxPrefilter(handler: function): void

Handle custom Ajax options or modify existing options before each request is sent and before they are processed by $.ajax().

see

``

since

1.5

Parameters
- dataTypes: string
  
  An optional string containing one or more space-separated dataTypes
- handler: function
  
  A handler to set default values for future Ajax requests.
  - - (options: AjaxSettings, originalOptions: AjaxSettings, jqXHR: jqXHR): string | void
    - Parameters
      - options: AjaxSettings
      - originalOptions: AjaxSettings
      - jqXHR: jqXHR
      Returns string | void
Returns void
Handle custom Ajax options or modify existing options before each request is sent and before they are processed by $.ajax().

see

``

since

1.5

Parameters
- handler: function
  
  A handler to set default values for future Ajax requests.
  - - (options: AjaxSettings, originalOptions: AjaxSettings, jqXHR: jqXHR): string | void
    - Parameters
      - options: AjaxSettings
      - originalOptions: AjaxSettings
      - jqXHR: jqXHR
      Returns string | void
Returns void

ajaxSetup

ajaxSetup(options: AjaxSettings): AjaxSettings

Set default values for future Ajax requests. Its use is not recommended.
see

``

since

1.1

example
````Sets the defaults for Ajax requests to the url "/xmlhttp/", disables global handlers and uses POST instead of GET. The following Ajax requests then sends some data without having to set anything else.
```
$.ajaxSetup({
url: "/xmlhttp/",
global: false,
type: "POST"
});
$.ajax({ data: myData });
```
Parameters
- options: AjaxSettings
  
  A set of key/value pairs that configure the default Ajax request. All options are optional.
Returns AjaxSettings

ajaxTransport

ajaxTransport(dataType: string, handler: function): void

Creates an object that handles the actual transmission of Ajax data.

see

``

since

1.5

Parameters
- dataType: string
  
  A string identifying the data type to use
- handler: function
  
  A handler to return the new transport object to use with the data type provided in the first argument.
  - - (options: AjaxSettings, originalOptions: AjaxSettings, jqXHR: jqXHR): Transport | void
    - Parameters
      - options: AjaxSettings
      - originalOptions: AjaxSettings
      - jqXHR: jqXHR
      Returns Transport | void
Returns void

camelCase

camelCase(value: string): string

deprecated

Deprecated since 3.3. Internal. See ``.

Parameters
- value: string
Returns string

cleanData

cleanData(elems: ArrayLike<Element | Document | Window | PlainObject>): void

Parameters
- elems: ArrayLike<Element | Document | Window | PlainObject>
Returns void

contains

contains(container: Element, contained: Element): boolean

Check to see if a DOM element is a descendant of another DOM element.
see

``

since

1.4

example
````Check if an element is a descendant of another.
```
$.contains( document.documentElement, document.body ); // true
$.contains( document.body, document.documentElement ); // false
```
Parameters
- container: Element
  
  The DOM element that may contain the other element.
- contained: Element
  
  The DOM element that may be contained by (a descendant of) the other element.
Returns boolean

css

css(elem: Element, name: string): any

Parameters
- elem: Element
- name: string
Returns any

data

data<T>(element: Element | Document | Window | PlainObject, key: string, value: T): T
data(element: Element | Document | Window | PlainObject, key: string, value: undefined): any
data(element: Element | Document | Window | PlainObject, key?: string): any

Store arbitrary data associated with the specified element. Returns the value that was set.

see

since

1.2.3

example

````Get the data named "blah" stored at for an element.

<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery.data demo</title>
<style>
div {
margin: 5px;
background: yellow;
}
button {
margin: 5px;
font-size: 14px;
}
p {
margin: 5px;
color: blue;
}
span {
color: red;
}
</style>
<script src="https://code.jquery.com/jquery-3.3.1.js"></script>
</head>
<body>

<div>A div</div>
<button>Get "blah" from the div</button>
<button>Set "blah" to "hello"</button>
<button>Set "blah" to 86</button>
<button>Remove "blah" from the div</button>
<p>The "blah" value of this div is <span>?</span></p>

<script>
$( "button" ).click( function() {
var value,
div = $( "div" )[ 0 ];
switch ( $( "button" ).index( this ) ) {
case 0 :
value = jQuery.data( div, "blah" );
break;
case 1 :
jQuery.data( div, "blah", "hello" );
value = "Stored!";
break;
case 2 :
jQuery.data( div, "blah", 86 );
value = "Stored!";
break;
case 3 :
jQuery.removeData( div, "blah" );
value = "Removed!";
break;
}
$( "span" ).text( "" + value );
});
</script>

</body>
</html>

Type parameters

T: string | number | boolean | symbol | object | null

Parameters

element: Element | Document | Window | PlainObject

The DOM element to associate with the data.
key: string

A string naming the piece of data to set.
value: T

The new data value; this can be any Javascript type except undefined.

Returns T

Returns value at named data store for the element, as set by jQuery.data(element, name, value), or the full data store for the element.

see

``

since

1.2.3

Parameters
- element: Element | Document | Window | PlainObject
  
  The DOM element to query for the data.
- key: string
  
  Name of the data stored.
- value: undefined
  
  undefined is not recognized as a data value. Calls such as jQuery.data( el, "name", undefined ) will return the corresponding data for "name", and is therefore the same as jQuery.data( el, "name" )
Returns any

Returns value at named data store for the element, as set by jQuery.data(element, name, value), or the full data store for the element.

see

since

1.2.3

since

1.4

example

````Store then retrieve a value from the div element.

<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery.data demo</title>
<style>
div {
color: blue;
}
span {
color: red;
}
</style>
<script src="https://code.jquery.com/jquery-3.3.1.js"></script>
</head>
<body>

<div>
The values stored were
<span></span>
and
<span></span>
</div>

<script>
var div = $( "div" )[ 0 ];
jQuery.data( div, "test", {
first: 16,
last: "pizza!"
});
$( "span:first" ).text( jQuery.data( div, "test" ).first );
$( "span:last" ).text( jQuery.data( div, "test" ).last );
</script>

</body>
</html>

Parameters

element: Element | Document | Window | PlainObject

The DOM element to query for the data.
Optional key: string

Name of the data stored.

Returns any

dequeue

dequeue(element: Element, queueName?: string): void

Execute the next function on the queue for the matched element.

see

since

1.3

example

````Use jQuery.dequeue() to end a custom queue function which allows the queue to keep going.

<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery.dequeue demo</title>
<style>
div {
margin: 3px;
width: 50px;
position: absolute;
height: 50px;
left: 10px;
top: 30px;
background-color: yellow;
}
div.red {
background-color: red;
}
</style>
<script src="https://code.jquery.com/jquery-3.3.1.js"></script>
</head>
<body>

<button>Start</button>
<div></div>

<script>
$( "button" ).click(function() {
$( "div" )
.animate({ left: '+=200px' }, 2000 )
.animate({ top: '0px' }, 600 )
.queue(function() {
$( this ).toggleClass( "red" );
$.dequeue( this );
})
.animate({ left:'10px', top:'30px' }, 700 );
});
</script>

</body>
</html>

Parameters

element: Element

A DOM element from which to remove and execute a queued function.
Optional queueName: string

A string containing the name of the queue. Defaults to fx, the standard effects queue.

Returns void

each

each<T>(array: ArrayLike<T>, callback: function): ArrayLike<T>
each<T, K>(obj: T, callback: function): T

A generic iterator function, which can be used to seamlessly iterate over both objects and arrays. Arrays and array-like objects with a length property (such as a function's arguments object) are iterated by numeric index, from 0 to length-1. Other objects are iterated via their named properties.

see

since

1.0

example

````Iterates through the array displaying each number as both a word and numeral

<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery.each demo</title>
<style>
div {
color: blue;
}
div#five {
color: red;
}
</style>
<script src="https://code.jquery.com/jquery-3.3.1.js"></script>
</head>
<body>

<div id="one"></div>
<div id="two"></div>
<div id="three"></div>
<div id="four"></div>
<div id="five"></div>

<script>
var arr = [ "one", "two", "three", "four", "five" ];
var obj = { one: 1, two: 2, three: 3, four: 4, five: 5 };

jQuery.each( arr, function( i, val ) {
$( "#" + val ).text( "Mine is " + val + "." );

// Will stop running after "three"
return ( val !== "three" );
});

jQuery.each( obj, function( i, val ) {
$( "#" + i ).append( document.createTextNode( " - " + val ) );
});
</script>

</body>
</html>

example

````Iterates over items in an array, accessing both the current item and its index.

$.each( [ "a", "b", "c" ], function( i, l ){
alert( "Index #" + i + ": " + l );
});

Type parameters

Parameters

array: ArrayLike<T>

The array to iterate over.
callback: function

The function that will be executed on every object.
- - (this: T, indexInArray: number, value: T): any
  - Parameters
    - this: T
    - indexInArray: number
    - value: T
    Returns any

Returns ArrayLike<T>

see

since

1.0

example

````Iterates through the array displaying each number as both a word and numeral

<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery.each demo</title>
<style>
div {
color: blue;
}
div#five {
color: red;
}
</style>
<script src="https://code.jquery.com/jquery-3.3.1.js"></script>
</head>
<body>

<div id="one"></div>
<div id="two"></div>
<div id="three"></div>
<div id="four"></div>
<div id="five"></div>

<script>
var arr = [ "one", "two", "three", "four", "five" ];
var obj = { one: 1, two: 2, three: 3, four: 4, five: 5 };

jQuery.each( arr, function( i, val ) {
$( "#" + val ).text( "Mine is " + val + "." );

// Will stop running after "three"
return ( val !== "three" );
});

jQuery.each( obj, function( i, val ) {
$( "#" + i ).append( document.createTextNode( " - " + val ) );
});
</script>

</body>
</html>

example

````Iterates over the properties in an object, accessing both the current item and its key.

$.each({ name: "John", lang: "JS" }, function( k, v ) {
alert( "Key: " + k + ", Value: " + v );
});

Type parameters

T
K: keyof T

Parameters

obj: T

The object to iterate over.
callback: function

The function that will be executed on every object.
- - (this: T[K], propertyName: K, valueOfProperty: T[K]): any
  - Parameters
    - this: T[K]
    - propertyName: K
    - valueOfProperty: T[K]
    Returns any

Returns T

error

error(message: string): any

Takes a string and throws an exception containing it.
see

``

since

1.4.1

example
````Override jQuery.error for display in Firebug.
```
jQuery.error = console.error;
```
Parameters
- message: string
  
  The message to send out.
Returns any

escapeSelector

escapeSelector(selector: Selector): Selector

Escapes any character that has a special meaning in a CSS selector.
see

``

since

3.0

example
````Escape an ID containing a hash.
```
$.escapeSelector( "#target" ); // "\#target"
```
example
````Select all the elements having a class name of .box inside a div.
```
$( "div" ).find( "." + $.escapeSelector( ".box" ) );
```
Parameters
- selector: Selector
  
  A string containing a selector expression to escape.
Returns Selector

extend

extend<T, U, V, W, X, Y, Z>(deep: true, target: T, object1: U, object2: V, object3: W, object4: X, object5: Y, object6: Z): T & U & V & W & X & Y & Z
extend<T, U, V, W, X, Y>(deep: true, target: T, object1: U, object2: V, object3: W, object4: X, object5: Y): T & U & V & W & X & Y
extend<T, U, V, W, X>(deep: true, target: T, object1: U, object2: V, object3: W, object4: X): T & U & V & W & X
extend<T, U, V, W>(deep: true, target: T, object1: U, object2: V, object3: W): T & U & V & W
extend<T, U, V>(deep: true, target: T, object1: U, object2: V): T & U & V
extend<T, U>(deep: true, target: T, object1: U): T & U
extend<T>(deep: true, target: T): this & T
extend(deep: true, target: any, object1: any, ...objectN: any[]): any
extend<T, U, V, W, X, Y, Z>(target: T, object1: U, object2: V, object3: W, object4: X, object5: Y, object6: Z): T & U & V & W & X & Y & Z
extend<T, U, V, W, X, Y>(target: T, object1: U, object2: V, object3: W, object4: X, object5: Y): T & U & V & W & X & Y
extend<T, U, V, W, X>(target: T, object1: U, object2: V, object3: W, object4: X): T & U & V & W & X
extend<T, U, V, W>(target: T, object1: U, object2: V, object3: W): T & U & V & W
extend<T, U, V>(target: T, object1: U, object2: V): T & U & V
extend<T, U>(target: T, object1: U): T & U
extend<T>(target: T): this & T
extend(target: any, object1: any, ...objectN: any[]): any

Merge the contents of two or more objects together into the first object.
see

``

since

1.1.4

example
````Merge two objects recursively, modifying the first.
```
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery.extend demo</title>
<script src="https://code.jquery.com/jquery-3.3.1.js"></script>
</head>
<body>

<div id="log"></div>

<script>
var object1 = {
apple: 0,
banana: { weight: 52, price: 100 },
cherry: 97
};
var object2 = {
banana: { price: 200 },
durian: 100
};

// Merge object2 into object1, recursively
$.extend( true, object1, object2 );

// Assuming JSON.stringify - not available in IE<8
$( "#log" ).append( JSON.stringify( object1 ) );
</script>

</body>
</html>
```
Type parameters
- T
- U
- V
- W
- X
- Y
- Z
Parameters
- deep: true
  
  If true, the merge becomes recursive (aka. deep copy). Passing false for this argument is not supported.
- target: T
  
  The object to extend. It will receive the new properties.
- object1: U
  
  An object containing additional properties to merge in.
- object2: V
  
  An object containing additional properties to merge in.
- object3: W
  
  An object containing additional properties to merge in.
- object4: X
  
  An object containing additional properties to merge in.
- object5: Y
  
  An object containing additional properties to merge in.
- object6: Z
  
  An object containing additional properties to merge in.
Returns T & U & V & W & X & Y & Z
Merge the contents of two or more objects together into the first object.
see

``

since

1.1.4

example
````Merge two objects recursively, modifying the first.
```
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery.extend demo</title>
<script src="https://code.jquery.com/jquery-3.3.1.js"></script>
</head>
<body>

<div id="log"></div>

<script>
var object1 = {
apple: 0,
banana: { weight: 52, price: 100 },
cherry: 97
};
var object2 = {
banana: { price: 200 },
durian: 100
};

// Merge object2 into object1, recursively
$.extend( true, object1, object2 );

// Assuming JSON.stringify - not available in IE<8
$( "#log" ).append( JSON.stringify( object1 ) );
</script>

</body>
</html>
```
Type parameters
- T
- U
- V
- W
- X
- Y
Parameters
- deep: true
  
  If true, the merge becomes recursive (aka. deep copy). Passing false for this argument is not supported.
- target: T
  
  The object to extend. It will receive the new properties.
- object1: U
  
  An object containing additional properties to merge in.
- object2: V
  
  An object containing additional properties to merge in.
- object3: W
  
  An object containing additional properties to merge in.
- object4: X
  
  An object containing additional properties to merge in.
- object5: Y
  
  An object containing additional properties to merge in.
Returns T & U & V & W & X & Y
Merge the contents of two or more objects together into the first object.
see

``

since

1.1.4

example
````Merge two objects recursively, modifying the first.
```
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery.extend demo</title>
<script src="https://code.jquery.com/jquery-3.3.1.js"></script>
</head>
<body>

<div id="log"></div>

<script>
var object1 = {
apple: 0,
banana: { weight: 52, price: 100 },
cherry: 97
};
var object2 = {
banana: { price: 200 },
durian: 100
};

// Merge object2 into object1, recursively
$.extend( true, object1, object2 );

// Assuming JSON.stringify - not available in IE<8
$( "#log" ).append( JSON.stringify( object1 ) );
</script>

</body>
</html>
```
Type parameters
- T
- U
- V
- W
- X
Parameters
- deep: true
  
  If true, the merge becomes recursive (aka. deep copy). Passing false for this argument is not supported.
- target: T
  
  The object to extend. It will receive the new properties.
- object1: U
  
  An object containing additional properties to merge in.
- object2: V
  
  An object containing additional properties to merge in.
- object3: W
  
  An object containing additional properties to merge in.
- object4: X
  
  An object containing additional properties to merge in.
Returns T & U & V & W & X

Merge the contents of two or more objects together into the first object.

see

since

1.1.4

example

````Merge two objects recursively, modifying the first.

<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery.extend demo</title>
<script src="https://code.jquery.com/jquery-3.3.1.js"></script>
</head>
<body>

<div id="log"></div>

<script>
var object1 = {
apple: 0,
banana: { weight: 52, price: 100 },
cherry: 97
};
var object2 = {
banana: { price: 200 },
durian: 100
};

// Merge object2 into object1, recursively
$.extend( true, object1, object2 );

// Assuming JSON.stringify - not available in IE<8
$( "#log" ).append( JSON.stringify( object1 ) );
</script>

</body>
</html>

Type parameters

Parameters

deep: true

If true, the merge becomes recursive (aka. deep copy). Passing false for this argument is not supported.
target: T

The object to extend. It will receive the new properties.
object1: U

An object containing additional properties to merge in.
object2: V

An object containing additional properties to merge in.
object3: W

An object containing additional properties to merge in.

Returns T & U & V & W

Merge the contents of two or more objects together into the first object.

see

since

1.1.4

example

````Merge two objects recursively, modifying the first.

<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery.extend demo</title>
<script src="https://code.jquery.com/jquery-3.3.1.js"></script>
</head>
<body>

<div id="log"></div>

<script>
var object1 = {
apple: 0,
banana: { weight: 52, price: 100 },
cherry: 97
};
var object2 = {
banana: { price: 200 },
durian: 100
};

// Merge object2 into object1, recursively
$.extend( true, object1, object2 );

// Assuming JSON.stringify - not available in IE<8
$( "#log" ).append( JSON.stringify( object1 ) );
</script>

</body>
</html>

Type parameters

Parameters

deep: true

If true, the merge becomes recursive (aka. deep copy). Passing false for this argument is not supported.
target: T

The object to extend. It will receive the new properties.
object1: U

An object containing additional properties to merge in.
object2: V

An object containing additional properties to merge in.

Returns T & U & V

Merge the contents of two or more objects together into the first object.

see

since

1.1.4

example

````Merge two objects recursively, modifying the first.

<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery.extend demo</title>
<script src="https://code.jquery.com/jquery-3.3.1.js"></script>
</head>
<body>

<div id="log"></div>

<script>
var object1 = {
apple: 0,
banana: { weight: 52, price: 100 },
cherry: 97
};
var object2 = {
banana: { price: 200 },
durian: 100
};

// Merge object2 into object1, recursively
$.extend( true, object1, object2 );

// Assuming JSON.stringify - not available in IE<8
$( "#log" ).append( JSON.stringify( object1 ) );
</script>

</body>
</html>

Type parameters

Parameters

deep: true

If true, the merge becomes recursive (aka. deep copy). Passing false for this argument is not supported.
target: T

The object to extend. It will receive the new properties.
object1: U

An object containing additional properties to merge in.

Returns T & U

Merge the contents of two or more objects together into the first object.

see

``

since

1.1.4

Type parameters
- T
Parameters
- deep: true
  
  If true, the merge becomes recursive (aka. deep copy). Passing false for this argument is not supported.
- target: T
  
  The object to extend. It will receive the new properties.
Returns this & T

Merge the contents of two or more objects together into the first object.

see

since

1.1.4

example

````Merge two objects recursively, modifying the first.

<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery.extend demo</title>
<script src="https://code.jquery.com/jquery-3.3.1.js"></script>
</head>
<body>

<div id="log"></div>

<script>
var object1 = {
apple: 0,
banana: { weight: 52, price: 100 },
cherry: 97
};
var object2 = {
banana: { price: 200 },
durian: 100
};

// Merge object2 into object1, recursively
$.extend( true, object1, object2 );

// Assuming JSON.stringify - not available in IE<8
$( "#log" ).append( JSON.stringify( object1 ) );
</script>

</body>
</html>

Parameters

deep: true

If true, the merge becomes recursive (aka. deep copy). Passing false for this argument is not supported.
target: any

The object to extend. It will receive the new properties.
object1: any

An object containing additional properties to merge in.
Rest ...objectN: any[]

Additional objects containing properties to merge in.

Returns any

Merge the contents of two or more objects together into the first object.

see

since

1.0

example

````Merge two objects, modifying the first.

<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery.extend demo</title>
<script src="https://code.jquery.com/jquery-3.3.1.js"></script>
</head>
<body>

<div id="log"></div>

<script>
var object1 = {
apple: 0,
banana: { weight: 52, price: 100 },
cherry: 97
};
var object2 = {
banana: { price: 200 },
durian: 100
};

// Merge object2 into object1
$.extend( object1, object2 );

// Assuming JSON.stringify - not available in IE<8
$( "#log" ).append( JSON.stringify( object1 ) );
</script>

</body>
</html>

example

````Merge defaults and options, without modifying the defaults. This is a common plugin development pattern.

<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery.extend demo</title>
<script src="https://code.jquery.com/jquery-3.3.1.js"></script>
</head>
<body>

<div id="log"></div>

<script>
var defaults = { validate: false, limit: 5, name: "foo" };
var options = { validate: true, name: "bar" };

// Merge defaults and options, without modifying defaults
var settings = $.extend( {}, defaults, options );

// Assuming JSON.stringify - not available in IE<8
$( "#log" ).append( "<div><b>defaults -- </b>" + JSON.stringify( defaults ) + "</div>" );
$( "#log" ).append( "<div><b>options -- </b>" + JSON.stringify( options ) + "</div>" );
$( "#log" ).append( "<div><b>settings -- </b>" + JSON.stringify( settings ) + "</div>" );
</script>

</body>
</html>

Type parameters

Parameters

target: T

An object that will receive the new properties if additional objects are passed in or that will extend the jQuery namespace if it is the sole argument.
object1: U

An object containing additional properties to merge in.
object2: V

An object containing additional properties to merge in.
object3: W

An object containing additional properties to merge in.
object4: X

An object containing additional properties to merge in.
object5: Y

An object containing additional properties to merge in.
object6: Z

An object containing additional properties to merge in.

Returns T & U & V & W & X & Y & Z

Merge the contents of two or more objects together into the first object.

see

since

1.0

example

````Merge two objects, modifying the first.

<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery.extend demo</title>
<script src="https://code.jquery.com/jquery-3.3.1.js"></script>
</head>
<body>

<div id="log"></div>

<script>
var object1 = {
apple: 0,
banana: { weight: 52, price: 100 },
cherry: 97
};
var object2 = {
banana: { price: 200 },
durian: 100
};

// Merge object2 into object1
$.extend( object1, object2 );

// Assuming JSON.stringify - not available in IE<8
$( "#log" ).append( JSON.stringify( object1 ) );
</script>

</body>
</html>

example

````Merge defaults and options, without modifying the defaults. This is a common plugin development pattern.

<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery.extend demo</title>
<script src="https://code.jquery.com/jquery-3.3.1.js"></script>
</head>
<body>

<div id="log"></div>

<script>
var defaults = { validate: false, limit: 5, name: "foo" };
var options = { validate: true, name: "bar" };

// Merge defaults and options, without modifying defaults
var settings = $.extend( {}, defaults, options );

// Assuming JSON.stringify - not available in IE<8
$( "#log" ).append( "<div><b>defaults -- </b>" + JSON.stringify( defaults ) + "</div>" );
$( "#log" ).append( "<div><b>options -- </b>" + JSON.stringify( options ) + "</div>" );
$( "#log" ).append( "<div><b>settings -- </b>" + JSON.stringify( settings ) + "</div>" );
</script>

</body>
</html>

Type parameters

Parameters

target: T

An object that will receive the new properties if additional objects are passed in or that will extend the jQuery namespace if it is the sole argument.
object1: U

An object containing additional properties to merge in.
object2: V

An object containing additional properties to merge in.
object3: W

An object containing additional properties to merge in.
object4: X

An object containing additional properties to merge in.
object5: Y

An object containing additional properties to merge in.

Returns T & U & V & W & X & Y

Merge the contents of two or more objects together into the first object.

see

since

1.0

example

````Merge two objects, modifying the first.

<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery.extend demo</title>
<script src="https://code.jquery.com/jquery-3.3.1.js"></script>
</head>
<body>

<div id="log"></div>

<script>
var object1 = {
apple: 0,
banana: { weight: 52, price: 100 },
cherry: 97
};
var object2 = {
banana: { price: 200 },
durian: 100
};

// Merge object2 into object1
$.extend( object1, object2 );

// Assuming JSON.stringify - not available in IE<8
$( "#log" ).append( JSON.stringify( object1 ) );
</script>

</body>
</html>

example

````Merge defaults and options, without modifying the defaults. This is a common plugin development pattern.

<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery.extend demo</title>
<script src="https://code.jquery.com/jquery-3.3.1.js"></script>
</head>
<body>

<div id="log"></div>

<script>
var defaults = { validate: false, limit: 5, name: "foo" };
var options = { validate: true, name: "bar" };

// Merge defaults and options, without modifying defaults
var settings = $.extend( {}, defaults, options );

// Assuming JSON.stringify - not available in IE<8
$( "#log" ).append( "<div><b>defaults -- </b>" + JSON.stringify( defaults ) + "</div>" );
$( "#log" ).append( "<div><b>options -- </b>" + JSON.stringify( options ) + "</div>" );
$( "#log" ).append( "<div><b>settings -- </b>" + JSON.stringify( settings ) + "</div>" );
</script>

</body>
</html>

Type parameters

Parameters

target: T

An object that will receive the new properties if additional objects are passed in or that will extend the jQuery namespace if it is the sole argument.
object1: U

An object containing additional properties to merge in.
object2: V

An object containing additional properties to merge in.
object3: W

An object containing additional properties to merge in.
object4: X

An object containing additional properties to merge in.

Returns T & U & V & W & X

Merge the contents of two or more objects together into the first object.

see

since

1.0

example

````Merge two objects, modifying the first.

<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery.extend demo</title>
<script src="https://code.jquery.com/jquery-3.3.1.js"></script>
</head>
<body>

<div id="log"></div>

<script>
var object1 = {
apple: 0,
banana: { weight: 52, price: 100 },
cherry: 97
};
var object2 = {
banana: { price: 200 },
durian: 100
};

// Merge object2 into object1
$.extend( object1, object2 );

// Assuming JSON.stringify - not available in IE<8
$( "#log" ).append( JSON.stringify( object1 ) );
</script>

</body>
</html>

example

````Merge defaults and options, without modifying the defaults. This is a common plugin development pattern.

<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery.extend demo</title>
<script src="https://code.jquery.com/jquery-3.3.1.js"></script>
</head>
<body>

<div id="log"></div>

<script>
var defaults = { validate: false, limit: 5, name: "foo" };
var options = { validate: true, name: "bar" };

// Merge defaults and options, without modifying defaults
var settings = $.extend( {}, defaults, options );

// Assuming JSON.stringify - not available in IE<8
$( "#log" ).append( "<div><b>defaults -- </b>" + JSON.stringify( defaults ) + "</div>" );
$( "#log" ).append( "<div><b>options -- </b>" + JSON.stringify( options ) + "</div>" );
$( "#log" ).append( "<div><b>settings -- </b>" + JSON.stringify( settings ) + "</div>" );
</script>

</body>
</html>

Type parameters

Parameters

target: T

An object that will receive the new properties if additional objects are passed in or that will extend the jQuery namespace if it is the sole argument.
object1: U

An object containing additional properties to merge in.
object2: V

An object containing additional properties to merge in.
object3: W

An object containing additional properties to merge in.

Returns T & U & V & W

Merge the contents of two or more objects together into the first object.

see

since

1.0

example

````Merge two objects, modifying the first.

<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery.extend demo</title>
<script src="https://code.jquery.com/jquery-3.3.1.js"></script>
</head>
<body>

<div id="log"></div>

<script>
var object1 = {
apple: 0,
banana: { weight: 52, price: 100 },
cherry: 97
};
var object2 = {
banana: { price: 200 },
durian: 100
};

// Merge object2 into object1
$.extend( object1, object2 );

// Assuming JSON.stringify - not available in IE<8
$( "#log" ).append( JSON.stringify( object1 ) );
</script>

</body>
</html>

example

````Merge defaults and options, without modifying the defaults. This is a common plugin development pattern.

<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery.extend demo</title>
<script src="https://code.jquery.com/jquery-3.3.1.js"></script>
</head>
<body>

<div id="log"></div>

<script>
var defaults = { validate: false, limit: 5, name: "foo" };
var options = { validate: true, name: "bar" };

// Merge defaults and options, without modifying defaults
var settings = $.extend( {}, defaults, options );

// Assuming JSON.stringify - not available in IE<8
$( "#log" ).append( "<div><b>defaults -- </b>" + JSON.stringify( defaults ) + "</div>" );
$( "#log" ).append( "<div><b>options -- </b>" + JSON.stringify( options ) + "</div>" );
$( "#log" ).append( "<div><b>settings -- </b>" + JSON.stringify( settings ) + "</div>" );
</script>

</body>
</html>

Type parameters

Parameters

target: T

An object that will receive the new properties if additional objects are passed in or that will extend the jQuery namespace if it is the sole argument.
object1: U

An object containing additional properties to merge in.
object2: V

An object containing additional properties to merge in.

Returns T & U & V

Merge the contents of two or more objects together into the first object.

see

since

1.0

example

````Merge two objects, modifying the first.

<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery.extend demo</title>
<script src="https://code.jquery.com/jquery-3.3.1.js"></script>
</head>
<body>

<div id="log"></div>

<script>
var object1 = {
apple: 0,
banana: { weight: 52, price: 100 },
cherry: 97
};
var object2 = {
banana: { price: 200 },
durian: 100
};

// Merge object2 into object1
$.extend( object1, object2 );

// Assuming JSON.stringify - not available in IE<8
$( "#log" ).append( JSON.stringify( object1 ) );
</script>

</body>
</html>

example

````Merge defaults and options, without modifying the defaults. This is a common plugin development pattern.

<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery.extend demo</title>
<script src="https://code.jquery.com/jquery-3.3.1.js"></script>
</head>
<body>

<div id="log"></div>

<script>
var defaults = { validate: false, limit: 5, name: "foo" };
var options = { validate: true, name: "bar" };

// Merge defaults and options, without modifying defaults
var settings = $.extend( {}, defaults, options );

// Assuming JSON.stringify - not available in IE<8
$( "#log" ).append( "<div><b>defaults -- </b>" + JSON.stringify( defaults ) + "</div>" );
$( "#log" ).append( "<div><b>options -- </b>" + JSON.stringify( options ) + "</div>" );
$( "#log" ).append( "<div><b>settings -- </b>" + JSON.stringify( settings ) + "</div>" );
</script>

</body>
</html>

Type parameters

Parameters

target: T

An object that will receive the new properties if additional objects are passed in or that will extend the jQuery namespace if it is the sole argument.
object1: U

An object containing additional properties to merge in.

Returns T & U

Merge the contents of two or more objects together into the first object.

see

``

since

1.0

Type parameters
- T
Parameters
- target: T
  
  An object that will receive the new properties if additional objects are passed in or that will extend the jQuery namespace if it is the sole argument.
Returns this & T

Merge the contents of two or more objects together into the first object.

see

since

1.0

example

````Merge two objects, modifying the first.

<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery.extend demo</title>
<script src="https://code.jquery.com/jquery-3.3.1.js"></script>
</head>
<body>

<div id="log"></div>

<script>
var object1 = {
apple: 0,
banana: { weight: 52, price: 100 },
cherry: 97
};
var object2 = {
banana: { price: 200 },
durian: 100
};

// Merge object2 into object1
$.extend( object1, object2 );

// Assuming JSON.stringify - not available in IE<8
$( "#log" ).append( JSON.stringify( object1 ) );
</script>

</body>
</html>

example

````Merge defaults and options, without modifying the defaults. This is a common plugin development pattern.

<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery.extend demo</title>
<script src="https://code.jquery.com/jquery-3.3.1.js"></script>
</head>
<body>

<div id="log"></div>

<script>
var defaults = { validate: false, limit: 5, name: "foo" };
var options = { validate: true, name: "bar" };

// Merge defaults and options, without modifying defaults
var settings = $.extend( {}, defaults, options );

// Assuming JSON.stringify - not available in IE<8
$( "#log" ).append( "<div><b>defaults -- </b>" + JSON.stringify( defaults ) + "</div>" );
$( "#log" ).append( "<div><b>options -- </b>" + JSON.stringify( options ) + "</div>" );
$( "#log" ).append( "<div><b>settings -- </b>" + JSON.stringify( settings ) + "</div>" );
</script>

</body>
</html>

Parameters

target: any

An object that will receive the new properties if additional objects are passed in or that will extend the jQuery namespace if it is the sole argument.
object1: any

An object containing additional properties to merge in.
Rest ...objectN: any[]

Additional objects containing properties to merge in.

Returns any

get

get(url: string, data: PlainObject | string, success: DoneCallback | null, dataType?: string): jqXHR
get(url: string, success: DoneCallback | null, dataType: string): jqXHR
get(url: string, success_data: DoneCallback | PlainObject | string): jqXHR
get(url_settings?: string | UrlAjaxSettings): jqXHR

Load data from the server using a HTTP GET request.

see

``

since

1.0

Parameters
- url: string
  
  A string containing the URL to which the request is sent.
- data: PlainObject | string
  
  A plain object or string that is sent to the server with the request.
- success: DoneCallback | null
  
  A callback function that is executed if the request succeeds. Required if dataType is provided, but you can use null or `jQuery.noop` as a placeholder.
- Optional dataType: string
  
  The type of data expected from the server. Default: Intelligent Guess (xml, json, script, text, html).
Returns jqXHR
Load data from the server using a HTTP GET request.
see

``

since

1.0

example
````Get the test.php page contents, which has been returned in json format (<?php echo json_encode( array( "name"=>"John","time"=>"2pm" ) ); ?>), and add it to the page.
```
$.get( "test.php", function( data ) {
$( "body" )
.append( "Name: " + data.name ) // John
.append( "Time: " + data.time ); //  2pm
}, "json" );
```
Parameters
- url: string
  
  A string containing the URL to which the request is sent.
- success: DoneCallback | null
  
  A callback function that is executed if the request succeeds. Required if dataType is provided, but you can use null or `jQuery.noop` as a placeholder.
- dataType: string
  
  The type of data expected from the server. Default: Intelligent Guess (xml, json, script, text, html).
Returns jqXHR
Load data from the server using a HTTP GET request.
see

``

since

1.0

example
````Request the test.php page and send some additional data along (while still ignoring the return results).
```
$.get( "test.php", { name: "John", time: "2pm" } );
```
example
````Pass arrays of data to the server (while still ignoring the return results).
```
$.get( "test.php", { "choices[]": ["Jon", "Susan"] } );
```
example
````Alert the results from requesting test.php (HTML or XML, depending on what was returned).
```
$.get( "test.php", function( data ) {
alert( "Data Loaded: " + data );
});
```
example
````Alert the results from requesting test.cgi with an additional payload of data (HTML or XML, depending on what was returned).
```
$.get( "test.cgi", { name: "John", time: "2pm" } )
.done(function( data ) {
alert( "Data Loaded: " + data );
});
```
Parameters
- url: string
  
  A string containing the URL to which the request is sent.
- success_data: DoneCallback | PlainObject | string
  @param success_data
  - success — A callback function that is executed if the request succeeds. Required if dataType is provided,
```
        but you can use `null` or \`<a href="_jquery_d_.jquerystatic.html#noop">jQuery.noop</a>\` as a placeholder. <br>
```
  - data — A plain object or string that is sent to the server with the request.
Returns jqXHR

Load data from the server using a HTTP GET request.

see

since

1.0

since

1.12

since

2.2

example

````Request the test.php page, but ignore the return results.

$.get( "test.php" );

Parameters

Optional url_settings: string | UrlAjaxSettings

@param url_settings

url — A string containing the URL to which the request is sent.

settings — A set of key/value pairs that configure the Ajax request. All properties except for url are

         optional. A default can be set for any option with \`<a href="_jquery_d_.jquerystatic.html#ajaxsetup">$.ajaxSetup()</a>\`. See \`<a href="https://api.jquery.com/jquery.ajax/#jQuery-ajax-settings" class="external">jQuery.ajax( settings )</a>\`
         for a complete list of all settings. The type option will automatically be set to `GET`.

Returns jqXHR

getJSON

getJSON(url: string, data: PlainObject | string, success: DoneCallback): jqXHR
getJSON(url: string, success_data?: DoneCallback | PlainObject | string): jqXHR

Load JSON-encoded data from the server using a GET HTTP request.

see

``

since

1.0

Parameters
- url: string
  
  A string containing the URL to which the request is sent.
- data: PlainObject | string
  
  A plain object or string that is sent to the server with the request.
- success: DoneCallback
  
  A callback function that is executed if the request succeeds.
Returns jqXHR

Load JSON-encoded data from the server using a GET HTTP request.

see

since

1.0

example

````Loads the four most recent pictures of Mount Rainier from the Flickr JSONP API.

<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery.getJSON demo</title>
<style>
img {
height: 100px;
float: left;
}
</style>
<script src="https://code.jquery.com/jquery-3.3.1.js"></script>
</head>
<body>

<div id="images"></div>

<script>
(function() {
var flickerAPI = "https://api.flickr.com/services/feeds/photos_public.gne?jsoncallback=?";
$.getJSON( flickerAPI, {
tags: "mount rainier",
tagmode: "any",
format: "json"
})
.done(function( data ) {
$.each( data.items, function( i, item ) {
$( "<img>" ).attr( "src", item.media.m ).appendTo( "#images" );
if ( i === 3 ) {
return false;
}
});
});
})();
</script>

</body>
</html>

example

````Load the JSON data from test.js and access a name from the returned JSON data.

$.getJSON( "test.js", function( json ) {
console.log( "JSON Data: " + json.users[ 3 ].name );
});

example

````Load the JSON data from test.js, passing along additional data, and access a name from the returned JSON data. If an error occurs, log an error message instead.

$.getJSON( "test.js", { name: "John", time: "2pm" } )
.done(function( json ) {
console.log( "JSON Data: " + json.users[ 3 ].name );
})
.fail(function( jqxhr, textStatus, error ) {
var err = textStatus + ", " + error;
console.log( "Request Failed: " + err );
});

Parameters

url: string

A string containing the URL to which the request is sent.
Optional success_data: DoneCallback | PlainObject | string
@param url_settings
- success — A callback function that is executed if the request succeeds.
- data — A plain object or string that is sent to the server with the request.

Returns jqXHR

getScript

getScript(url: string, success?: DoneCallback<string | undefined>): jqXHR<string | undefined>
getScript(options: UrlAjaxSettings): jqXHR<string | undefined>

Load a JavaScript file from the server using a GET HTTP request, then execute it.

see

since

1.0

example

````Define a $.cachedScript() method that allows fetching a cached script:

jQuery.cachedScript = function( url, options ) {

// Allow user to set any option except for dataType, cache, and url
options = $.extend( options || {}, {
dataType: "script",
cache: true,
url: url
});

// Use $.ajax() since it is more flexible than $.getScript
// Return the jqXHR object so we can chain callbacks
return jQuery.ajax( options );
};

// Usage
$.cachedScript( "ajax/test.js" ).done(function( script, textStatus ) {
console.log( textStatus );
});

example

````Load the official jQuery Color Animation plugin dynamically and bind some color animations to occur once the new functionality is loaded.

<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery.getScript demo</title>
<style>
.block {
background-color: blue;
width: 150px;
height: 70px;
margin: 10px;
}
</style>
<script src="https://code.jquery.com/jquery-3.3.1.js"></script>
</head>
<body>

<button id="go">&raquo; Run</button>
<div class="block"></div>

<script>
var url = "https://code.jquery.com/color/jquery.color.js";
$.getScript( url, function() {
$( "#go" ).click(function() {
$( ".block" )
.animate({
backgroundColor: "rgb(255, 180, 180)"
}, 1000 )
.delay( 500 )
.animate({
backgroundColor: "olive"
}, 1000 )
.delay( 500 )
.animate({
backgroundColor: "#00f"
}, 1000 );
});
});
</script>

</body>
</html>

Parameters

url: string

A string containing the URL to which the request is sent.
Optional success: DoneCallback<string | undefined>

A callback function that is executed if the request succeeds.

Returns jqXHR<string | undefined>

Load a JavaScript file from the server using a GET HTTP request, then execute it.

see

``

since

1.12

since

2.2

Parameters
- options: UrlAjaxSettings
Returns jqXHR<string | undefined>

globalEval

globalEval(code: string): void

Execute some JavaScript code globally.
see

``

since

1.0.4

example
````Execute a script in the global context.
```
function test() {
jQuery.globalEval( "var newVar = true;" )
}
test();
// newVar === true
```
Parameters
- code: string
  
  The JavaScript code to execute.
Returns void

grep

grep<T>(array: ArrayLike<T>, funсtion: function, invert?: boolean): T[]

Finds the elements of an array which satisfy a filter function. The original array is not affected.
see

``

since

1.0

example
````Filters the original array of numbers leaving that are not 5 and have an index greater than 4. Then it removes all 9s.
```
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery.grep demo</title>
<style>
div {
color: blue;
}
p {
color: green;
margin: 0;
}
span {
color: red;
}
</style>
<script src="https://code.jquery.com/jquery-3.3.1.js"></script>
</head>
<body>

<div></div>
<p></p>
<span></span>

<script>
var arr = [ 1, 9, 3, 8, 6, 1, 5, 9, 4, 7, 3, 8, 6, 9, 1 ];
$( "div" ).text( arr.join( ", " ) );

arr = jQuery.grep(arr, function( n, i ) {
return ( n !== 5 && i > 4 );
});
$( "p" ).text( arr.join( ", " ) );

arr = jQuery.grep(arr, function( a ) {
return a !== 9;
});

$( "span" ).text( arr.join( ", " ) );
</script>

</body>
</html>
```
example
````Filter an array of numbers to include only numbers bigger then zero.
```
$.grep( [ 0, 1, 2 ], function( n, i ) {
return n > 0;
});
```
example
````Filter an array of numbers to include numbers that are not bigger than zero.
```
$.grep( [ 0, 1, 2 ], function( n, i ) {
return n > 0;
}, true );
```
Type parameters
- T
Parameters
- array: ArrayLike<T>
  
  The array-like object to search through.
- funсtion: function
  
  The function to process each item against. The first argument to the function is the item, and the second argument is the index. The function should return a Boolean value. this will be the global window object.
  - - (elementOfArray: T, indexInArray: number): boolean
    - Parameters
      - elementOfArray: T
      - indexInArray: number
      Returns boolean
- Optional invert: boolean
  
  If "invert" is false, or not provided, then the function returns an array consisting of all elements for which "callback" returns true. If "invert" is true, then the function returns an array consisting of all elements for which "callback" returns false.
Returns T[]

hasData

hasData(element: Element | Document | Window | PlainObject): boolean

Determine whether an element has any jQuery data associated with it.

see

since

1.5

example

````Set data on an element and see the results of hasData.

<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery.hasData demo</title>
<script src="https://code.jquery.com/jquery-3.3.1.js"></script>
</head>
<body>

<p>Results: </p>

<script>
var $p = jQuery( "p" ), p = $p[ 0 ];
$p.append( jQuery.hasData( p ) + " " ); // false

$.data( p, "testing", 123 );
$p.append( jQuery.hasData( p ) + " " ); // true

$.removeData( p, "testing" );
$p.append( jQuery.hasData( p ) + " " ); // false

$p.on( "click", function() {} );
$p.append( jQuery.hasData( p ) + " " ); // true

$p.off( "click" );
$p.append( jQuery.hasData( p ) + " " ); // false
</script>

</body>
</html>

Parameters

element: Element | Document | Window | PlainObject

A DOM element to be checked for data.

Returns boolean

holdReady

holdReady(hold: boolean): void

Holds or releases the execution of jQuery's ready event.
see

``

since

1.6

deprecated

Deprecated since 3.2. See ``.

Cause: The jQuery.holdReady() method has been deprecated due to its detrimental effect on the global performance of the page. This method can prevent all the code on the page from initializing for extended lengths of time.

Solution: Rewrite the page so that it does not require all jQuery ready handlers to be delayed. This might be accomplished, for example, by late-loading only the code that requires the delay when it is safe to run. Due to the complexity of this method, jQuery Migrate does not attempt to fill the functionality. If the underlying version of jQuery used with jQuery Migrate no longer contains jQuery.holdReady() the code will fail shortly after this warning appears.

example
````Delay the ready event until a custom plugin has loaded.
```
$.holdReady( true );
$.getScript( "myplugin.js", function() {
$.holdReady( false );
});
```
Parameters
- hold: boolean
  
  Indicates whether the ready hold is being requested or released
Returns void

htmlPrefilter

htmlPrefilter(html: htmlString): htmlString

Modify and filter HTML strings passed through jQuery manipulation methods.

see

``

since

1.12

since

2.2

Parameters
- html: htmlString
  
  The HTML string on which to operate.
Returns htmlString

inArray

inArray<T>(value: T, array: T[], fromIndex?: number): number

Search for a specified value within an array and return its index (or -1 if not found).

see

since

1.2

example

````Report the index of some elements in the array.

<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery.inArray demo</title>
<style>
div {
color: blue;
}
span {
color: red;
}
</style>
<script src="https://code.jquery.com/jquery-3.3.1.js"></script>
</head>
<body>

<div>"John" found at <span></span></div>
<div>4 found at <span></span></div>
<div>"Karl" not found, so <span></span></div>
<div>"Pete" is in the array, but not at or after index 2, so <span></span></div>

<script>
var arr = [ 4, "Pete", 8, "John" ];
var $spans = $( "span" );
$spans.eq( 0 ).text( jQuery.inArray( "John", arr ) );
$spans.eq( 1 ).text( jQuery.inArray( 4, arr ) );
$spans.eq( 2 ).text( jQuery.inArray( "Karl", arr ) );
$spans.eq( 3 ).text( jQuery.inArray( "Pete", arr, 2 ) );
</script>

</body>
</html>

Type parameters

Parameters

value: T

The value to search for.
array: T[]

An array through which to search.
Optional fromIndex: number

The index of the array at which to begin the search. The default is 0, which will search the whole array.

Returns number

isArray

isArray(obj: any): boolean

Determine whether the argument is an array.

see

since

1.3

deprecated

Deprecated since 3.2. Use `{@link ArrayConstructor.isArray Array.isArray}`.

example

````Finds out if the parameter is an array.

<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery.isArray demo</title>
<script src="https://code.jquery.com/jquery-3.3.1.js"></script>
</head>
<body>

Is [] an Array? <b></b>

<script>
$( "b" ).append( "" + $.isArray([]) );
</script>

</body>
</html>

Parameters

obj: any

Object to test whether or not it is an array.

Returns boolean

isEmptyObject

isEmptyObject(obj: any): boolean

Check to see if an object is empty (contains no enumerable properties).
see

``

since

1.4

example
````Check an object to see if it's empty.
```
jQuery.isEmptyObject({}); // true
jQuery.isEmptyObject({ foo: "bar" }); // false
```
Parameters
- obj: any
  
  The object that will be checked to see if it's empty.
Returns boolean

isFunction

isFunction(obj: any): boolean

Determine if the argument passed is a JavaScript function object.

see

since

1.2

deprecated

Deprecated since 3.3. Use typeof x === "function".

example

````Test a few parameter examples.

<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery.isFunction demo</title>
<style>
div {
color: blue;
margin: 2px;
font-size: 14px;
}
span {
color: red;
}
</style>
<script src="https://code.jquery.com/jquery-3.3.1.js"></script>
</head>
<body>

<div>jQuery.isFunction( objs[ 0 ] ) = <span></span></div>
<div>jQuery.isFunction( objs[ 1 ] ) = <span></span></div>
<div>jQuery.isFunction( objs[ 2 ] ) = <span></span></div>
<div>jQuery.isFunction( objs[ 3 ] ) = <span></span></div>
<div>jQuery.isFunction( objs[ 4 ] ) = <span></span></div>

<script>
function stub() {}
var objs = [
function() {},
{ x:15, y:20 },
null,
stub,
"function"
];

jQuery.each( objs, function( i ) {
var isFunc = jQuery.isFunction( objs[ i ]);
$( "span" ).eq( i ).text( isFunc );
});
</script>

</body>
</html>

example

````Finds out if the parameter is a function.

$.isFunction(function() {});

Parameters

obj: any

Object to test whether or not it is a function.

Returns boolean

isNumeric

isNumeric(value: any): boolean

Determines whether its argument represents a JavaScript number.

see

since

1.7

deprecated

Deprecated since 3.3. Internal. See ``.

example

````Sample return values of $.isNumeric with various inputs.

// true (numeric)
$.isNumeric( "-10" )
$.isNumeric( "0" )
$.isNumeric( 0xFF )
$.isNumeric( "0xFF" )
$.isNumeric( "8e5" )
$.isNumeric( "3.1415" )
$.isNumeric( +10 )
$.isNumeric( 0144 )

// false (non-numeric)
$.isNumeric( "-0x42" )
$.isNumeric( "7.2acdgs" )
$.isNumeric( "" )
$.isNumeric( {} )
$.isNumeric( NaN )
$.isNumeric( null )
$.isNumeric( true )
$.isNumeric( Infinity )
$.isNumeric( undefined )

Parameters

value: any

The value to be tested.

Returns boolean

isPlainObject

isPlainObject(obj: any): boolean

Check to see if an object is a plain object (created using "{}" or "new Object").
see

``

since

1.4

example
````Check an object to see if it's a plain object.
```
jQuery.isPlainObject({}) // true
jQuery.isPlainObject( "test" ) // false
```
Parameters
- obj: any
  
  The object that will be checked to see if it's a plain object.
Returns boolean

isWindow

isWindow(obj: any): boolean

Determine whether the argument is a window.
see

``

since

1.4.3

deprecated

Deprecated since 3.3. Internal. See ``.

Cause: This method returns true if its argument is thought to be a window element. It was created for internal use and is not a reliable way of detecting window for public needs.

Solution: Remove any use of jQuery.isWindow() from code. If it is truly needed it can be replaced with a check for obj != null && obj === obj.window which was the test used inside this method.

example
````Finds out if the parameter is a window.
```
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery.isWindow demo</title>
<script src="https://code.jquery.com/jquery-3.3.1.js"></script>
</head>
<body>

Is 'window' a window? <b></b>

<script>
$( "b" ).append( "" + $.isWindow( window ) );
</script>

</body>
</html>
```
Parameters
- obj: any
  
  Object to test whether or not it is a window.
Returns boolean

isXMLDoc

isXMLDoc(node: Node): boolean

Check to see if a DOM node is within an XML document (or is an XML document).
see

``

since

1.1.4

example
````Check an object to see if it's in an XML document.
```
jQuery.isXMLDoc( document ) // false
jQuery.isXMLDoc( document.body ) // false
```
Parameters
- node: Node
  
  The DOM node that will be checked to see if it's in an XML document.
Returns boolean

makeArray

makeArray<T>(obj: ArrayLike<T>): T[]

Convert an array-like object into a true JavaScript array.

see

since

1.2

example

````Turn a collection of HTMLElements into an Array of them.

<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery.makeArray demo</title>
<style>
div {
color: red;
}
</style>
<script src="https://code.jquery.com/jquery-3.3.1.js"></script>
</head>
<body>

<div>First</div>
<div>Second</div>
<div>Third</div>
<div>Fourth</div>

<script>
// Returns a NodeList
var elems = document.getElementsByTagName( "div" );
// Convert the NodeList to an Array
var arr = jQuery.makeArray( elems );
// Use an Array method on list of dom elements
arr.reverse();
$( arr ).appendTo( document.body );
</script>

</body>
</html>

example

````Turn a jQuery object into an array

var obj = $( "li" );
var arr = $.makeArray( obj );

Type parameters

Parameters

obj: ArrayLike<T>

Any object to turn into a native Array.

Returns T[]

map

map<T, TReturn>(array: T[], callback: function): TReturn[]
map<T, K, TReturn>(obj: T, callback: function): TReturn[]

Translate all items in an array or object to new array of items.
see

``

since

1.0

example
````Use $.map() to change the values of an array.
```
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery.map demo</title>
<style>
div {
color: blue;
}
p {
color: green;
margin: 0;
}
span {
color: red;
}
</style>
<script src="https://code.jquery.com/jquery-3.3.1.js"></script>
</head>
<body>

<div></div>
<p></p>
<span></span>

<script>
var arr = [ "a", "b", "c", "d", "e" ];
$( "div" ).text( arr.join( ", " ) );

arr = jQuery.map( arr, function( n, i ) {
return ( n.toUpperCase() + i );
});
$( "p" ).text( arr.join( ", " ) );

arr = jQuery.map( arr, function( a ) {
return a + a;
});
$( "span" ).text( arr.join( ", " ) );
</script>

</body>
</html>
```
example
````Map the original array to a new one and add 4 to each value.
```
$.map( [ 0, 1, 2 ], function( n ) {
return n + 4;
});
```
example
````Map the original array to a new one, adding 1 to each value if it is bigger then zero and removing it if not.
```
$.map( [ 0, 1, 2 ], function( n ) {
return n > 0 ? n + 1 : null;
});
```
example
````Map the original array to a new one; each element is added with its original value and the value plus one.
```
$.map( [ 0, 1, 2 ], function( n ) {
return [ n, n + 1 ];
});
```
example
````Map the original array to a new one; each element is squared.
```
$.map( [ 0, 1, 2, 3 ], function( a ) {
return a * a;
});
```
example
````Map the original array to a new one, removing numbers less than 50 by returning null and subtracting 45 from the rest.
```
$.map( [ 0, 1, 52, 97 ], function( a ) {
return (a > 50 ? a - 45 : null);
});
```
example
````Augment the resulting array by returning an array inside the function.
```
var array = [ 0, 1, 52, 97 ];
array = $.map( array, function( a, index ) {
return [ a - 45, index ];
});
```
Type parameters
- T
- TReturn
Parameters
- array: T[]
  
  The Array to translate.
- callback: function
  
  The function to process each item against. The first argument to the function is the array item, the second argument is the index in array The function can return any value. A returned array will be flattened into the resulting array. Within the function, this refers to the global (window) object.
  - - (this: Window, elementOfArray: T, indexInArray: number): TypeOrArray<TReturn> | null | undefined
    - Parameters
      - this: Window
      - elementOfArray: T
      - indexInArray: number
      Returns TypeOrArray<TReturn> | null | undefined
Returns TReturn[]
Translate all items in an array or object to new array of items.
see

``

since

1.6

example
````Map the original object to a new array and double each value.
```
var dimensions = { width: 10, height: 15, length: 20 };
dimensions = $.map( dimensions, function( value, index ) {
return value * 2;
});
```
example
````Map an object's keys to an array.
```
var dimensions = { width: 10, height: 15, length: 20 };
var keys = $.map( dimensions, function( value, key ) {
return key;
});
```
Type parameters
- T
- K: keyof T
- TReturn
Parameters
- obj: T
  
  The Object to translate.
- callback: function
  
  The function to process each item against. The first argument to the function is the value; the second argument is the key of the object property. The function can return any value to add to the array. A returned array will be flattened into the resulting array. Within the function, this refers to the global (window) object.
  - - (this: Window, propertyOfObject: T[K], key: K): TypeOrArray<TReturn> | null | undefined
    - Parameters
      - this: Window
      - propertyOfObject: T[K]
      - key: K
      Returns TypeOrArray<TReturn> | null | undefined
Returns TReturn[]

merge

merge<T, U>(first: ArrayLike<T>, second: ArrayLike<U>): Array<T | U>

Merge the contents of two arrays together into the first array.
see

``

since

1.0

example
````Merges two arrays, altering the first argument.
```
$.merge( [ 0, 1, 2 ], [ 2, 3, 4 ] )
```
example
````Merges two arrays, altering the first argument.
```
$.merge( [ 3, 2, 1 ], [ 4, 3, 2 ] )
```
example
````Merges two arrays, but uses a copy, so the original isn't altered.
```
var first = [ "a", "b", "c" ];
var second = [ "d", "e", "f" ];
$.merge( $.merge( [], first ), second );
```
Type parameters
- T
- U
Parameters
- first: ArrayLike<T>
  
  The first array-like object to merge, the elements of second added.
- second: ArrayLike<U>
  
  The second array-like object to merge into the first, unaltered.
Returns Array<T | U>

noConflict

noConflict(removeAll?: boolean): this

Relinquish jQuery's control of the $ variable.

see

since

1.0

example

````Map the original object that was referenced by $ back to $.

jQuery.noConflict();
// Do something with jQuery
jQuery( "div p" ).hide();
// Do something with another library's $()
$( "content" ).style.display = "none";

example

````Revert the $ alias and then create and execute a function to provide the $ as a jQuery alias inside the function's scope. Inside the function the original $ object is not available. This works well for most plugins that don't rely on any other library.

jQuery.noConflict();
(function( $ ) {
$(function() {
// More code using $ as alias to jQuery
});
})(jQuery);

// Other code using $ as an alias to the other library

example

````Create a different alias instead of jQuery to use in the rest of the script.

var j = jQuery.noConflict();

// Do something with jQuery
j( "div p" ).hide();

// Do something with another library's $()
$( "content" ).style.display = "none";

example

````Completely move jQuery to a new namespace in another object.

var dom = {};
dom.query = jQuery.noConflict( true );

example

````Load two versions of jQuery (not recommended). Then, restore jQuery's globally scoped variables to the first loaded jQuery.

<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery.noConflict demo</title>
<script src="https://code.jquery.com/jquery-3.3.1.js"></script>
</head>
<body>

<div id="log">
<h3>Before $.noConflict(true)</h3>
</div>
<script src="https://code.jquery.com/jquery-1.6.2.js"></script>

<script>
var $log = $( "#log" );

$log.append( "2nd loaded jQuery version ($): " + $.fn.jquery + "<br>" );

// Restore globally scoped jQuery variables to the first version loaded
// (the newer version)

jq162 = jQuery.noConflict( true );

$log.append( "<h3>After $.noConflict(true)</h3>" );
$log.append( "1st loaded jQuery version ($): " + $.fn.jquery + "<br>" );
$log.append( "2nd loaded jQuery version (jq162): " + jq162.fn.jquery + "<br>" );
</script>

</body>
</html>

Parameters

Optional removeAll: boolean

A Boolean indicating whether to remove all jQuery variables from the global scope (including jQuery itself).

Returns this

nodeName

nodeName(elem: Node, name: string): boolean

deprecated

Deprecated since 3.2.

Cause: This public but never-documented method has been deprecated as of jQuery 3.2.0.

Solution: Replace calls such as jQuery.nodeName( elem, "div" ) with a test such as elem.nodeName.toLowerCase() === "div".

Parameters
- elem: Node
- name: string
Returns boolean

noop

noop(): undefined

An empty function.

see

``

since

1.4

Returns undefined

now

now(): number

Return a number representing the current time.

see

``

since

1.4.3

deprecated

Deprecated since 3.3. Use `{@link DateConstructor.now Date.now}`.

Returns number

param

param(obj: any[] | PlainObject | JQuery, traditional?: boolean): string

Create a serialized representation of an array, a plain object, or a jQuery object suitable for use in a URL query string or Ajax request. In case a jQuery object is passed, it should contain input elements with name/value properties.

see

since

1.2

since

1.4

example

````Serialize a key/value object.

<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery.param demo</title>
<style>
div {
color: red;
}
</style>
<script src="https://code.jquery.com/jquery-3.3.1.js"></script>
</head>
<body>

<div id="results"></div>

<script>
var params = { width:1680, height:1050 };
var str = jQuery.param( params );
$( "#results" ).text( str );
</script>

</body>
</html>

example

````Serialize a few complex objects

<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery.param demo</title>
<style>
div {
color: red;
}
</style>
<script src="https://code.jquery.com/jquery-3.3.1.js"></script>
</head>
<body>

<script>
// <=1.3.2:
$.param({ a: [ 2, 3, 4 ] }); // "a=2&a=3&a=4"
// >=1.4:
$.param({ a: [ 2, 3, 4 ] }); // "a[]=2&a[]=3&a[]=4"

// <=1.3.2:
$.param({ a: { b: 1, c: 2 }, d: [ 3, 4, { e: 5 } ] });
// "a=[object+Object]&d=3&d=4&d=[object+Object]"

// >=1.4:
$.param({ a: { b: 1, c: 2 }, d: [ 3, 4, { e: 5 } ] });
// "a[b]=1&a[c]=2&d[]=3&d[]=4&d[2][e]=5"
</script>

</body>
</html>

Parameters

obj: any[] | PlainObject | JQuery

An array, a plain object, or a jQuery object to serialize.
Optional traditional: boolean

A Boolean indicating whether to perform a traditional "shallow" serialization.

Returns string

parseHTML

parseHTML(data: string, context: Document | null | undefined, keepScripts: boolean): Node[]
parseHTML(data: string, context_keepScripts?: Document | null | boolean): Node[]

Parses a string into an array of DOM nodes.

see

``

since

1.8

Parameters
- data: string
  
  HTML string to be parsed
- context: Document | null | undefined
  
  Document element to serve as the context in which the HTML fragment will be created
- keepScripts: boolean
  
  A Boolean indicating whether to include scripts passed in the HTML string
Returns Node[]

Parses a string into an array of DOM nodes.

see

since

1.8

example

````Create an array of DOM nodes using an HTML string and insert it into a div.

<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery.parseHTML demo</title>
<script src="https://code.jquery.com/jquery-3.3.1.js"></script>
</head>
<body>

<div id="log">
<h3>Content:</h3>
</div>

<script>
var $log = $( "#log" ),
str = "hello, <b>my name is</b> jQuery.",
html = $.parseHTML( str ),
nodeNames = [];

// Append the parsed HTML
$log.append( html );

// Gather the parsed HTML's node names
$.each( html, function( i, el ) {
nodeNames[ i ] = "<li>" + el.nodeName + "</li>";
});

// Insert the node names
$log.append( "<h3>Node Names:</h3>" );
$( "<ol></ol>" )
.append( nodeNames.join( "" ) )
.appendTo( $log );
</script>

</body>
</html>

Parameters

data: string

HTML string to be parsed
Optional context_keepScripts: Document | null | boolean
@param context_keepScripts
- context — Document element to serve as the context in which the HTML fragment will be created
- keepScripts — A Boolean indicating whether to include scripts passed in the HTML string

Returns Node[]

parseJSON

parseJSON(json: string): any

Takes a well-formed JSON string and returns the resulting JavaScript value.
see

``

since

1.4.1

deprecated

Deprecated since 3.0. Use `{@link JSON.parse }`.

Cause: The jQuery.parseJSON method in recent jQuery is identical to the native JSON.parse. As of jQuery 3.0 jQuery.parseJSON is deprecated.

Solution: Replace any use of jQuery.parseJSON with JSON.parse.

example
````Parse a JSON string.
```
var obj = jQuery.parseJSON( '{ "name": "John" }' );
alert( obj.name === "John" );
```
Parameters
- json: string
  
  The JSON string to parse.
Returns any

parseXML

parseXML(data: string): XMLDocument

Parses a string into an XML document.

see

since

1.5

example

````Create a jQuery object using an XML string and obtain the value of the title node.

<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery.parseXML demo</title>
<script src="https://code.jquery.com/jquery-3.3.1.js"></script>
</head>
<body>

<p id="someElement"></p>
<p id="anotherElement"></p>

<script>
var xml = "<rss version='2.0'><channel><title>RSS Title</title></channel></rss>",
xmlDoc = $.parseXML( xml ),
$xml = $( xmlDoc ),
$title = $xml.find( "title" );

// Append "RSS Title" to #someElement
$( "#someElement" ).append( $title.text() );

// Change the title to "XML Title"
$title.text( "XML Title" );

// Append "XML Title" to #anotherElement
$( "#anotherElement" ).append( $title.text() );
</script>

</body>
</html>

Parameters

data: string

a well-formed XML string to be parsed

Returns XMLDocument

post

post(url: string, data: PlainObject | string, success: DoneCallback | null, dataType?: string): jqXHR
post(url: string, success: DoneCallback | null, dataType: string): jqXHR
post(url: string, success_data: DoneCallback | PlainObject | string): jqXHR
post(url_settings?: string | UrlAjaxSettings): jqXHR

Load data from the server using a HTTP POST request.
see

``

since

1.0

example
````Post to the test.php page and get content which has been returned in json format (<?php echo json_encode(array("name"=>"John","time"=>"2pm")); ?>).
```
$.post( "test.php", { func: "getNameAndTime" }, function( data ) {
console.log( data.name ); // John
console.log( data.time ); // 2pm
}, "json");
```
Parameters
- url: string
  
  A string containing the URL to which the request is sent.
- data: PlainObject | string
  
  A plain object or string that is sent to the server with the request.
- success: DoneCallback | null
  
  A callback function that is executed if the request succeeds. Required if dataType is provided, but can be null in that case.
- Optional dataType: string
  
  The type of data expected from the server. Default: Intelligent Guess (xml, json, script, text, html).
Returns jqXHR
Load data from the server using a HTTP POST request.

see

``

since

1.0

Parameters
- url: string
  
  A string containing the URL to which the request is sent.
- success: DoneCallback | null
  
  A callback function that is executed if the request succeeds. Required if dataType is provided, but can be null in that case.
- dataType: string
  
  The type of data expected from the server. Default: Intelligent Guess (xml, json, script, text, html).
Returns jqXHR

Load data from the server using a HTTP POST request.

see

since

1.0

example

````Request the test.php page and send some additional data along (while still ignoring the return results).

$.post( "test.php", { name: "John", time: "2pm" } );

example

````Pass arrays of data to the server (while still ignoring the return results).

$.post( "test.php", { 'choices[]': [ "Jon", "Susan" ] } );

example

````Send form data using Ajax requests

$.post( "test.php", $( "#testform" ).serialize() );

example

````Alert the results from requesting test.php (HTML or XML, depending on what was returned).

$.post( "test.php", function( data ) {
alert( "Data Loaded: " + data );
});

example

````Alert the results from requesting test.php with an additional payload of data (HTML or XML, depending on what was returned).

$.post( "test.php", { name: "John", time: "2pm" })
.done(function( data ) {
alert( "Data Loaded: " + data );
});

example

````Post a form using Ajax and put results in a div

<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery.post demo</title>
<script src="https://code.jquery.com/jquery-3.3.1.js"></script>
</head>
<body>

<form action="/" id="searchForm">
<input type="text" name="s" placeholder="Search...">
<input type="submit" value="Search">
</form>
<!-- the result of the search will be rendered inside this div -->
<div id="result"></div>

<script>
// Attach a submit handler to the form
$( "#searchForm" ).submit(function( event ) {

// Stop form from submitting normally
event.preventDefault();

// Get some values from elements on the page:
var $form = $( this ),
term = $form.find( "input[name='s']" ).val(),
url = $form.attr( "action" );

// Send the data using post
var posting = $.post( url, { s: term } );

// Put the results in a div
posting.done(function( data ) {
var content = $( data ).find( "#content" );
$( "#result" ).empty().append( content );
});
});
</script>

</body>
</html>

Parameters

url: string

A string containing the URL to which the request is sent.
success_data: DoneCallback | PlainObject | string
@param success_data
- success — A callback function that is executed if the request succeeds. Required if dataType is provided,
```
        but can be `null` in that case. <br>
```
- data — A plain object or string that is sent to the server with the request.

Returns jqXHR

Load data from the server using a HTTP POST request.
see

``

since

1.0

since

1.12

since

2.2

example
````Request the test.php page, but ignore the return results.
```
$.post( "test.php" );
```
Parameters
- Optional url_settings: string | UrlAjaxSettings
  @param url_settings
  - url — A string containing the URL to which the request is sent.
  - settings — A set of key/value pairs that configure the Ajax request. All properties except for url are optional.
```
         A default can be set for any option with \`<a href="_jquery_d_.jquerystatic.html#ajaxsetup">$.ajaxSetup()</a>\`. See \`<a href="https://api.jquery.com/jquery.ajax/#jQuery-ajax-settings" class="external">jQuery.ajax( settings )</a>\`
         for a complete list of all settings. Type will automatically be set to `POST`.
```
Returns jqXHR

proxy

proxy<TReturn, A, B, C, D, E, F, G>(funсtion: function, context: null | undefined, a: A, b: B, c: C, d: D, e: E, f: F, g: G): function
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proxy<TReturn, A>(funсtion: function, context: null | undefined, a: A): function
proxy<TReturn>(funсtion: function, context: null | undefined): function
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proxy<TReturn, A, B, T>(funсtion: function, context: null | undefined, a: A, b: B): function
proxy<TReturn, A, T>(funсtion: function, context: null | undefined, a: A): function
proxy<TReturn, T>(funсtion: function, context: null | undefined): function
proxy<TReturn, A, B, C, D, E, F, G, T, U>(funсtion: function, context: null | undefined, a: A, b: B, c: C, d: D, e: E, f: F, g: G): function
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proxy<TReturn, A, B, T, U>(funсtion: function, context: null | undefined, a: A, b: B): function
proxy<TReturn, A, T, U>(funсtion: function, context: null | undefined, a: A): function
proxy<TReturn, T, U>(funсtion: function, context: null | undefined): function
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proxy<TReturn, A, T, U, V>(funсtion: function, context: null | undefined, a: A): function
proxy<TReturn, T, U, V>(funсtion: function, context: null | undefined): function
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proxy<TReturn, A, T, U, V, W>(funсtion: function, context: null | undefined, a: A): function
proxy<TReturn, T, U, V, W>(funсtion: function, context: null | undefined): function
proxy<TReturn, A, B, C, D, E, F, G, T, U, V, W, X>(funсtion: function, context: null | undefined, a: A, b: B, c: C, d: D, e: E, f: F, g: G): function
proxy<TReturn, A, B, C, D, E, F, T, U, V, W, X>(funсtion: function, context: null | undefined, a: A, b: B, c: C, d: D, e: E, f: F): function
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proxy<TReturn, T, U, V, W, X>(funсtion: function, context: null | undefined): function
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proxy<TReturn, A, B, T, U, V, W, X, Y>(funсtion: function, context: null | undefined, a: A, b: B): function
proxy<TReturn, A, T, U, V, W, X, Y>(funсtion: function, context: null | undefined, a: A): function
proxy<TReturn, T, U, V, W, X, Y>(funсtion: function, context: null | undefined): function
proxy<TReturn, A, B, C, D, E, F, G, T, U, V, W, X, Y, Z>(funсtion: function, context: null | undefined, a: A, b: B, c: C, d: D, e: E, f: F, g: G): function
proxy<TReturn, A, B, C, D, E, F, T, U, V, W, X, Y, Z>(funсtion: function, context: null | undefined, a: A, b: B, c: C, d: D, e: E, f: F): function
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proxy<TReturn, A, B, C, D, T, U, V, W, X, Y, Z>(funсtion: function, context: null | undefined, a: A, b: B, c: C, d: D): function
proxy<TReturn, A, B, C, T, U, V, W, X, Y, Z>(funсtion: function, context: null | undefined, a: A, b: B, c: C): function
proxy<TReturn, A, B, T, U, V, W, X, Y, Z>(funсtion: function, context: null | undefined, a: A, b: B): function
proxy<TReturn, A, T, U, V, W, X, Y, Z>(funсtion: function, context: null | undefined, a: A): function
proxy<TReturn, T, U, V, W, X, Y, Z>(funсtion: function, context: null | undefined): function
proxy<TReturn>(funсtion: function, context: null | undefined, ...additionalArguments: any[]): function
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proxy<TContext, TReturn, A, B, C, D>(funсtion: function, context: TContext, a: A, b: B, c: C, d: D): function
proxy<TContext, TReturn, A, B, C>(funсtion: function, context: TContext, a: A, b: B, c: C): function
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proxy<TContext, TReturn, A>(funсtion: function, context: TContext, a: A): function
proxy<TContext, TReturn>(funсtion: function, context: TContext): function
proxy<TContext, TReturn, A, B, C, D, E, F, G, T>(funсtion: function, context: TContext, a: A, b: B, c: C, d: D, e: E, f: F, g: G): function
proxy<TContext, TReturn, A, B, C, D, E, F, T>(funсtion: function, context: TContext, a: A, b: B, c: C, d: D, e: E, f: F): function
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proxy<TContext, TReturn, A, B, C, T>(funсtion: function, context: TContext, a: A, b: B, c: C): function
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proxy<TContext, TReturn, A, T>(funсtion: function, context: TContext, a: A): function
proxy<TContext, TReturn, T>(funсtion: function, context: TContext): function
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proxy<TContext, TReturn, A, B, C, D, E, T, U>(funсtion: function, context: TContext, a: A, b: B, c: C, d: D, e: E): function
proxy<TContext, TReturn, A, B, C, D, T, U>(funсtion: function, context: TContext, a: A, b: B, c: C, d: D): function
proxy<TContext, TReturn, A, B, C, T, U>(funсtion: function, context: TContext, a: A, b: B, c: C): function
proxy<TContext, TReturn, A, B, T, U>(funсtion: function, context: TContext, a: A, b: B): function
proxy<TContext, TReturn, A, T, U>(funсtion: function, context: TContext, a: A): function
proxy<TContext, TReturn, T, U>(funсtion: function, context: TContext): function
proxy<TContext, TReturn, A, B, C, D, E, F, G, T, U, V>(funсtion: function, context: TContext, a: A, b: B, c: C, d: D, e: E, f: F, g: G): function
proxy<TContext, TReturn, A, B, C, D, E, F, T, U, V>(funсtion: function, context: TContext, a: A, b: B, c: C, d: D, e: E, f: F): function
proxy<TContext, TReturn, A, B, C, D, E, T, U, V>(funсtion: function, context: TContext, a: A, b: B, c: C, d: D, e: E): function
proxy<TContext, TReturn, A, B, C, D, T, U, V>(funсtion: function, context: TContext, a: A, b: B, c: C, d: D): function
proxy<TContext, TReturn, A, B, C, T, U, V>(funсtion: function, context: TContext, a: A, b: B, c: C): function
proxy<TContext, TReturn, A, B, T, U, V>(funсtion: function, context: TContext, a: A, b: B): function
proxy<TContext, TReturn, A, T, U, V>(funсtion: function, context: TContext, a: A): function
proxy<TContext, TReturn, T, U, V>(funсtion: function, context: TContext): function
proxy<TContext, TReturn, A, B, C, D, E, F, G, T, U, V, W>(funсtion: function, context: TContext, a: A, b: B, c: C, d: D, e: E, f: F, g: G): function
proxy<TContext, TReturn, A, B, C, D, E, F, T, U, V, W>(funсtion: function, context: TContext, a: A, b: B, c: C, d: D, e: E, f: F): function
proxy<TContext, TReturn, A, B, C, D, E, T, U, V, W>(funсtion: function, context: TContext, a: A, b: B, c: C, d: D, e: E): function
proxy<TContext, TReturn, A, B, C, D, T, U, V, W>(funсtion: function, context: TContext, a: A, b: B, c: C, d: D): function
proxy<TContext, TReturn, A, B, C, T, U, V, W>(funсtion: function, context: TContext, a: A, b: B, c: C): function
proxy<TContext, TReturn, A, B, T, U, V, W>(funсtion: function, context: TContext, a: A, b: B): function
proxy<TContext, TReturn, A, T, U, V, W>(funсtion: function, context: TContext, a: A): function
proxy<TContext, TReturn, T, U, V, W>(funсtion: function, context: TContext): function
proxy<TContext, TReturn, A, B, C, D, E, F, G, T, U, V, W, X>(funсtion: function, context: TContext, a: A, b: B, c: C, d: D, e: E, f: F, g: G): function
proxy<TContext, TReturn, A, B, C, D, E, F, T, U, V, W, X>(funсtion: function, context: TContext, a: A, b: B, c: C, d: D, e: E, f: F): function
proxy<TContext, TReturn, A, B, C, D, E, T, U, V, W, X>(funсtion: function, context: TContext, a: A, b: B, c: C, d: D, e: E): function
proxy<TContext, TReturn, A, B, C, D, T, U, V, W, X>(funсtion: function, context: TContext, a: A, b: B, c: C, d: D): function
proxy<TContext, TReturn, A, B, C, T, U, V, W, X>(funсtion: function, context: TContext, a: A, b: B, c: C): function
proxy<TContext, TReturn, A, B, T, U, V, W, X>(funсtion: function, context: TContext, a: A, b: B): function
proxy<TContext, TReturn, A, T, U, V, W, X>(funсtion: function, context: TContext, a: A): function
proxy<TContext, TReturn, T, U, V, W, X>(funсtion: function, context: TContext): function
proxy<TContext, TReturn, A, B, C, D, E, F, G, T, U, V, W, X, Y>(funсtion: function, context: TContext, a: A, b: B, c: C, d: D, e: E, f: F, g: G): function
proxy<TContext, TReturn, A, B, C, D, E, F, T, U, V, W, X, Y>(funсtion: function, context: TContext, a: A, b: B, c: C, d: D, e: E, f: F): function
proxy<TContext, TReturn, A, B, C, D, E, T, U, V, W, X, Y>(funсtion: function, context: TContext, a: A, b: B, c: C, d: D, e: E): function
proxy<TContext, TReturn, A, B, C, D, T, U, V, W, X, Y>(funсtion: function, context: TContext, a: A, b: B, c: C, d: D): function
proxy<TContext, TReturn, A, B, C, T, U, V, W, X, Y>(funсtion: function, context: TContext, a: A, b: B, c: C): function
proxy<TContext, TReturn, A, B, T, U, V, W, X, Y>(funсtion: function, context: TContext, a: A, b: B): function
proxy<TContext, TReturn, A, T, U, V, W, X, Y>(funсtion: function, context: TContext, a: A): function
proxy<TContext, TReturn, T, U, V, W, X, Y>(funсtion: function, context: TContext): function
proxy<TContext, TReturn, A, B, C, D, E, F, G, T, U, V, W, X, Y, Z>(funсtion: function, context: TContext, a: A, b: B, c: C, d: D, e: E, f: F, g: G): function
proxy<TContext, TReturn, A, B, C, D, E, F, T, U, V, W, X, Y, Z>(funсtion: function, context: TContext, a: A, b: B, c: C, d: D, e: E, f: F): function
proxy<TContext, TReturn, A, B, C, D, E, T, U, V, W, X, Y, Z>(funсtion: function, context: TContext, a: A, b: B, c: C, d: D, e: E): function
proxy<TContext, TReturn, A, B, C, D, T, U, V, W, X, Y, Z>(funсtion: function, context: TContext, a: A, b: B, c: C, d: D): function
proxy<TContext, TReturn, A, B, C, T, U, V, W, X, Y, Z>(funсtion: function, context: TContext, a: A, b: B, c: C): function
proxy<TContext, TReturn, A, B, T, U, V, W, X, Y, Z>(funсtion: function, context: TContext, a: A, b: B): function
proxy<TContext, TReturn, A, T, U, V, W, X, Y, Z>(funсtion: function, context: TContext, a: A): function
proxy<TContext, TReturn, T, U, V, W, X, Y, Z>(funсtion: function, context: TContext): function
proxy<TContext, TReturn>(funсtion: function, context: TContext, ...additionalArguments: any[]): function
proxy<TContext>(context: TContext, name: keyof TContext, ...additionalArguments: any[]): function

Takes a function and returns a new one that will always have a particular context.

see

``

since

1.9

deprecated

Deprecated since 3.3. Use `{@link Function#bind }`.

Type parameters
- TReturn
- A
- B
- C
- D
- E
- F
- G
Parameters
- funсtion: function
  
  The function whose context will be changed.
  - - (a: A, b: B, c: C, d: D, e: E, f: F, g: G): TReturn
    - Parameters
      - a: A
      - b: B
      - c: C
      - d: D
      - e: E
      - f: F
      - g: G
      Returns TReturn
- context: null | undefined
  
  The object to which the context (this) of the function should be set.
- a: A
  
  An argument to be passed to the function referenced in the function argument.
- b: B
  
  An argument to be passed to the function referenced in the function argument.
- c: C
  
  An argument to be passed to the function referenced in the function argument.
- d: D
  
  An argument to be passed to the function referenced in the function argument.
- e: E
  
  An argument to be passed to the function referenced in the function argument.
- f: F
  
  An argument to be passed to the function referenced in the function argument.
- g: G
  
  An argument to be passed to the function referenced in the function argument.
Returns function
- - (): TReturn
  - Returns TReturn
Takes a function and returns a new one that will always have a particular context.

see

``

since

1.9

deprecated

Deprecated since 3.3. Use `{@link Function#bind }`.

Type parameters
- TReturn
- A
- B
- C
- D
- E
- F
Parameters
- funсtion: function
  
  The function whose context will be changed.
  - - (a: A, b: B, c: C, d: D, e: E, f: F): TReturn
    - Parameters
      - a: A
      - b: B
      - c: C
      - d: D
      - e: E
      - f: F
      Returns TReturn
- context: null | undefined
  
  The object to which the context (this) of the function should be set.
- a: A
  
  An argument to be passed to the function referenced in the function argument.
- b: B
  
  An argument to be passed to the function referenced in the function argument.
- c: C
  
  An argument to be passed to the function referenced in the function argument.
- d: D
  
  An argument to be passed to the function referenced in the function argument.
- e: E
  
  An argument to be passed to the function referenced in the function argument.
- f: F
  
  An argument to be passed to the function referenced in the function argument.
Returns function
- - (): TReturn
  - Returns TReturn
Takes a function and returns a new one that will always have a particular context.

see

``

since

1.9

deprecated

Deprecated since 3.3. Use `{@link Function#bind }`.

Type parameters
- TReturn
- A
- B
- C
- D
- E
Parameters
- funсtion: function
  
  The function whose context will be changed.
  - - (a: A, b: B, c: C, d: D, e: E): TReturn
    - Parameters
      - a: A
      - b: B
      - c: C
      - d: D
      - e: E
      Returns TReturn
- context: null | undefined
  
  The object to which the context (this) of the function should be set.
- a: A
  
  An argument to be passed to the function referenced in the function argument.
- b: B
  
  An argument to be passed to the function referenced in the function argument.
- c: C
  
  An argument to be passed to the function referenced in the function argument.
- d: D
  
  An argument to be passed to the function referenced in the function argument.
- e: E
  
  An argument to be passed to the function referenced in the function argument.
Returns function
- - (): TReturn
  - Returns TReturn
Takes a function and returns a new one that will always have a particular context.

see

``

since

1.9

deprecated

Deprecated since 3.3. Use `{@link Function#bind }`.

Type parameters
- TReturn
- A
- B
- C
- D
Parameters
- funсtion: function
  
  The function whose context will be changed.
  - - (a: A, b: B, c: C, d: D): TReturn
    - Parameters
      - a: A
      - b: B
      - c: C
      - d: D
      Returns TReturn
- context: null | undefined
  
  The object to which the context (this) of the function should be set.
- a: A
  
  An argument to be passed to the function referenced in the function argument.
- b: B
  
  An argument to be passed to the function referenced in the function argument.
- c: C
  
  An argument to be passed to the function referenced in the function argument.
- d: D
  
  An argument to be passed to the function referenced in the function argument.
Returns function
- - (): TReturn
  - Returns TReturn
Takes a function and returns a new one that will always have a particular context.

see

``

since

1.9

deprecated

Deprecated since 3.3. Use `{@link Function#bind }`.

Type parameters
- TReturn
- A
- B
- C
Parameters
- funсtion: function
  
  The function whose context will be changed.
  - - (a: A, b: B, c: C): TReturn
    - Parameters
      - a: A
      - b: B
      - c: C
      Returns TReturn
- context: null | undefined
  
  The object to which the context (this) of the function should be set.
- a: A
  
  An argument to be passed to the function referenced in the function argument.
- b: B
  
  An argument to be passed to the function referenced in the function argument.
- c: C
  
  An argument to be passed to the function referenced in the function argument.
Returns function
- - (): TReturn
  - Returns TReturn
Takes a function and returns a new one that will always have a particular context.

see

``

since

1.9

deprecated

Deprecated since 3.3. Use `{@link Function#bind }`.

Type parameters
- TReturn
- A
- B
Parameters
- funсtion: function
  
  The function whose context will be changed.
  - - (a: A, b: B): TReturn
    - Parameters
      - a: A
      - b: B
      Returns TReturn
- context: null | undefined
  
  The object to which the context (this) of the function should be set.
- a: A
  
  An argument to be passed to the function referenced in the function argument.
- b: B
  
  An argument to be passed to the function referenced in the function argument.
Returns function
- - (): TReturn
  - Returns TReturn
Takes a function and returns a new one that will always have a particular context.

see

``

since

1.9

deprecated

Deprecated since 3.3. Use `{@link Function#bind }`.

Type parameters
- TReturn
- A
Parameters
- funсtion: function
  
  The function whose context will be changed.
  - - (a: A): TReturn
    - Parameters
      - a: A
      Returns TReturn
- context: null | undefined
  
  The object to which the context (this) of the function should be set.
- a: A
  
  An argument to be passed to the function referenced in the function argument.
Returns function
- - (): TReturn
  - Returns TReturn
Takes a function and returns a new one that will always have a particular context.

see

``

since

1.9

deprecated

Deprecated since 3.3. Use `{@link Function#bind }`.

Type parameters
- TReturn
Parameters
- funсtion: function
  
  The function whose context will be changed.
  - - (): TReturn
    - Returns TReturn
- context: null | undefined
  
  The object to which the context (this) of the function should be set.
Returns function
- - (): TReturn
  - Returns TReturn
Takes a function and returns a new one that will always have a particular context.

see

``

since

1.9

deprecated

Deprecated since 3.3. Use `{@link Function#bind }`.

Type parameters
- TReturn
- A
- B
- C
- D
- E
- F
- G
- T
Parameters
- funсtion: function
  
  The function whose context will be changed.
  - - (a: A, b: B, c: C, d: D, e: E, f: F, g: G, t: T): TReturn
    - Parameters
      - a: A
      - b: B
      - c: C
      - d: D
      - e: E
      - f: F
      - g: G
      - t: T
      Returns TReturn
- context: null | undefined
  
  The object to which the context (this) of the function should be set.
- a: A
  
  An argument to be passed to the function referenced in the function argument.
- b: B
  
  An argument to be passed to the function referenced in the function argument.
- c: C
  
  An argument to be passed to the function referenced in the function argument.
- d: D
  
  An argument to be passed to the function referenced in the function argument.
- e: E
  
  An argument to be passed to the function referenced in the function argument.
- f: F
  
  An argument to be passed to the function referenced in the function argument.
- g: G
  
  An argument to be passed to the function referenced in the function argument.
Returns function
- - (t: T): TReturn
  - Parameters
    - t: T
    Returns TReturn
Takes a function and returns a new one that will always have a particular context.

see

``

since

1.9

deprecated

Deprecated since 3.3. Use `{@link Function#bind }`.

Type parameters
- TReturn
- A
- B
- C
- D
- E
- F
- T
Parameters
- funсtion: function
  
  The function whose context will be changed.
  - - (a: A, b: B, c: C, d: D, e: E, f: F, t: T): TReturn
    - Parameters
      - a: A
      - b: B
      - c: C
      - d: D
      - e: E
      - f: F
      - t: T
      Returns TReturn
- context: null | undefined
  
  The object to which the context (this) of the function should be set.
- a: A
  
  An argument to be passed to the function referenced in the function argument.
- b: B
  
  An argument to be passed to the function referenced in the function argument.
- c: C
  
  An argument to be passed to the function referenced in the function argument.
- d: D
  
  An argument to be passed to the function referenced in the function argument.
- e: E
  
  An argument to be passed to the function referenced in the function argument.
- f: F
  
  An argument to be passed to the function referenced in the function argument.
Returns function
- - (t: T): TReturn
  - Parameters
    - t: T
    Returns TReturn
Takes a function and returns a new one that will always have a particular context.

see

``

since

1.9

deprecated

Deprecated since 3.3. Use `{@link Function#bind }`.

Type parameters
- TReturn
- A
- B
- C
- D
- E
- T
Parameters
- funсtion: function
  
  The function whose context will be changed.
  - - (a: A, b: B, c: C, d: D, e: E, t: T): TReturn
    - Parameters
      - a: A
      - b: B
      - c: C
      - d: D
      - e: E
      - t: T
      Returns TReturn
- context: null | undefined
  
  The object to which the context (this) of the function should be set.
- a: A
  
  An argument to be passed to the function referenced in the function argument.
- b: B
  
  An argument to be passed to the function referenced in the function argument.
- c: C
  
  An argument to be passed to the function referenced in the function argument.
- d: D
  
  An argument to be passed to the function referenced in the function argument.
- e: E
  
  An argument to be passed to the function referenced in the function argument.
Returns function
- - (t: T): TReturn
  - Parameters
    - t: T
    Returns TReturn
Takes a function and returns a new one that will always have a particular context.

see

``

since

1.9

deprecated

Deprecated since 3.3. Use `{@link Function#bind }`.

Type parameters
- TReturn
- A
- B
- C
- D
- T
Parameters
- funсtion: function
  
  The function whose context will be changed.
  - - (a: A, b: B, c: C, d: D, t: T): TReturn
    - Parameters
      - a: A
      - b: B
      - c: C
      - d: D
      - t: T
      Returns TReturn
- context: null | undefined
  
  The object to which the context (this) of the function should be set.
- a: A
  
  An argument to be passed to the function referenced in the function argument.
- b: B
  
  An argument to be passed to the function referenced in the function argument.
- c: C
  
  An argument to be passed to the function referenced in the function argument.
- d: D
  
  An argument to be passed to the function referenced in the function argument.
Returns function
- - (t: T): TReturn
  - Parameters
    - t: T
    Returns TReturn
Takes a function and returns a new one that will always have a particular context.

see

``

since

1.9

deprecated

Deprecated since 3.3. Use `{@link Function#bind }`.

Type parameters
- TReturn
- A
- B
- C
- T
Parameters
- funсtion: function
  
  The function whose context will be changed.
  - - (a: A, b: B, c: C, t: T): TReturn
    - Parameters
      - a: A
      - b: B
      - c: C
      - t: T
      Returns TReturn
- context: null | undefined
  
  The object to which the context (this) of the function should be set.
- a: A
  
  An argument to be passed to the function referenced in the function argument.
- b: B
  
  An argument to be passed to the function referenced in the function argument.
- c: C
  
  An argument to be passed to the function referenced in the function argument.
Returns function
- - (t: T): TReturn
  - Parameters
    - t: T
    Returns TReturn
Takes a function and returns a new one that will always have a particular context.

see

``

since

1.9

deprecated

Deprecated since 3.3. Use `{@link Function#bind }`.

Type parameters
- TReturn
- A
- B
- T
Parameters
- funсtion: function
  
  The function whose context will be changed.
  - - (a: A, b: B, t: T): TReturn
    - Parameters
      - a: A
      - b: B
      - t: T
      Returns TReturn
- context: null | undefined
  
  The object to which the context (this) of the function should be set.
- a: A
  
  An argument to be passed to the function referenced in the function argument.
- b: B
  
  An argument to be passed to the function referenced in the function argument.
Returns function
- - (t: T): TReturn
  - Parameters
    - t: T
    Returns TReturn
Takes a function and returns a new one that will always have a particular context.

see

``

since

1.9

deprecated

Deprecated since 3.3. Use `{@link Function#bind }`.

Type parameters
- TReturn
- A
- T
Parameters
- funсtion: function
  
  The function whose context will be changed.
  - - (a: A, t: T): TReturn
    - Parameters
      - a: A
      - t: T
      Returns TReturn
- context: null | undefined
  
  The object to which the context (this) of the function should be set.
- a: A
  
  An argument to be passed to the function referenced in the function argument.
Returns function
- - (t: T): TReturn
  - Parameters
    - t: T
    Returns TReturn
Takes a function and returns a new one that will always have a particular context.

see

``

since

1.9

deprecated

Deprecated since 3.3. Use `{@link Function#bind }`.

Type parameters
- TReturn
- T
Parameters
- funсtion: function
  
  The function whose context will be changed.
  - - (t: T): TReturn
    - Parameters
      - t: T
      Returns TReturn
- context: null | undefined
  
  The object to which the context (this) of the function should be set.
Returns function
- - (t: T): TReturn
  - Parameters
    - t: T
    Returns TReturn
Takes a function and returns a new one that will always have a particular context.

see

``

since

1.9

deprecated

Deprecated since 3.3. Use `{@link Function#bind }`.

Type parameters
- TReturn
- A
- B
- C
- D
- E
- F
- G
- T
- U
Parameters
- funсtion: function
  
  The function whose context will be changed.
  - - (a: A, b: B, c: C, d: D, e: E, f: F, g: G, t: T, u: U): TReturn
    - Parameters
      - a: A
      - b: B
      - c: C
      - d: D
      - e: E
      - f: F
      - g: G
      - t: T
      - u: U
      Returns TReturn
- context: null | undefined
  
  The object to which the context (this) of the function should be set.
- a: A
  
  An argument to be passed to the function referenced in the function argument.
- b: B
  
  An argument to be passed to the function referenced in the function argument.
- c: C
  
  An argument to be passed to the function referenced in the function argument.
- d: D
  
  An argument to be passed to the function referenced in the function argument.
- e: E
  
  An argument to be passed to the function referenced in the function argument.
- f: F
  
  An argument to be passed to the function referenced in the function argument.
- g: G
  
  An argument to be passed to the function referenced in the function argument.
Returns function
- - (t: T, u: U): TReturn
  - Parameters
    - t: T
    - u: U
    Returns TReturn
Takes a function and returns a new one that will always have a particular context.

see

``

since

1.9

deprecated

Deprecated since 3.3. Use `{@link Function#bind }`.

Type parameters
- TReturn
- A
- B
- C
- D
- E
- F
- T
- U
Parameters
- funсtion: function
  
  The function whose context will be changed.
  - - (a: A, b: B, c: C, d: D, e: E, f: F, t: T, u: U): TReturn
    - Parameters
      - a: A
      - b: B
      - c: C
      - d: D
      - e: E
      - f: F
      - t: T
      - u: U
      Returns TReturn
- context: null | undefined
  
  The object to which the context (this) of the function should be set.
- a: A
  
  An argument to be passed to the function referenced in the function argument.
- b: B
  
  An argument to be passed to the function referenced in the function argument.
- c: C
  
  An argument to be passed to the function referenced in the function argument.
- d: D
  
  An argument to be passed to the function referenced in the function argument.
- e: E
  
  An argument to be passed to the function referenced in the function argument.
- f: F
  
  An argument to be passed to the function referenced in the function argument.
Returns function
- - (t: T, u: U): TReturn
  - Parameters
    - t: T
    - u: U
    Returns TReturn
Takes a function and returns a new one that will always have a particular context.

see

``

since

1.9

deprecated

Deprecated since 3.3. Use `{@link Function#bind }`.

Type parameters
- TReturn
- A
- B
- C
- D
- E
- T
- U
Parameters
- funсtion: function
  
  The function whose context will be changed.
  - - (a: A, b: B, c: C, d: D, e: E, t: T, u: U): TReturn
    - Parameters
      - a: A
      - b: B
      - c: C
      - d: D
      - e: E
      - t: T
      - u: U
      Returns TReturn
- context: null | undefined
  
  The object to which the context (this) of the function should be set.
- a: A
  
  An argument to be passed to the function referenced in the function argument.
- b: B
  
  An argument to be passed to the function referenced in the function argument.
- c: C
  
  An argument to be passed to the function referenced in the function argument.
- d: D
  
  An argument to be passed to the function referenced in the function argument.
- e: E
  
  An argument to be passed to the function referenced in the function argument.
Returns function
- - (t: T, u: U): TReturn
  - Parameters
    - t: T
    - u: U
    Returns TReturn
Takes a function and returns a new one that will always have a particular context.

see

``

since

1.9

deprecated

Deprecated since 3.3. Use `{@link Function#bind }`.

Type parameters
- TReturn
- A
- B
- C
- D
- T
- U
Parameters
- funсtion: function
  
  The function whose context will be changed.
  - - (a: A, b: B, c: C, d: D, t: T, u: U): TReturn
    - Parameters
      - a: A
      - b: B
      - c: C
      - d: D
      - t: T
      - u: U
      Returns TReturn
- context: null | undefined
  
  The object to which the context (this) of the function should be set.
- a: A
  
  An argument to be passed to the function referenced in the function argument.
- b: B
  
  An argument to be passed to the function referenced in the function argument.
- c: C
  
  An argument to be passed to the function referenced in the function argument.
- d: D
  
  An argument to be passed to the function referenced in the function argument.
Returns function
- - (t: T, u: U): TReturn
  - Parameters
    - t: T
    - u: U
    Returns TReturn
Takes a function and returns a new one that will always have a particular context.

see

``

since

1.9

deprecated

Deprecated since 3.3. Use `{@link Function#bind }`.

Type parameters
- TReturn
- A
- B
- C
- T
- U
Parameters
- funсtion: function
  
  The function whose context will be changed.
  - - (a: A, b: B, c: C, t: T, u: U): TReturn
    - Parameters
      - a: A
      - b: B
      - c: C
      - t: T
      - u: U
      Returns TReturn
- context: null | undefined
  
  The object to which the context (this) of the function should be set.
- a: A
  
  An argument to be passed to the function referenced in the function argument.
- b: B
  
  An argument to be passed to the function referenced in the function argument.
- c: C
  
  An argument to be passed to the function referenced in the function argument.
Returns function
- - (t: T, u: U): TReturn
  - Parameters
    - t: T
    - u: U
    Returns TReturn
Takes a function and returns a new one that will always have a particular context.

see

``

since

1.9

deprecated

Deprecated since 3.3. Use `{@link Function#bind }`.

Type parameters
- TReturn
- A
- B
- T
- U
Parameters
- funсtion: function
  
  The function whose context will be changed.
  - - (a: A, b: B, t: T, u: U): TReturn
    - Parameters
      - a: A
      - b: B
      - t: T
      - u: U
      Returns TReturn
- context: null | undefined
  
  The object to which the context (this) of the function should be set.
- a: A
  
  An argument to be passed to the function referenced in the function argument.
- b: B
  
  An argument to be passed to the function referenced in the function argument.
Returns function
- - (t: T, u: U): TReturn
  - Parameters
    - t: T
    - u: U
    Returns TReturn
Takes a function and returns a new one that will always have a particular context.

see

``

since

1.9

deprecated

Deprecated since 3.3. Use `{@link Function#bind }`.

Type parameters
- TReturn
- A
- T
- U
Parameters
- funсtion: function
  
  The function whose context will be changed.
  - - (a: A, t: T, u: U): TReturn
    - Parameters
      - a: A
      - t: T
      - u: U
      Returns TReturn
- context: null | undefined
  
  The object to which the context (this) of the function should be set.
- a: A
  
  An argument to be passed to the function referenced in the function argument.
Returns function
- - (t: T, u: U): TReturn
  - Parameters
    - t: T
    - u: U
    Returns TReturn
Takes a function and returns a new one that will always have a particular context.

see

``

since

1.9

deprecated

Deprecated since 3.3. Use `{@link Function#bind }`.

Type parameters
- TReturn
- T
- U
Parameters
- funсtion: function
  
  The function whose context will be changed.
  - - (t: T, u: U): TReturn
    - Parameters
      - t: T
      - u: U
      Returns TReturn
- context: null | undefined
  
  The object to which the context (this) of the function should be set.
Returns function
- - (t: T, u: U): TReturn
  - Parameters
    - t: T
    - u: U
    Returns TReturn
Takes a function and returns a new one that will always have a particular context.

see

``

since

1.9

deprecated

Deprecated since 3.3. Use `{@link Function#bind }`.

Type parameters
- TReturn
- A
- B
- C
- D
- E
- F
- G
- T
- U
- V
Parameters
- funсtion: function
  
  The function whose context will be changed.
  - - (a: A, b: B, c: C, d: D, e: E, f: F, g: G, t: T, u: U, v: V): TReturn
    - Parameters
      - a: A
      - b: B
      - c: C
      - d: D
      - e: E
      - f: F
      - g: G
      - t: T
      - u: U
      - v: V
      Returns TReturn
- context: null | undefined
  
  The object to which the context (this) of the function should be set.
- a: A
  
  An argument to be passed to the function referenced in the function argument.
- b: B
  
  An argument to be passed to the function referenced in the function argument.
- c: C
  
  An argument to be passed to the function referenced in the function argument.
- d: D
  
  An argument to be passed to the function referenced in the function argument.
- e: E
  
  An argument to be passed to the function referenced in the function argument.
- f: F
  
  An argument to be passed to the function referenced in the function argument.
- g: G
  
  An argument to be passed to the function referenced in the function argument.
Returns function
- - (t: T, u: U, v: V): TReturn
  - Parameters
    - t: T
    - u: U
    - v: V
    Returns TReturn
Takes a function and returns a new one that will always have a particular context.

see

``

since

1.9

deprecated

Deprecated since 3.3. Use `{@link Function#bind }`.

Type parameters
- TReturn
- A
- B
- C
- D
- E
- F
- T
- U
- V
Parameters
- funсtion: function
  
  The function whose context will be changed.
  - - (a: A, b: B, c: C, d: D, e: E, f: F, t: T, u: U, v: V): TReturn
    - Parameters
      - a: A
      - b: B
      - c: C
      - d: D
      - e: E
      - f: F
      - t: T
      - u: U
      - v: V
      Returns TReturn
- context: null | undefined
  
  The object to which the context (this) of the function should be set.
- a: A
  
  An argument to be passed to the function referenced in the function argument.
- b: B
  
  An argument to be passed to the function referenced in the function argument.
- c: C
  
  An argument to be passed to the function referenced in the function argument.
- d: D
  
  An argument to be passed to the function referenced in the function argument.
- e: E
  
  An argument to be passed to the function referenced in the function argument.
- f: F
  
  An argument to be passed to the function referenced in the function argument.
Returns function
- - (t: T, u: U, v: V): TReturn
  - Parameters
    - t: T
    - u: U
    - v: V
    Returns TReturn
Takes a function and returns a new one that will always have a particular context.

see

``

since

1.9

deprecated

Deprecated since 3.3. Use `{@link Function#bind }`.

Type parameters
- TReturn
- A
- B
- C
- D
- E
- T
- U
- V
Parameters
- funсtion: function
  
  The function whose context will be changed.
  - - (a: A, b: B, c: C, d: D, e: E, t: T, u: U, v: V): TReturn
    - Parameters
      - a: A
      - b: B
      - c: C
      - d: D
      - e: E
      - t: T
      - u: U
      - v: V
      Returns TReturn
- context: null | undefined
  
  The object to which the context (this) of the function should be set.
- a: A
  
  An argument to be passed to the function referenced in the function argument.
- b: B
  
  An argument to be passed to the function referenced in the function argument.
- c: C
  
  An argument to be passed to the function referenced in the function argument.
- d: D
  
  An argument to be passed to the function referenced in the function argument.
- e: E
  
  An argument to be passed to the function referenced in the function argument.
Returns function
- - (t: T, u: U, v: V): TReturn
  - Parameters
    - t: T
    - u: U
    - v: V
    Returns TReturn
Takes a function and returns a new one that will always have a particular context.

see

``

since

1.9

deprecated

Deprecated since 3.3. Use `{@link Function#bind }`.

Type parameters
- TReturn
- A
- B
- C
- D
- T
- U
- V
Parameters
- funсtion: function
  
  The function whose context will be changed.
  - - (a: A, b: B, c: C, d: D, t: T, u: U, v: V): TReturn
    - Parameters
      - a: A
      - b: B
      - c: C
      - d: D
      - t: T
      - u: U
      - v: V
      Returns TReturn
- context: null | undefined
  
  The object to which the context (this) of the function should be set.
- a: A
  
  An argument to be passed to the function referenced in the function argument.
- b: B
  
  An argument to be passed to the function referenced in the function argument.
- c: C
  
  An argument to be passed to the function referenced in the function argument.
- d: D
  
  An argument to be passed to the function referenced in the function argument.
Returns function
- - (t: T, u: U, v: V): TReturn
  - Parameters
    - t: T
    - u: U
    - v: V
    Returns TReturn
Takes a function and returns a new one that will always have a particular context.

see

``

since

1.9

deprecated

Deprecated since 3.3. Use `{@link Function#bind }`.

Type parameters
- TReturn
- A
- B
- C
- T
- U
- V
Parameters
- funсtion: function
  
  The function whose context will be changed.
  - - (a: A, b: B, c: C, t: T, u: U, v: V): TReturn
    - Parameters
      - a: A
      - b: B
      - c: C
      - t: T
      - u: U
      - v: V
      Returns TReturn
- context: null | undefined
  
  The object to which the context (this) of the function should be set.
- a: A
  
  An argument to be passed to the function referenced in the function argument.
- b: B
  
  An argument to be passed to the function referenced in the function argument.
- c: C
  
  An argument to be passed to the function referenced in the function argument.
Returns function
- - (t: T, u: U, v: V): TReturn
  - Parameters
    - t: T
    - u: U
    - v: V
    Returns TReturn
Takes a function and returns a new one that will always have a particular context.

see

``

since

1.9

deprecated

Deprecated since 3.3. Use `{@link Function#bind }`.

Type parameters
- TReturn
- A
- B
- T
- U
- V
Parameters
- funсtion: function
  
  The function whose context will be changed.
  - - (a: A, b: B, t: T, u: U, v: V): TReturn
    - Parameters
      - a: A
      - b: B
      - t: T
      - u: U
      - v: V
      Returns TReturn
- context: null | undefined
  
  The object to which the context (this) of the function should be set.
- a: A
  
  An argument to be passed to the function referenced in the function argument.
- b: B
  
  An argument to be passed to the function referenced in the function argument.
Returns function
- - (t: T, u: U, v: V): TReturn
  - Parameters
    - t: T
    - u: U
    - v: V
    Returns TReturn
Takes a function and returns a new one that will always have a particular context.

see

``

since

1.9

deprecated

Deprecated since 3.3. Use `{@link Function#bind }`.

Type parameters
- TReturn
- A
- T
- U
- V
Parameters
- funсtion: function
  
  The function whose context will be changed.
  - - (a: A, t: T, u: U, v: V): TReturn
    - Parameters
      - a: A
      - t: T
      - u: U
      - v: V
      Returns TReturn
- context: null | undefined
  
  The object to which the context (this) of the function should be set.
- a: A
  
  An argument to be passed to the function referenced in the function argument.
Returns function
- - (t: T, u: U, v: V): TReturn
  - Parameters
    - t: T
    - u: U
    - v: V
    Returns TReturn
Takes a function and returns a new one that will always have a particular context.

see

``

since

1.9

deprecated

Deprecated since 3.3. Use `{@link Function#bind }`.

Type parameters
- TReturn
- T
- U
- V
Parameters
- funсtion: function
  
  The function whose context will be changed.
  - - (t: T, u: U, v: V): TReturn
    - Parameters
      - t: T
      - u: U
      - v: V
      Returns TReturn
- context: null | undefined
  
  The object to which the context (this) of the function should be set.
Returns function
- - (t: T, u: U, v: V): TReturn
  - Parameters
    - t: T
    - u: U
    - v: V
    Returns TReturn
Takes a function and returns a new one that will always have a particular context.

see

``

since

1.9

deprecated

Deprecated since 3.3. Use `{@link Function#bind }`.

Type parameters
- TReturn
- A
- B
- C
- D
- E
- F
- G
- T
- U
- V
- W
Parameters
- funсtion: function
  
  The function whose context will be changed.
  - - (a: A, b: B, c: C, d: D, e: E, f: F, g: G, t: T, u: U, v: V, w: W): TReturn
    - Parameters
      - a: A
      - b: B
      - c: C
      - d: D
      - e: E
      - f: F
      - g: G
      - t: T
      - u: U
      - v: V
      - w: W
      Returns TReturn
- context: null | undefined
  
  The object to which the context (this) of the function should be set.
- a: A
  
  An argument to be passed to the function referenced in the function argument.
- b: B
  
  An argument to be passed to the function referenced in the function argument.
- c: C
  
  An argument to be passed to the function referenced in the function argument.
- d: D
  
  An argument to be passed to the function referenced in the function argument.
- e: E
  
  An argument to be passed to the function referenced in the function argument.
- f: F
  
  An argument to be passed to the function referenced in the function argument.
- g: G
  
  An argument to be passed to the function referenced in the function argument.
Returns function
- - (t: T, u: U, v: V, w: W): TReturn
  - Parameters
    - t: T
    - u: U
    - v: V
    - w: W
    Returns TReturn
Takes a function and returns a new one that will always have a particular context.

see

``

since

1.9

deprecated

Deprecated since 3.3. Use `{@link Function#bind }`.

Type parameters
- TReturn
- A
- B
- C
- D
- E
- F
- T
- U
- V
- W
Parameters
- funсtion: function
  
  The function whose context will be changed.
  - - (a: A, b: B, c: C, d: D, e: E, f: F, t: T, u: U, v: V, w: W): TReturn
    - Parameters
      - a: A
      - b: B
      - c: C
      - d: D
      - e: E
      - f: F
      - t: T
      - u: U
      - v: V
      - w: W
      Returns TReturn
- context: null | undefined
  
  The object to which the context (this) of the function should be set.
- a: A
  
  An argument to be passed to the function referenced in the function argument.
- b: B
  
  An argument to be passed to the function referenced in the function argument.
- c: C
  
  An argument to be passed to the function referenced in the function argument.
- d: D
  
  An argument to be passed to the function referenced in the function argument.
- e: E
  
  An argument to be passed to the function referenced in the function argument.
- f: F
  
  An argument to be passed to the function referenced in the function argument.
Returns function
- - (t: T, u: U, v: V, w: W): TReturn
  - Parameters
    - t: T
    - u: U
    - v: V
    - w: W
    Returns TReturn
Takes a function and returns a new one that will always have a particular context.

see

``

since

1.9

deprecated

Deprecated since 3.3. Use `{@link Function#bind }`.

Type parameters
- TReturn
- A
- B
- C
- D
- E
- T
- U
- V
- W
Parameters
- funсtion: function
  
  The function whose context will be changed.
  - - (a: A, b: B, c: C, d: D, e: E, t: T, u: U, v: V, w: W): TReturn
    - Parameters
      - a: A
      - b: B
      - c: C
      - d: D
      - e: E
      - t: T
      - u: U
      - v: V
      - w: W
      Returns TReturn
- context: null | undefined
  
  The object to which the context (this) of the function should be set.
- a: A
  
  An argument to be passed to the function referenced in the function argument.
- b: B
  
  An argument to be passed to the function referenced in the function argument.
- c: C
  
  An argument to be passed to the function referenced in the function argument.
- d: D
  
  An argument to be passed to the function referenced in the function argument.
- e: E
  
  An argument to be passed to the function referenced in the function argument.
Returns function
- - (t: T, u: U, v: V, w: W): TReturn
  - Parameters
    - t: T
    - u: U
    - v: V
    - w: W
    Returns TReturn
Takes a function and returns a new one that will always have a particular context.

see

``

since

1.9

deprecated

Deprecated since 3.3. Use `{@link Function#bind }`.

Type parameters
- TReturn
- A
- B
- C
- D
- T
- U
- V
- W
Parameters
- funсtion: function
  
  The function whose context will be changed.
  - - (a: A, b: B, c: C, d: D, t: T, u: U, v: V, w: W): TReturn
    - Parameters
      - a: A
      - b: B
      - c: C
      - d: D
      - t: T
      - u: U
      - v: V
      - w: W
      Returns TReturn
- context: null | undefined
  
  The object to which the context (this) of the function should be set.
- a: A
  
  An argument to be passed to the function referenced in the function argument.
- b: B
  
  An argument to be passed to the function referenced in the function argument.
- c: C
  
  An argument to be passed to the function referenced in the function argument.
- d: D
  
  An argument to be passed to the function referenced in the function argument.
Returns function
- - (t: T, u: U, v: V, w: W): TReturn
  - Parameters
    - t: T
    - u: U
    - v: V
    - w: W
    Returns TReturn
Takes a function and returns a new one that will always have a particular context.

see

``

since

1.9

deprecated

Deprecated since 3.3. Use `{@link Function#bind }`.

Type parameters
- TReturn
- A
- B
- C
- T
- U
- V
- W
Parameters
- funсtion: function
  
  The function whose context will be changed.
  - - (a: A, b: B, c: C, t: T, u: U, v: V, w: W): TReturn
    - Parameters
      - a: A
      - b: B
      - c: C
      - t: T
      - u: U
      - v: V
      - w: W
      Returns TReturn
- context: null | undefined
  
  The object to which the context (this) of the function should be set.
- a: A
  
  An argument to be passed to the function referenced in the function argument.
- b: B
  
  An argument to be passed to the function referenced in the function argument.
- c: C
  
  An argument to be passed to the function referenced in the function argument.
Returns function
- - (t: T, u: U, v: V, w: W): TReturn
  - Parameters
    - t: T
    - u: U
    - v: V
    - w: W
    Returns TReturn
Takes a function and returns a new one that will always have a particular context.

see

``

since

1.9

deprecated

Deprecated since 3.3. Use `{@link Function#bind }`.

Type parameters
- TReturn
- A
- B
- T
- U
- V
- W
Parameters
- funсtion: function
  
  The function whose context will be changed.
  - - (a: A, b: B, t: T, u: U, v: V, w: W): TReturn
    - Parameters
      - a: A
      - b: B
      - t: T
      - u: U
      - v: V
      - w: W
      Returns TReturn
- context: null | undefined
  
  The object to which the context (this) of the function should be set.
- a: A
  
  An argument to be passed to the function referenced in the function argument.
- b: B
  
  An argument to be passed to the function referenced in the function argument.
Returns function
- - (t: T, u: U, v: V, w: W): TReturn
  - Parameters
    - t: T
    - u: U
    - v: V
    - w: W
    Returns TReturn
Takes a function and returns a new one that will always have a particular context.

see

``

since

1.9

deprecated

Deprecated since 3.3. Use `{@link Function#bind }`.

Type parameters
- TReturn
- A
- T
- U
- V
- W
Parameters
- funсtion: function
  
  The function whose context will be changed.
  - - (a: A, t: T, u: U, v: V, w: W): TReturn
    - Parameters
      - a: A
      - t: T
      - u: U
      - v: V
      - w: W
      Returns TReturn
- context: null | undefined
  
  The object to which the context (this) of the function should be set.
- a: A
  
  An argument to be passed to the function referenced in the function argument.
Returns function
- - (t: T, u: U, v: V, w: W): TReturn
  - Parameters
    - t: T
    - u: U
    - v: V
    - w: W
    Returns TReturn
Takes a function and returns a new one that will always have a particular context.

see

``

since

1.9

deprecated

Deprecated since 3.3. Use `{@link Function#bind }`.

Type parameters
- TReturn
- T
- U
- V
- W
Parameters
- funсtion: function
  
  The function whose context will be changed.
  - - (t: T, u: U, v: V, w: W): TReturn
    - Parameters
      - t: T
      - u: U
      - v: V
      - w: W
      Returns TReturn
- context: null | undefined
  
  The object to which the context (this) of the function should be set.
Returns function
- - (t: T, u: U, v: V, w: W): TReturn
  - Parameters
    - t: T
    - u: U
    - v: V
    - w: W
    Returns TReturn
Takes a function and returns a new one that will always have a particular context.

see

``

since

1.9

deprecated

Deprecated since 3.3. Use `{@link Function#bind }`.

Type parameters
- TReturn
- A
- B
- C
- D
- E
- F
- G
- T
- U
- V
- W
- X
Parameters
- funсtion: function
  
  The function whose context will be changed.
  - - (a: A, b: B, c: C, d: D, e: E, f: F, g: G, t: T, u: U, v: V, w: W, x: X): TReturn
    - Parameters
      - a: A
      - b: B
      - c: C
      - d: D
      - e: E
      - f: F
      - g: G
      - t: T
      - u: U
      - v: V
      - w: W
      - x: X
      Returns TReturn
- context: null | undefined
  
  The object to which the context (this) of the function should be set.
- a: A
  
  An argument to be passed to the function referenced in the function argument.
- b: B
  
  An argument to be passed to the function referenced in the function argument.
- c: C
  
  An argument to be passed to the function referenced in the function argument.
- d: D
  
  An argument to be passed to the function referenced in the function argument.
- e: E
  
  An argument to be passed to the function referenced in the function argument.
- f: F
  
  An argument to be passed to the function referenced in the function argument.
- g: G
  
  An argument to be passed to the function referenced in the function argument.
Returns function
- - (t: T, u: U, v: V, w: W, x: X): TReturn
  - Parameters
    - t: T
    - u: U
    - v: V
    - w: W
    - x: X
    Returns TReturn
Takes a function and returns a new one that will always have a particular context.

see

``

since

1.9

deprecated

Deprecated since 3.3. Use `{@link Function#bind }`.

Type parameters
- TReturn
- A
- B
- C
- D
- E
- F
- T
- U
- V
- W
- X
Parameters
- funсtion: function
  
  The function whose context will be changed.
  - - (a: A, b: B, c: C, d: D, e: E, f: F, t: T, u: U, v: V, w: W, x: X): TReturn
    - Parameters
      - a: A
      - b: B
      - c: C
      - d: D
      - e: E
      - f: F
      - t: T
      - u: U
      - v: V
      - w: W
      - x: X
      Returns TReturn
- context: null | undefined
  
  The object to which the context (this) of the function should be set.
- a: A
  
  An argument to be passed to the function referenced in the function argument.
- b: B
  
  An argument to be passed to the function referenced in the function argument.
- c: C
  
  An argument to be passed to the function referenced in the function argument.
- d: D
  
  An argument to be passed to the function referenced in the function argument.
- e: E
  
  An argument to be passed to the function referenced in the function argument.
- f: F
  
  An argument to be passed to the function referenced in the function argument.
Returns function
- - (t: T, u: U, v: V, w: W, x: X): TReturn
  - Parameters
    - t: T
    - u: U
    - v: V
    - w: W
    - x: X
    Returns TReturn
Takes a function and returns a new one that will always have a particular context.

see

``

since

1.9

deprecated

Deprecated since 3.3. Use `{@link Function#bind }`.

Type parameters
- TReturn
- A
- B
- C
- D
- E
- T
- U
- V
- W
- X
Parameters
- funсtion: function
  
  The function whose context will be changed.
  - - (a: A, b: B, c: C, d: D, e: E, t: T, u: U, v: V, w: W, x: X): TReturn
    - Parameters
      - a: A
      - b: B
      - c: C
      - d: D
      - e: E
      - t: T
      - u: U
      - v: V
      - w: W
      - x: X
      Returns TReturn
- context: null | undefined
  
  The object to which the context (this) of the function should be set.
- a: A
  
  An argument to be passed to the function referenced in the function argument.
- b: B
  
  An argument to be passed to the function referenced in the function argument.
- c: C
  
  An argument to be passed to the function referenced in the function argument.
- d: D
  
  An argument to be passed to the function referenced in the function argument.
- e: E
  
  An argument to be passed to the function referenced in the function argument.
Returns function
- - (t: T, u: U, v: V, w: W, x: X): TReturn
  - Parameters
    - t: T
    - u: U
    - v: V
    - w: W
    - x: X
    Returns TReturn
Takes a function and returns a new one that will always have a particular context.

see

``

since

1.9

deprecated

Deprecated since 3.3. Use `{@link Function#bind }`.

Type parameters
- TReturn
- A
- B
- C
- D
- T
- U
- V
- W
- X
Parameters
- funсtion: function
  
  The function whose context will be changed.
  - - (a: A, b: B, c: C, d: D, t: T, u: U, v: V, w: W, x: X): TReturn
    - Parameters
      - a: A
      - b: B
      - c: C
      - d: D
      - t: T
      - u: U
      - v: V
      - w: W
      - x: X
      Returns TReturn
- context: null | undefined
  
  The object to which the context (this) of the function should be set.
- a: A
  
  An argument to be passed to the function referenced in the function argument.
- b: B
  
  An argument to be passed to the function referenced in the function argument.
- c: C
  
  An argument to be passed to the function referenced in the function argument.
- d: D
  
  An argument to be passed to the function referenced in the function argument.
Returns function
- - (t: T, u: U, v: V, w: W, x: X): TReturn
  - Parameters
    - t: T
    - u: U
    - v: V
    - w: W
    - x: X
    Returns TReturn
Takes a function and returns a new one that will always have a particular context.

see

``

since

1.9

deprecated

Deprecated since 3.3. Use `{@link Function#bind }`.

Type parameters
- TReturn
- A
- B
- C
- T
- U
- V
- W
- X
Parameters
- funсtion: function
  
  The function whose context will be changed.
  - - (a: A, b: B, c: C, t: T, u: U, v: V, w: W, x: X): TReturn
    - Parameters
      - a: A
      - b: B
      - c: C
      - t: T
      - u: U
      - v: V
      - w: W
      - x: X
      Returns TReturn
- context: null | undefined
  
  The object to which the context (this) of the function should be set.
- a: A
  
  An argument to be passed to the function referenced in the function argument.
- b: B
  
  An argument to be passed to the function referenced in the function argument.
- c: C
  
  An argument to be passed to the function referenced in the function argument.
Returns function
- - (t: T, u: U, v: V, w: W, x: X): TReturn
  - Parameters
    - t: T
    - u: U
    - v: V
    - w: W
    - x: X
    Returns TReturn
Takes a function and returns a new one that will always have a particular context.

see

``

since

1.9

deprecated

Deprecated since 3.3. Use `{@link Function#bind }`.

Type parameters
- TReturn
- A
- B
- T
- U
- V
- W
- X
Parameters
- funсtion: function
  
  The function whose context will be changed.
  - - (a: A, b: B, t: T, u: U, v: V, w: W, x: X): TReturn
    - Parameters
      - a: A
      - b: B
      - t: T
      - u: U
      - v: V
      - w: W
      - x: X
      Returns TReturn
- context: null | undefined
  
  The object to which the context (this) of the function should be set.
- a: A
  
  An argument to be passed to the function referenced in the function argument.
- b: B
  
  An argument to be passed to the function referenced in the function argument.
Returns function
- - (t: T, u: U, v: V, w: W, x: X): TReturn
  - Parameters
    - t: T
    - u: U
    - v: V
    - w: W
    - x: X
    Returns TReturn
Takes a function and returns a new one that will always have a particular context.

see

``

since

1.9

deprecated

Deprecated since 3.3. Use `{@link Function#bind }`.

Type parameters
- TReturn
- A
- T
- U
- V
- W
- X
Parameters
- funсtion: function
  
  The function whose context will be changed.
  - - (a: A, t: T, u: U, v: V, w: W, x: X): TReturn
    - Parameters
      - a: A
      - t: T
      - u: U
      - v: V
      - w: W
      - x: X
      Returns TReturn
- context: null | undefined
  
  The object to which the context (this) of the function should be set.
- a: A
  
  An argument to be passed to the function referenced in the function argument.
Returns function
- - (t: T, u: U, v: V, w: W, x: X): TReturn
  - Parameters
    - t: T
    - u: U
    - v: V
    - w: W
    - x: X
    Returns TReturn
Takes a function and returns a new one that will always have a particular context.

see

``

since

1.9

deprecated

Deprecated since 3.3. Use `{@link Function#bind }`.

Type parameters
- TReturn
- T
- U
- V
- W
- X
Parameters
- funсtion: function
  
  The function whose context will be changed.
  - - (t: T, u: U, v: V, w: W, x: X): TReturn
    - Parameters
      - t: T
      - u: U
      - v: V
      - w: W
      - x: X
      Returns TReturn
- context: null | undefined
  
  The object to which the context (this) of the function should be set.
Returns function
- - (t: T, u: U, v: V, w: W, x: X): TReturn
  - Parameters
    - t: T
    - u: U
    - v: V
    - w: W
    - x: X
    Returns TReturn
Takes a function and returns a new one that will always have a particular context.

see

``

since

1.9

deprecated

Deprecated since 3.3. Use `{@link Function#bind }`.

Type parameters
- TReturn
- A
- B
- C
- D
- E
- F
- G
- T
- U
- V
- W
- X
- Y
Parameters
- funсtion: function
  
  The function whose context will be changed.
  - - (a: A, b: B, c: C, d: D, e: E, f: F, g: G, t: T, u: U, v: V, w: W, x: X, y: Y): TReturn
    - Parameters
      - a: A
      - b: B
      - c: C
      - d: D
      - e: E
      - f: F
      - g: G
      - t: T
      - u: U
      - v: V
      - w: W
      - x: X
      - y: Y
      Returns TReturn
- context: null | undefined
  
  The object to which the context (this) of the function should be set.
- a: A
  
  An argument to be passed to the function referenced in the function argument.
- b: B
  
  An argument to be passed to the function referenced in the function argument.
- c: C
  
  An argument to be passed to the function referenced in the function argument.
- d: D
  
  An argument to be passed to the function referenced in the function argument.
- e: E
  
  An argument to be passed to the function referenced in the function argument.
- f: F
  
  An argument to be passed to the function referenced in the function argument.
- g: G
  
  An argument to be passed to the function referenced in the function argument.
Returns function
- - (t: T, u: U, v: V, w: W, x: X, y: Y): TReturn
  - Parameters
    - t: T
    - u: U
    - v: V
    - w: W
    - x: X
    - y: Y
    Returns TReturn
Takes a function and returns a new one that will always have a particular context.

see

``

since

1.9

deprecated

Deprecated since 3.3. Use `{@link Function#bind }`.

Type parameters
- TReturn
- A
- B
- C
- D
- E
- F
- T
- U
- V
- W
- X
- Y
Parameters
- funсtion: function
  
  The function whose context will be changed.
  - - (a: A, b: B, c: C, d: D, e: E, f: F, t: T, u: U, v: V, w: W, x: X, y: Y): TReturn
    - Parameters
      - a: A
      - b: B
      - c: C
      - d: D
      - e: E
      - f: F
      - t: T
      - u: U
      - v: V
      - w: W
      - x: X
      - y: Y
      Returns TReturn
- context: null | undefined
  
  The object to which the context (this) of the function should be set.
- a: A
  
  An argument to be passed to the function referenced in the function argument.
- b: B
  
  An argument to be passed to the function referenced in the function argument.
- c: C
  
  An argument to be passed to the function referenced in the function argument.
- d: D
  
  An argument to be passed to the function referenced in the function argument.
- e: E
  
  An argument to be passed to the function referenced in the function argument.
- f: F
  
  An argument to be passed to the function referenced in the function argument.
Returns function
- - (t: T, u: U, v: V, w: W, x: X, y: Y): TReturn
  - Parameters
    - t: T
    - u: U
    - v: V
    - w: W
    - x: X
    - y: Y
    Returns TReturn
Takes a function and returns a new one that will always have a particular context.

see

``

since

1.9

deprecated

Deprecated since 3.3. Use `{@link Function#bind }`.

Type parameters
- TReturn
- A
- B
- C
- D
- E
- T
- U
- V
- W
- X
- Y
Parameters
- funсtion: function
  
  The function whose context will be changed.
  - - (a: A, b: B, c: C, d: D, e: E, t: T, u: U, v: V, w: W, x: X, y: Y): TReturn
    - Parameters
      - a: A
      - b: B
      - c: C
      - d: D
      - e: E
      - t: T
      - u: U
      - v: V
      - w: W
      - x: X
      - y: Y
      Returns TReturn
- context: null | undefined
  
  The object to which the context (this) of the function should be set.
- a: A
  
  An argument to be passed to the function referenced in the function argument.
- b: B
  
  An argument to be passed to the function referenced in the function argument.
- c: C
  
  An argument to be passed to the function referenced in the function argument.
- d: D
  
  An argument to be passed to the function referenced in the function argument.
- e: E
  
  An argument to be passed to the function referenced in the function argument.
Returns function
- - (t: T, u: U, v: V, w: W, x: X, y: Y): TReturn
  - Parameters
    - t: T
    - u: U
    - v: V
    - w: W
    - x: X
    - y: Y
    Returns TReturn
Takes a function and returns a new one that will always have a particular context.

see

``

since

1.9

deprecated

Deprecated since 3.3. Use `{@link Function#bind }`.

Type parameters
- TReturn
- A
- B
- C
- D
- T
- U
- V
- W
- X
- Y
Parameters
- funсtion: function
  
  The function whose context will be changed.
  - - (a: A, b: B, c: C, d: D, t: T, u: U, v: V, w: W, x: X, y: Y): TReturn
    - Parameters
      - a: A
      - b: B
      - c: C
      - d: D
      - t: T
      - u: U
      - v: V
      - w: W
      - x: X
      - y: Y
      Returns TReturn
- context: null | undefined
  
  The object to which the context (this) of the function should be set.
- a: A
  
  An argument to be passed to the function referenced in the function argument.
- b: B
  
  An argument to be passed to the function referenced in the function argument.
- c: C
  
  An argument to be passed to the function referenced in the function argument.
- d: D
  
  An argument to be passed to the function referenced in the function argument.
Returns function
- - (t: T, u: U, v: V, w: W, x: X, y: Y): TReturn
  - Parameters
    - t: T
    - u: U
    - v: V
    - w: W
    - x: X
    - y: Y
    Returns TReturn
Takes a function and returns a new one that will always have a particular context.

see

``

since

1.9

deprecated

Deprecated since 3.3. Use `{@link Function#bind }`.

Type parameters
- TReturn
- A
- B
- C
- T
- U
- V
- W
- X
- Y
Parameters
- funсtion: function
  
  The function whose context will be changed.
  - - (a: A, b: B, c: C, t: T, u: U, v: V, w: W, x: X, y: Y): TReturn
    - Parameters
      - a: A
      - b: B
      - c: C
      - t: T
      - u: U
      - v: V
      - w: W
      - x: X
      - y: Y
      Returns TReturn
- context: null | undefined
  
  The object to which the context (this) of the function should be set.
- a: A
  
  An argument to be passed to the function referenced in the function argument.
- b: B
  
  An argument to be passed to the function referenced in the function argument.
- c: C
  
  An argument to be passed to the function referenced in the function argument.
Returns function
- - (t: T, u: U, v: V, w: W, x: X, y: Y): TReturn
  - Parameters
    - t: T
    - u: U
    - v: V
    - w: W
    - x: X
    - y: Y
    Returns TReturn
Takes a function and returns a new one that will always have a particular context.

see

``

since

1.9

deprecated

Deprecated since 3.3. Use `{@link Function#bind }`.

Type parameters
- TReturn
- A
- B
- T
- U
- V
- W
- X
- Y
Parameters
- funсtion: function
  
  The function whose context will be changed.
  - - (a: A, b: B, t: T, u: U, v: V, w: W, x: X, y: Y): TReturn
    - Parameters
      - a: A
      - b: B
      - t: T
      - u: U
      - v: V
      - w: W
      - x: X
      - y: Y
      Returns TReturn
- context: null | undefined
  
  The object to which the context (this) of the function should be set.
- a: A
  
  An argument to be passed to the function referenced in the function argument.
- b: B
  
  An argument to be passed to the function referenced in the function argument.
Returns function
- - (t: T, u: U, v: V, w: W, x: X, y: Y): TReturn
  - Parameters
    - t: T
    - u: U
    - v: V
    - w: W
    - x: X
    - y: Y
    Returns TReturn
Takes a function and returns a new one that will always have a particular context.

see

``

since

1.9

deprecated

Deprecated since 3.3. Use `{@link Function#bind }`.

Type parameters
- TReturn
- A
- T
- U
- V
- W
- X
- Y
Parameters
- funсtion: function
  
  The function whose context will be changed.
  - - (a: A, t: T, u: U, v: V, w: W, x: X, y: Y): TReturn
    - Parameters
      - a: A
      - t: T
      - u: U
      - v: V
      - w: W
      - x: X
      - y: Y
      Returns TReturn
- context: null | undefined
  
  The object to which the context (this) of the function should be set.
- a: A
  
  An argument to be passed to the function referenced in the function argument.
Returns function
- - (t: T, u: U, v: V, w: W, x: X, y: Y): TReturn
  - Parameters
    - t: T
    - u: U
    - v: V
    - w: W
    - x: X
    - y: Y
    Returns TReturn
Takes a function and returns a new one that will always have a particular context.

see

``

since

1.9

deprecated

Deprecated since 3.3. Use `{@link Function#bind }`.

Type parameters
- TReturn
- T
- U
- V
- W
- X
- Y
Parameters
- funсtion: function
  
  The function whose context will be changed.
  - - (t: T, u: U, v: V, w: W, x: X, y: Y): TReturn
    - Parameters
      - t: T
      - u: U
      - v: V
      - w: W
      - x: X
      - y: Y
      Returns TReturn
- context: null | undefined
  
  The object to which the context (this) of the function should be set.
Returns function
- - (t: T, u: U, v: V, w: W, x: X, y: Y): TReturn
  - Parameters
    - t: T
    - u: U
    - v: V
    - w: W
    - x: X
    - y: Y
    Returns TReturn
Takes a function and returns a new one that will always have a particular context.

see

``

since

1.9

deprecated

Deprecated since 3.3. Use `{@link Function#bind }`.

Type parameters
- TReturn
- A
- B
- C
- D
- E
- F
- G
- T
- U
- V
- W
- X
- Y
- Z
Parameters
- funсtion: function
  
  The function whose context will be changed.
  - - (a: A, b: B, c: C, d: D, e: E, f: F, g: G, t: T, u: U, v: V, w: W, x: X, y: Y, z: Z, ...args: any[]): TReturn
    - Parameters
      - a: A
      - b: B
      - c: C
      - d: D
      - e: E
      - f: F
      - g: G
      - t: T
      - u: U
      - v: V
      - w: W
      - x: X
      - y: Y
      - z: Z
      - Rest ...args: any[]
      Returns TReturn
- context: null | undefined
  
  The object to which the context (this) of the function should be set.
- a: A
  
  An argument to be passed to the function referenced in the function argument.
- b: B
  
  An argument to be passed to the function referenced in the function argument.
- c: C
  
  An argument to be passed to the function referenced in the function argument.
- d: D
  
  An argument to be passed to the function referenced in the function argument.
- e: E
  
  An argument to be passed to the function referenced in the function argument.
- f: F
  
  An argument to be passed to the function referenced in the function argument.
- g: G
  
  An argument to be passed to the function referenced in the function argument.
Returns function
- - (t: T, u: U, v: V, w: W, x: X, y: Y, z: Z, ...args: any[]): TReturn
  - Parameters
    - t: T
    - u: U
    - v: V
    - w: W
    - x: X
    - y: Y
    - z: Z
    - Rest ...args: any[]
    Returns TReturn
Takes a function and returns a new one that will always have a particular context.

see

``

since

1.9

deprecated

Deprecated since 3.3. Use `{@link Function#bind }`.

Type parameters
- TReturn
- A
- B
- C
- D
- E
- F
- T
- U
- V
- W
- X
- Y
- Z
Parameters
- funсtion: function
  
  The function whose context will be changed.
  - - (a: A, b: B, c: C, d: D, e: E, f: F, t: T, u: U, v: V, w: W, x: X, y: Y, z: Z, ...args: any[]): TReturn
    - Parameters
      - a: A
      - b: B
      - c: C
      - d: D
      - e: E
      - f: F
      - t: T
      - u: U
      - v: V
      - w: W
      - x: X
      - y: Y
      - z: Z
      - Rest ...args: any[]
      Returns TReturn
- context: null | undefined
  
  The object to which the context (this) of the function should be set.
- a: A
  
  An argument to be passed to the function referenced in the function argument.
- b: B
  
  An argument to be passed to the function referenced in the function argument.
- c: C
  
  An argument to be passed to the function referenced in the function argument.
- d: D
  
  An argument to be passed to the function referenced in the function argument.
- e: E
  
  An argument to be passed to the function referenced in the function argument.
- f: F
  
  An argument to be passed to the function referenced in the function argument.
Returns function
- - (t: T, u: U, v: V, w: W, x: X, y: Y, z: Z, ...args: any[]): TReturn
  - Parameters
    - t: T
    - u: U
    - v: V
    - w: W
    - x: X
    - y: Y
    - z: Z
    - Rest ...args: any[]
    Returns TReturn
Takes a function and returns a new one that will always have a particular context.

see

``

since

1.9

deprecated

Deprecated since 3.3. Use `{@link Function#bind }`.

Type parameters
- TReturn
- A
- B
- C
- D
- E
- T
- U
- V
- W
- X
- Y
- Z
Parameters
- funсtion: function
  
  The function whose context will be changed.
  - - (a: A, b: B, c: C, d: D, e: E, t: T, u: U, v: V, w: W, x: X, y: Y, z: Z, ...args: any[]): TReturn
    - Parameters
      - a: A
      - b: B
      - c: C
      - d: D
      - e: E
      - t: T
      - u: U
      - v: V
      - w: W
      - x: X
      - y: Y
      - z: Z
      - Rest ...args: any[]
      Returns TReturn
- context: null | undefined
  
  The object to which the context (this) of the function should be set.
- a: A
  
  An argument to be passed to the function referenced in the function argument.
- b: B
  
  An argument to be passed to the function referenced in the function argument.
- c: C
  
  An argument to be passed to the function referenced in the function argument.
- d: D
  
  An argument to be passed to the function referenced in the function argument.
- e: E
  
  An argument to be passed to the function referenced in the function argument.
Returns function
- - (t: T, u: U, v: V, w: W, x: X, y: Y, z: Z, ...args: any[]): TReturn
  - Parameters
    - t: T
    - u: U
    - v: V
    - w: W
    - x: X
    - y: Y
    - z: Z
    - Rest ...args: any[]
    Returns TReturn
Takes a function and returns a new one that will always have a particular context.

see

``

since

1.9

deprecated

Deprecated since 3.3. Use `{@link Function#bind }`.

Type parameters
- TReturn
- A
- B
- C
- D
- T
- U
- V
- W
- X
- Y
- Z
Parameters
- funсtion: function
  
  The function whose context will be changed.
  - - (a: A, b: B, c: C, d: D, t: T, u: U, v: V, w: W, x: X, y: Y, z: Z, ...args: any[]): TReturn
    - Parameters
      - a: A
      - b: B
      - c: C
      - d: D
      - t: T
      - u: U
      - v: V
      - w: W
      - x: X
      - y: Y
      - z: Z
      - Rest ...args: any[]
      Returns TReturn
- context: null | undefined
  
  The object to which the context (this) of the function should be set.
- a: A
  
  An argument to be passed to the function referenced in the function argument.
- b: B
  
  An argument to be passed to the function referenced in the function argument.
- c: C
  
  An argument to be passed to the function referenced in the function argument.
- d: D
  
  An argument to be passed to the function referenced in the function argument.
Returns function
- - (t: T, u: U, v: V, w: W, x: X, y: Y, z: Z, ...args: any[]): TReturn
  - Parameters
    - t: T
    - u: U
    - v: V
    - w: W
    - x: X
    - y: Y
    - z: Z
    - Rest ...args: any[]
    Returns TReturn
Takes a function and returns a new one that will always have a particular context.

see

``

since

1.9

deprecated

Deprecated since 3.3. Use `{@link Function#bind }`.

Type parameters
- TReturn
- A
- B
- C
- T
- U
- V
- W
- X
- Y
- Z
Parameters
- funсtion: function
  
  The function whose context will be changed.
  - - (a: A, b: B, c: C, t: T, u: U, v: V, w: W, x: X, y: Y, z: Z, ...args: any[]): TReturn
    - Parameters
      - a: A
      - b: B
      - c: C
      - t: T
      - u: U
      - v: V
      - w: W
      - x: X
      - y: Y
      - z: Z
      - Rest ...args: any[]
      Returns TReturn
- context: null | undefined
  
  The object to which the context (this) of the function should be set.
- a: A
  
  An argument to be passed to the function referenced in the function argument.
- b: B
  
  An argument to be passed to the function referenced in the function argument.
- c: C
  
  An argument to be passed to the function referenced in the function argument.
Returns function
- - (t: T, u: U, v: V, w: W, x: X, y: Y, z: Z, ...args: any[]): TReturn
  - Parameters
    - t: T
    - u: U
    - v: V
    - w: W
    - x: X
    - y: Y
    - z: Z
    - Rest ...args: any[]
    Returns TReturn
Takes a function and returns a new one that will always have a particular context.

see

``

since

1.9

deprecated

Deprecated since 3.3. Use `{@link Function#bind }`.

Type parameters
- TReturn
- A
- B
- T
- U
- V
- W
- X
- Y
- Z
Parameters
- funсtion: function
  
  The function whose context will be changed.
  - - (a: A, b: B, t: T, u: U, v: V, w: W, x: X, y: Y, z: Z, ...args: any[]): TReturn
    - Parameters
      - a: A
      - b: B
      - t: T
      - u: U
      - v: V
      - w: W
      - x: X
      - y: Y
      - z: Z
      - Rest ...args: any[]
      Returns TReturn
- context: null | undefined
  
  The object to which the context (this) of the function should be set.
- a: A
  
  An argument to be passed to the function referenced in the function argument.
- b: B
  
  An argument to be passed to the function referenced in the function argument.
Returns function
- - (t: T, u: U, v: V, w: W, x: X, y: Y, z: Z, ...args: any[]): TReturn
  - Parameters
    - t: T
    - u: U
    - v: V
    - w: W
    - x: X
    - y: Y
    - z: Z
    - Rest ...args: any[]
    Returns TReturn
Takes a function and returns a new one that will always have a particular context.

see

``

since

1.9

deprecated

Deprecated since 3.3. Use `{@link Function#bind }`.

Type parameters
- TReturn
- A
- T
- U
- V
- W
- X
- Y
- Z
Parameters
- funсtion: function
  
  The function whose context will be changed.
  - - (a: A, t: T, u: U, v: V, w: W, x: X, y: Y, z: Z, ...args: any[]): TReturn
    - Parameters
      - a: A
      - t: T
      - u: U
      - v: V
      - w: W
      - x: X
      - y: Y
      - z: Z
      - Rest ...args: any[]
      Returns TReturn
- context: null | undefined
  
  The object to which the context (this) of the function should be set.
- a: A
  
  An argument to be passed to the function referenced in the function argument.
Returns function
- - (t: T, u: U, v: V, w: W, x: X, y: Y, z: Z, ...args: any[]): TReturn
  - Parameters
    - t: T
    - u: U
    - v: V
    - w: W
    - x: X
    - y: Y
    - z: Z
    - Rest ...args: any[]
    Returns TReturn
Takes a function and returns a new one that will always have a particular context.

see

``

since

1.9

deprecated

Deprecated since 3.3. Use `{@link Function#bind }`.

Type parameters
- TReturn
- T
- U
- V
- W
- X
- Y
- Z
Parameters
- funсtion: function
  
  The function whose context will be changed.
  - - (t: T, u: U, v: V, w: W, x: X, y: Y, z: Z, ...args: any[]): TReturn
    - Parameters
      - t: T
      - u: U
      - v: V
      - w: W
      - x: X
      - y: Y
      - z: Z
      - Rest ...args: any[]
      Returns TReturn
- context: null | undefined
  
  The object to which the context (this) of the function should be set.
Returns function
- - (t: T, u: U, v: V, w: W, x: X, y: Y, z: Z, ...args: any[]): TReturn
  - Parameters
    - t: T
    - u: U
    - v: V
    - w: W
    - x: X
    - y: Y
    - z: Z
    - Rest ...args: any[]
    Returns TReturn
Takes a function and returns a new one that will always have a particular context.

see

``

since

1.9

deprecated

Deprecated since 3.3. Use `{@link Function#bind }`.

Type parameters
- TReturn
Parameters
- funсtion: function
  
  The function whose context will be changed.
  - - (...args: any[]): TReturn
    - Parameters
      - Rest ...args: any[]
      Returns TReturn
- context: null | undefined
  
  The object to which the context (this) of the function should be set.
- Rest ...additionalArguments: any[]
  
  Any number of arguments to be passed to the function referenced in the function argument.
Returns function
- - (...args: any[]): TReturn
  - Parameters
    - Rest ...args: any[]
    Returns TReturn

Takes a function and returns a new one that will always have a particular context.

see

since

1.4

since

1.6

deprecated

Deprecated since 3.3. Use `{@link Function#bind }`.

example

````Change the context of functions bound to a click handler using the "function, context" signature. Unbind the first handler after first click.

<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery.proxy demo</title>
<script src="https://code.jquery.com/jquery-3.3.1.js"></script>
</head>
<body>

<p><button type="button" id="test">Test</button></p>
<div id="log"></div>

<script>
var me = {
type: "zombie",
test: function( event ) {
// Without proxy, `this` would refer to the event target
// use event.target to reference that element.
var element = event.target;
$( element ).css( "background-color", "red" );

// With proxy, `this` refers to the me object encapsulating
// this function.
$( "#log" ).append( "Hello " + this.type + "<br>" );
$( "#test" ).off( "click", this.test );
}
};

var you = {
type: "person",
test: function( event ) {
$( "#log" ).append( this.type + " " );
}
};

// Execute you.test() in the context of the `you` object
// no matter where it is called
// i.e. the `this` keyword will refer to `you`
var youClick = $.proxy( you.test, you );

// attach click handlers to #test
$( "#test" )
// this === "zombie"; handler unbound after first click
.on( "click", $.proxy( me.test, me ) )

// this === "person"
.on( "click", youClick )

// this === "zombie"
.on( "click", $.proxy( you.test, me ) )

// this === "<button> element"
.on( "click", you.test );
</script>

</body>
</html>

example

````Change the context of a function bound to the click handler,

<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery.proxy demo</title>
<script src="https://code.jquery.com/jquery-3.3.1.js"></script>
</head>
<body>

<p><button type="button" id="test">Test</button></p>
<div id="log"></div>

<script>
var me = {
// I'm a dog
type: "dog",

// Note that event comes *after* one and two
test: function( one, two, event ) {
$( "#log" )

// `one` maps to `you`, the 1st additional
// argument in the $.proxy function call
.append( "<h3>Hello " + one.type + ":</h3>" )

// The `this` keyword refers to `me`
// (the 2nd, context, argument of $.proxy)
.append( "I am a " + this.type + ", " )

// `two` maps to `they`, the 2nd additional
// argument in the $.proxy function call
.append( "and they are " + two.type + ".<br>" )

// The event type is "click"
.append( "Thanks for " + event.type + "ing." )

// The clicked element is `event.target`,
// and its type is "button"
.append( "the " + event.target.type + "." );
}
};

var you = { type: "cat" };
var they = { type: "fish" };

// Set up handler to execute me.test() in the context
// of `me`, with `you` and `they` as additional arguments
var proxy = $.proxy( me.test, me, you, they );

$( "#test" )
.on( "click", proxy );
</script>

</body>
</html>

Type parameters

TContext
TReturn
A
B
C
D
E
F
G

Parameters

funсtion: function

The function whose context will be changed.
- - (this: TContext, a: A, b: B, c: C, d: D, e: E, f: F, g: G): TReturn
  - Parameters
    - this: TContext
    - a: A
    - b: B
    - c: C
    - d: D
    - e: E
    - f: F
    - g: G
    Returns TReturn
context: TContext

The object to which the context (this) of the function should be set.
a: A

An argument to be passed to the function referenced in the function argument.
b: B

An argument to be passed to the function referenced in the function argument.
c: C

An argument to be passed to the function referenced in the function argument.
d: D

An argument to be passed to the function referenced in the function argument.
e: E

An argument to be passed to the function referenced in the function argument.
f: F

An argument to be passed to the function referenced in the function argument.
g: G

An argument to be passed to the function referenced in the function argument.

Returns function

- (): TReturn
- Returns TReturn

Takes a function and returns a new one that will always have a particular context.

see

since

1.4

since

1.6

deprecated

Deprecated since 3.3. Use `{@link Function#bind }`.

example

````Change the context of functions bound to a click handler using the "function, context" signature. Unbind the first handler after first click.

<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery.proxy demo</title>
<script src="https://code.jquery.com/jquery-3.3.1.js"></script>
</head>
<body>

<p><button type="button" id="test">Test</button></p>
<div id="log"></div>

<script>
var me = {
type: "zombie",
test: function( event ) {
// Without proxy, `this` would refer to the event target
// use event.target to reference that element.
var element = event.target;
$( element ).css( "background-color", "red" );

// With proxy, `this` refers to the me object encapsulating
// this function.
$( "#log" ).append( "Hello " + this.type + "<br>" );
$( "#test" ).off( "click", this.test );
}
};

var you = {
type: "person",
test: function( event ) {
$( "#log" ).append( this.type + " " );
}
};

// Execute you.test() in the context of the `you` object
// no matter where it is called
// i.e. the `this` keyword will refer to `you`
var youClick = $.proxy( you.test, you );

// attach click handlers to #test
$( "#test" )
// this === "zombie"; handler unbound after first click
.on( "click", $.proxy( me.test, me ) )

// this === "person"
.on( "click", youClick )

// this === "zombie"
.on( "click", $.proxy( you.test, me ) )

// this === "<button> element"
.on( "click", you.test );
</script>

</body>
</html>

example

````Change the context of a function bound to the click handler,

<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery.proxy demo</title>
<script src="https://code.jquery.com/jquery-3.3.1.js"></script>
</head>
<body>

<p><button type="button" id="test">Test</button></p>
<div id="log"></div>

<script>
var me = {
// I'm a dog
type: "dog",

// Note that event comes *after* one and two
test: function( one, two, event ) {
$( "#log" )

// `one` maps to `you`, the 1st additional
// argument in the $.proxy function call
.append( "<h3>Hello " + one.type + ":</h3>" )

// The `this` keyword refers to `me`
// (the 2nd, context, argument of $.proxy)
.append( "I am a " + this.type + ", " )

// `two` maps to `they`, the 2nd additional
// argument in the $.proxy function call
.append( "and they are " + two.type + ".<br>" )

// The event type is "click"
.append( "Thanks for " + event.type + "ing." )

// The clicked element is `event.target`,
// and its type is "button"
.append( "the " + event.target.type + "." );
}
};

var you = { type: "cat" };
var they = { type: "fish" };

// Set up handler to execute me.test() in the context
// of `me`, with `you` and `they` as additional arguments
var proxy = $.proxy( me.test, me, you, they );

$( "#test" )
.on( "click", proxy );
</script>

</body>
</html>

Type parameters

TContext
TReturn
A
B
C
D
E
F

Parameters

funсtion: function

The function whose context will be changed.
- - (this: TContext, a: A, b: B, c: C, d: D, e: E, f: F): TReturn
  - Parameters
    - this: TContext
    - a: A
    - b: B
    - c: C
    - d: D
    - e: E
    - f: F
    Returns TReturn
context: TContext

The object to which the context (this) of the function should be set.
a: A

An argument to be passed to the function referenced in the function argument.
b: B

An argument to be passed to the function referenced in the function argument.
c: C

An argument to be passed to the function referenced in the function argument.
d: D

An argument to be passed to the function referenced in the function argument.
e: E

An argument to be passed to the function referenced in the function argument.
f: F

An argument to be passed to the function referenced in the function argument.

Returns function

- (): TReturn
- Returns TReturn

Takes a function and returns a new one that will always have a particular context.

see

since

1.4

since

1.6

deprecated

Deprecated since 3.3. Use `{@link Function#bind }`.

example

````Change the context of functions bound to a click handler using the "function, context" signature. Unbind the first handler after first click.

<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery.proxy demo</title>
<script src="https://code.jquery.com/jquery-3.3.1.js"></script>
</head>
<body>

<p><button type="button" id="test">Test</button></p>
<div id="log"></div>

<script>
var me = {
type: "zombie",
test: function( event ) {
// Without proxy, `this` would refer to the event target
// use event.target to reference that element.
var element = event.target;
$( element ).css( "background-color", "red" );

// With proxy, `this` refers to the me object encapsulating
// this function.
$( "#log" ).append( "Hello " + this.type + "<br>" );
$( "#test" ).off( "click", this.test );
}
};

var you = {
type: "person",
test: function( event ) {
$( "#log" ).append( this.type + " " );
}
};

// Execute you.test() in the context of the `you` object
// no matter where it is called
// i.e. the `this` keyword will refer to `you`
var youClick = $.proxy( you.test, you );

// attach click handlers to #test
$( "#test" )
// this === "zombie"; handler unbound after first click
.on( "click", $.proxy( me.test, me ) )

// this === "person"
.on( "click", youClick )

// this === "zombie"
.on( "click", $.proxy( you.test, me ) )

// this === "<button> element"
.on( "click", you.test );
</script>

</body>
</html>

example

````Change the context of a function bound to the click handler,

<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery.proxy demo</title>
<script src="https://code.jquery.com/jquery-3.3.1.js"></script>
</head>
<body>

<p><button type="button" id="test">Test</button></p>
<div id="log"></div>

<script>
var me = {
// I'm a dog
type: "dog",

// Note that event comes *after* one and two
test: function( one, two, event ) {
$( "#log" )

// `one` maps to `you`, the 1st additional
// argument in the $.proxy function call
.append( "<h3>Hello " + one.type + ":</h3>" )

// The `this` keyword refers to `me`
// (the 2nd, context, argument of $.proxy)
.append( "I am a " + this.type + ", " )

// `two` maps to `they`, the 2nd additional
// argument in the $.proxy function call
.append( "and they are " + two.type + ".<br>" )

// The event type is "click"
.append( "Thanks for " + event.type + "ing." )

// The clicked element is `event.target`,
// and its type is "button"
.append( "the " + event.target.type + "." );
}
};

var you = { type: "cat" };
var they = { type: "fish" };

// Set up handler to execute me.test() in the context
// of `me`, with `you` and `they` as additional arguments
var proxy = $.proxy( me.test, me, you, they );

$( "#test" )
.on( "click", proxy );
</script>

</body>
</html>

Type parameters

TContext
TReturn
A
B
C
D
E

Parameters

funсtion: function

The function whose context will be changed.
- - (this: TContext, a: A, b: B, c: C, d: D, e: E): TReturn
  - Parameters
    - this: TContext
    - a: A
    - b: B
    - c: C
    - d: D
    - e: E
    Returns TReturn
context: TContext

The object to which the context (this) of the function should be set.
a: A

An argument to be passed to the function referenced in the function argument.
b: B

An argument to be passed to the function referenced in the function argument.
c: C

An argument to be passed to the function referenced in the function argument.
d: D

An argument to be passed to the function referenced in the function argument.
e: E

An argument to be passed to the function referenced in the function argument.

Returns function

- (): TReturn
- Returns TReturn

Takes a function and returns a new one that will always have a particular context.

see

since

1.4

since

1.6

deprecated

Deprecated since 3.3. Use `{@link Function#bind }`.

example

````Change the context of functions bound to a click handler using the "function, context" signature. Unbind the first handler after first click.

<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery.proxy demo</title>
<script src="https://code.jquery.com/jquery-3.3.1.js"></script>
</head>
<body>

<p><button type="button" id="test">Test</button></p>
<div id="log"></div>

<script>
var me = {
type: "zombie",
test: function( event ) {
// Without proxy, `this` would refer to the event target
// use event.target to reference that element.
var element = event.target;
$( element ).css( "background-color", "red" );

// With proxy, `this` refers to the me object encapsulating
// this function.
$( "#log" ).append( "Hello " + this.type + "<br>" );
$( "#test" ).off( "click", this.test );
}
};

var you = {
type: "person",
test: function( event ) {
$( "#log" ).append( this.type + " " );
}
};

// Execute you.test() in the context of the `you` object
// no matter where it is called
// i.e. the `this` keyword will refer to `you`
var youClick = $.proxy( you.test, you );

// attach click handlers to #test
$( "#test" )
// this === "zombie"; handler unbound after first click
.on( "click", $.proxy( me.test, me ) )

// this === "person"
.on( "click", youClick )

// this === "zombie"
.on( "click", $.proxy( you.test, me ) )

// this === "<button> element"
.on( "click", you.test );
</script>

</body>
</html>

example

````Change the context of a function bound to the click handler,

<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery.proxy demo</title>
<script src="https://code.jquery.com/jquery-3.3.1.js"></script>
</head>
<body>

<p><button type="button" id="test">Test</button></p>
<div id="log"></div>

<script>
var me = {
// I'm a dog
type: "dog",

// Note that event comes *after* one and two
test: function( one, two, event ) {
$( "#log" )

// `one` maps to `you`, the 1st additional
// argument in the $.proxy function call
.append( "<h3>Hello " + one.type + ":</h3>" )

// The `this` keyword refers to `me`
// (the 2nd, context, argument of $.proxy)
.append( "I am a " + this.type + ", " )

// `two` maps to `they`, the 2nd additional
// argument in the $.proxy function call
.append( "and they are " + two.type + ".<br>" )

// The event type is "click"
.append( "Thanks for " + event.type + "ing." )

// The clicked element is `event.target`,
// and its type is "button"
.append( "the " + event.target.type + "." );
}
};

var you = { type: "cat" };
var they = { type: "fish" };

// Set up handler to execute me.test() in the context
// of `me`, with `you` and `they` as additional arguments
var proxy = $.proxy( me.test, me, you, they );

$( "#test" )
.on( "click", proxy );
</script>

</body>
</html>

Type parameters

TContext
TReturn
A
B
C
D

Parameters

funсtion: function

The function whose context will be changed.
- - (this: TContext, a: A, b: B, c: C, d: D): TReturn
  - Parameters
    - this: TContext
    - a: A
    - b: B
    - c: C
    - d: D
    Returns TReturn
context: TContext

The object to which the context (this) of the function should be set.
a: A

An argument to be passed to the function referenced in the function argument.
b: B

An argument to be passed to the function referenced in the function argument.
c: C

An argument to be passed to the function referenced in the function argument.
d: D

An argument to be passed to the function referenced in the function argument.

Returns function

- (): TReturn
- Returns TReturn

Takes a function and returns a new one that will always have a particular context.

see

since

1.4

since

1.6

deprecated

Deprecated since 3.3. Use `{@link Function#bind }`.

example

````Change the context of functions bound to a click handler using the "function, context" signature. Unbind the first handler after first click.

<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery.proxy demo</title>
<script src="https://code.jquery.com/jquery-3.3.1.js"></script>
</head>
<body>

<p><button type="button" id="test">Test</button></p>
<div id="log"></div>

<script>
var me = {
type: "zombie",
test: function( event ) {
// Without proxy, `this` would refer to the event target
// use event.target to reference that element.
var element = event.target;
$( element ).css( "background-color", "red" );

// With proxy, `this` refers to the me object encapsulating
// this function.
$( "#log" ).append( "Hello " + this.type + "<br>" );
$( "#test" ).off( "click", this.test );
}
};

var you = {
type: "person",
test: function( event ) {
$( "#log" ).append( this.type + " " );
}
};

// Execute you.test() in the context of the `you` object
// no matter where it is called
// i.e. the `this` keyword will refer to `you`
var youClick = $.proxy( you.test, you );

// attach click handlers to #test
$( "#test" )
// this === "zombie"; handler unbound after first click
.on( "click", $.proxy( me.test, me ) )

// this === "person"
.on( "click", youClick )

// this === "zombie"
.on( "click", $.proxy( you.test, me ) )

// this === "<button> element"
.on( "click", you.test );
</script>

</body>
</html>

example

````Change the context of a function bound to the click handler,

<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery.proxy demo</title>
<script src="https://code.jquery.com/jquery-3.3.1.js"></script>
</head>
<body>

<p><button type="button" id="test">Test</button></p>
<div id="log"></div>

<script>
var me = {
// I'm a dog
type: "dog",

// Note that event comes *after* one and two
test: function( one, two, event ) {
$( "#log" )

// `one` maps to `you`, the 1st additional
// argument in the $.proxy function call
.append( "<h3>Hello " + one.type + ":</h3>" )

// The `this` keyword refers to `me`
// (the 2nd, context, argument of $.proxy)
.append( "I am a " + this.type + ", " )

// `two` maps to `they`, the 2nd additional
// argument in the $.proxy function call
.append( "and they are " + two.type + ".<br>" )

// The event type is "click"
.append( "Thanks for " + event.type + "ing." )

// The clicked element is `event.target`,
// and its type is "button"
.append( "the " + event.target.type + "." );
}
};

var you = { type: "cat" };
var they = { type: "fish" };

// Set up handler to execute me.test() in the context
// of `me`, with `you` and `they` as additional arguments
var proxy = $.proxy( me.test, me, you, they );

$( "#test" )
.on( "click", proxy );
</script>

</body>
</html>

Type parameters

TContext
TReturn
A
B
C

Parameters

funсtion: function

The function whose context will be changed.
- - (this: TContext, a: A, b: B, c: C): TReturn
  - Parameters
    - this: TContext
    - a: A
    - b: B
    - c: C
    Returns TReturn
context: TContext

The object to which the context (this) of the function should be set.
a: A

An argument to be passed to the function referenced in the function argument.
b: B

An argument to be passed to the function referenced in the function argument.
c: C

An argument to be passed to the function referenced in the function argument.

Returns function

- (): TReturn
- Returns TReturn

Takes a function and returns a new one that will always have a particular context.

see

since

1.4

since

1.6

deprecated

Deprecated since 3.3. Use `{@link Function#bind }`.

example

````Change the context of functions bound to a click handler using the "function, context" signature. Unbind the first handler after first click.

<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery.proxy demo</title>
<script src="https://code.jquery.com/jquery-3.3.1.js"></script>
</head>
<body>

<p><button type="button" id="test">Test</button></p>
<div id="log"></div>

<script>
var me = {
type: "zombie",
test: function( event ) {
// Without proxy, `this` would refer to the event target
// use event.target to reference that element.
var element = event.target;
$( element ).css( "background-color", "red" );

// With proxy, `this` refers to the me object encapsulating
// this function.
$( "#log" ).append( "Hello " + this.type + "<br>" );
$( "#test" ).off( "click", this.test );
}
};

var you = {
type: "person",
test: function( event ) {
$( "#log" ).append( this.type + " " );
}
};

// Execute you.test() in the context of the `you` object
// no matter where it is called
// i.e. the `this` keyword will refer to `you`
var youClick = $.proxy( you.test, you );

// attach click handlers to #test
$( "#test" )
// this === "zombie"; handler unbound after first click
.on( "click", $.proxy( me.test, me ) )

// this === "person"
.on( "click", youClick )

// this === "zombie"
.on( "click", $.proxy( you.test, me ) )

// this === "<button> element"
.on( "click", you.test );
</script>

</body>
</html>

example

````Change the context of a function bound to the click handler,

<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery.proxy demo</title>
<script src="https://code.jquery.com/jquery-3.3.1.js"></script>
</head>
<body>

<p><button type="button" id="test">Test</button></p>
<div id="log"></div>

<script>
var me = {
// I'm a dog
type: "dog",

// Note that event comes *after* one and two
test: function( one, two, event ) {
$( "#log" )

// `one` maps to `you`, the 1st additional
// argument in the $.proxy function call
.append( "<h3>Hello " + one.type + ":</h3>" )

// The `this` keyword refers to `me`
// (the 2nd, context, argument of $.proxy)
.append( "I am a " + this.type + ", " )

// `two` maps to `they`, the 2nd additional
// argument in the $.proxy function call
.append( "and they are " + two.type + ".<br>" )

// The event type is "click"
.append( "Thanks for " + event.type + "ing." )

// The clicked element is `event.target`,
// and its type is "button"
.append( "the " + event.target.type + "." );
}
};

var you = { type: "cat" };
var they = { type: "fish" };

// Set up handler to execute me.test() in the context
// of `me`, with `you` and `they` as additional arguments
var proxy = $.proxy( me.test, me, you, they );

$( "#test" )
.on( "click", proxy );
</script>

</body>
</html>

Type parameters

TContext
TReturn
A
B

Parameters

funсtion: function

The function whose context will be changed.
- - (this: TContext, a: A, b: B): TReturn
  - Parameters
    - this: TContext
    - a: A
    - b: B
    Returns TReturn
context: TContext

The object to which the context (this) of the function should be set.
a: A

An argument to be passed to the function referenced in the function argument.
b: B

An argument to be passed to the function referenced in the function argument.

Returns function

- (): TReturn
- Returns TReturn

Takes a function and returns a new one that will always have a particular context.

see

since

1.4`

since

1.6

deprecated

Deprecated since 3.3. Use `{@link Function#bind }`.

example

````Change the context of functions bound to a click handler using the "function, context" signature. Unbind the first handler after first click.

<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery.proxy demo</title>
<script src="https://code.jquery.com/jquery-3.3.1.js"></script>
</head>
<body>

<p><button type="button" id="test">Test</button></p>
<div id="log"></div>

<script>
var me = {
type: "zombie",
test: function( event ) {
// Without proxy, `this` would refer to the event target
// use event.target to reference that element.
var element = event.target;
$( element ).css( "background-color", "red" );

// With proxy, `this` refers to the me object encapsulating
// this function.
$( "#log" ).append( "Hello " + this.type + "<br>" );
$( "#test" ).off( "click", this.test );
}
};

var you = {
type: "person",
test: function( event ) {
$( "#log" ).append( this.type + " " );
}
};

// Execute you.test() in the context of the `you` object
// no matter where it is called
// i.e. the `this` keyword will refer to `you`
var youClick = $.proxy( you.test, you );

// attach click handlers to #test
$( "#test" )
// this === "zombie"; handler unbound after first click
.on( "click", $.proxy( me.test, me ) )

// this === "person"
.on( "click", youClick )

// this === "zombie"
.on( "click", $.proxy( you.test, me ) )

// this === "<button> element"
.on( "click", you.test );
</script>

</body>
</html>

example

````Change the context of a function bound to the click handler,

<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery.proxy demo</title>
<script src="https://code.jquery.com/jquery-3.3.1.js"></script>
</head>
<body>

<p><button type="button" id="test">Test</button></p>
<div id="log"></div>

<script>
var me = {
// I'm a dog
type: "dog",

// Note that event comes *after* one and two
test: function( one, two, event ) {
$( "#log" )

// `one` maps to `you`, the 1st additional
// argument in the $.proxy function call
.append( "<h3>Hello " + one.type + ":</h3>" )

// The `this` keyword refers to `me`
// (the 2nd, context, argument of $.proxy)
.append( "I am a " + this.type + ", " )

// `two` maps to `they`, the 2nd additional
// argument in the $.proxy function call
.append( "and they are " + two.type + ".<br>" )

// The event type is "click"
.append( "Thanks for " + event.type + "ing." )

// The clicked element is `event.target`,
// and its type is "button"
.append( "the " + event.target.type + "." );
}
};

var you = { type: "cat" };
var they = { type: "fish" };

// Set up handler to execute me.test() in the context
// of `me`, with `you` and `they` as additional arguments
var proxy = $.proxy( me.test, me, you, they );

$( "#test" )
.on( "click", proxy );
</script>

</body>
</html>

Type parameters

TContext
TReturn
A

Parameters

funсtion: function

The function whose context will be changed.
- - (this: TContext, a: A): TReturn
  - Parameters
    - this: TContext
    - a: A
    Returns TReturn
context: TContext

The object to which the context (this) of the function should be set.
a: A

An argument to be passed to the function referenced in the function argument.

Returns function

- (): TReturn
- Returns TReturn

Takes a function and returns a new one that will always have a particular context.

see

since

1.4

since

1.6

deprecated

Deprecated since 3.3. Use `{@link Function#bind }`.

example

````Change the context of functions bound to a click handler using the "function, context" signature. Unbind the first handler after first click.

<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery.proxy demo</title>
<script src="https://code.jquery.com/jquery-3.3.1.js"></script>
</head>
<body>

<p><button type="button" id="test">Test</button></p>
<div id="log"></div>

<script>
var me = {
type: "zombie",
test: function( event ) {
// Without proxy, `this` would refer to the event target
// use event.target to reference that element.
var element = event.target;
$( element ).css( "background-color", "red" );

// With proxy, `this` refers to the me object encapsulating
// this function.
$( "#log" ).append( "Hello " + this.type + "<br>" );
$( "#test" ).off( "click", this.test );
}
};

var you = {
type: "person",
test: function( event ) {
$( "#log" ).append( this.type + " " );
}
};

// Execute you.test() in the context of the `you` object
// no matter where it is called
// i.e. the `this` keyword will refer to `you`
var youClick = $.proxy( you.test, you );

// attach click handlers to #test
$( "#test" )
// this === "zombie"; handler unbound after first click
.on( "click", $.proxy( me.test, me ) )

// this === "person"
.on( "click", youClick )

// this === "zombie"
.on( "click", $.proxy( you.test, me ) )

// this === "<button> element"
.on( "click", you.test );
</script>

</body>
</html>

example

````Change the context of a function bound to the click handler,

<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery.proxy demo</title>
<script src="https://code.jquery.com/jquery-3.3.1.js"></script>
</head>
<body>

<p><button type="button" id="test">Test</button></p>
<div id="log"></div>

<script>
var me = {
// I'm a dog
type: "dog",

// Note that event comes *after* one and two
test: function( one, two, event ) {
$( "#log" )

// `one` maps to `you`, the 1st additional
// argument in the $.proxy function call
.append( "<h3>Hello " + one.type + ":</h3>" )

// The `this` keyword refers to `me`
// (the 2nd, context, argument of $.proxy)
.append( "I am a " + this.type + ", " )

// `two` maps to `they`, the 2nd additional
// argument in the $.proxy function call
.append( "and they are " + two.type + ".<br>" )

// The event type is "click"
.append( "Thanks for " + event.type + "ing." )

// The clicked element is `event.target`,
// and its type is "button"
.append( "the " + event.target.type + "." );
}
};

var you = { type: "cat" };
var they = { type: "fish" };

// Set up handler to execute me.test() in the context
// of `me`, with `you` and `they` as additional arguments
var proxy = $.proxy( me.test, me, you, they );

$( "#test" )
.on( "click", proxy );
</script>

</body>
</html>

Type parameters

TContext
TReturn

Parameters

funсtion: function

The function whose context will be changed.
- - (this: TContext): TReturn
  - Parameters
    - this: TContext
    Returns TReturn
context: TContext

The object to which the context (this) of the function should be set.

Returns function

- (): TReturn
- Returns TReturn

Takes a function and returns a new one that will always have a particular context.

see

since

1.4

since

1.6

deprecated

Deprecated since 3.3. Use `{@link Function#bind }`.

example

````Change the context of functions bound to a click handler using the "function, context" signature. Unbind the first handler after first click.

<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery.proxy demo</title>
<script src="https://code.jquery.com/jquery-3.3.1.js"></script>
</head>
<body>

<p><button type="button" id="test">Test</button></p>
<div id="log"></div>

<script>
var me = {
type: "zombie",
test: function( event ) {
// Without proxy, `this` would refer to the event target
// use event.target to reference that element.
var element = event.target;
$( element ).css( "background-color", "red" );

// With proxy, `this` refers to the me object encapsulating
// this function.
$( "#log" ).append( "Hello " + this.type + "<br>" );
$( "#test" ).off( "click", this.test );
}
};

var you = {
type: "person",
test: function( event ) {
$( "#log" ).append( this.type + " " );
}
};

// Execute you.test() in the context of the `you` object
// no matter where it is called
// i.e. the `this` keyword will refer to `you`
var youClick = $.proxy( you.test, you );

// attach click handlers to #test
$( "#test" )
// this === "zombie"; handler unbound after first click
.on( "click", $.proxy( me.test, me ) )

// this === "person"
.on( "click", youClick )

// this === "zombie"
.on( "click", $.proxy( you.test, me ) )

// this === "<button> element"
.on( "click", you.test );
</script>

</body>
</html>

example

````Change the context of a function bound to the click handler,

<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery.proxy demo</title>
<script src="https://code.jquery.com/jquery-3.3.1.js"></script>
</head>
<body>

<p><button type="button" id="test">Test</button></p>
<div id="log"></div>

<script>
var me = {
// I'm a dog
type: "dog",

// Note that event comes *after* one and two
test: function( one, two, event ) {
$( "#log" )

// `one` maps to `you`, the 1st additional
// argument in the $.proxy function call
.append( "<h3>Hello " + one.type + ":</h3>" )

// The `this` keyword refers to `me`
// (the 2nd, context, argument of $.proxy)
.append( "I am a " + this.type + ", " )

// `two` maps to `they`, the 2nd additional
// argument in the $.proxy function call
.append( "and they are " + two.type + ".<br>" )

// The event type is "click"
.append( "Thanks for " + event.type + "ing." )

// The clicked element is `event.target`,
// and its type is "button"
.append( "the " + event.target.type + "." );
}
};

var you = { type: "cat" };
var they = { type: "fish" };

// Set up handler to execute me.test() in the context
// of `me`, with `you` and `they` as additional arguments
var proxy = $.proxy( me.test, me, you, they );

$( "#test" )
.on( "click", proxy );
</script>

</body>
</html>

Type parameters

TContext
TReturn
A
B
C
D
E
F
G
T

Parameters

funсtion: function

The function whose context will be changed.
- - (this: TContext, a: A, b: B, c: C, d: D, e: E, f: F, g: G, t: T): TReturn
  - Parameters
    - this: TContext
    - a: A
    - b: B
    - c: C
    - d: D
    - e: E
    - f: F
    - g: G
    - t: T
    Returns TReturn
context: TContext

The object to which the context (this) of the function should be set.
a: A

An argument to be passed to the function referenced in the function argument.
b: B

An argument to be passed to the function referenced in the function argument.
c: C

An argument to be passed to the function referenced in the function argument.
d: D

An argument to be passed to the function referenced in the function argument.
e: E

An argument to be passed to the function referenced in the function argument.
f: F

An argument to be passed to the function referenced in the function argument.
g: G

An argument to be passed to the function referenced in the function argument.

Returns function

- (t: T): TReturn
- Parameters
  - t: T
  Returns TReturn

Takes a function and returns a new one that will always have a particular context.

see

since

1.4

since

1.6

deprecated

Deprecated since 3.3. Use `{@link Function#bind }`.

example

````Change the context of functions bound to a click handler using the "function, context" signature. Unbind the first handler after first click.

<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery.proxy demo</title>
<script src="https://code.jquery.com/jquery-3.3.1.js"></script>
</head>
<body>

<p><button type="button" id="test">Test</button></p>
<div id="log"></div>

<script>
var me = {
type: "zombie",
test: function( event ) {
// Without proxy, `this` would refer to the event target
// use event.target to reference that element.
var element = event.target;
$( element ).css( "background-color", "red" );

// With proxy, `this` refers to the me object encapsulating
// this function.
$( "#log" ).append( "Hello " + this.type + "<br>" );
$( "#test" ).off( "click", this.test );
}
};

var you = {
type: "person",
test: function( event ) {
$( "#log" ).append( this.type + " " );
}
};

// Execute you.test() in the context of the `you` object
// no matter where it is called
// i.e. the `this` keyword will refer to `you`
var youClick = $.proxy( you.test, you );

// attach click handlers to #test
$( "#test" )
// this === "zombie"; handler unbound after first click
.on( "click", $.proxy( me.test, me ) )

// this === "person"
.on( "click", youClick )

// this === "zombie"
.on( "click", $.proxy( you.test, me ) )

// this === "<button> element"
.on( "click", you.test );
</script>

</body>
</html>

example

````Change the context of a function bound to the click handler,

<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery.proxy demo</title>
<script src="https://code.jquery.com/jquery-3.3.1.js"></script>
</head>
<body>

<p><button type="button" id="test">Test</button></p>
<div id="log"></div>

<script>
var me = {
// I'm a dog
type: "dog",

// Note that event comes *after* one and two
test: function( one, two, event ) {
$( "#log" )

// `one` maps to `you`, the 1st additional
// argument in the $.proxy function call
.append( "<h3>Hello " + one.type + ":</h3>" )

// The `this` keyword refers to `me`
// (the 2nd, context, argument of $.proxy)
.append( "I am a " + this.type + ", " )

// `two` maps to `they`, the 2nd additional
// argument in the $.proxy function call
.append( "and they are " + two.type + ".<br>" )

// The event type is "click"
.append( "Thanks for " + event.type + "ing." )

// The clicked element is `event.target`,
// and its type is "button"
.append( "the " + event.target.type + "." );
}
};

var you = { type: "cat" };
var they = { type: "fish" };

// Set up handler to execute me.test() in the context
// of `me`, with `you` and `they` as additional arguments
var proxy = $.proxy( me.test, me, you, they );

$( "#test" )
.on( "click", proxy );
</script>

</body>
</html>

Type parameters

TContext
TReturn
A
B
C
D
E
F
T

Parameters

funсtion: function

The function whose context will be changed.
- - (this: TContext, a: A, b: B, c: C, d: D, e: E, f: F, t: T): TReturn
  - Parameters
    - this: TContext
    - a: A
    - b: B
    - c: C
    - d: D
    - e: E
    - f: F
    - t: T
    Returns TReturn
context: TContext

The object to which the context (this) of the function should be set.
a: A

An argument to be passed to the function referenced in the function argument.
b: B

An argument to be passed to the function referenced in the function argument.
c: C

An argument to be passed to the function referenced in the function argument.
d: D

An argument to be passed to the function referenced in the function argument.
e: E

An argument to be passed to the function referenced in the function argument.
f: F

An argument to be passed to the function referenced in the function argument.

Returns function

- (t: T): TReturn
- Parameters
  - t: T
  Returns TReturn

Takes a function and returns a new one that will always have a particular context.

see

since

1.4

since

1.6

deprecated

Deprecated since 3.3. Use `{@link Function#bind }`.

example

````Change the context of functions bound to a click handler using the "function, context" signature. Unbind the first handler after first click.

<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery.proxy demo</title>
<script src="https://code.jquery.com/jquery-3.3.1.js"></script>
</head>
<body>

<p><button type="button" id="test">Test</button></p>
<div id="log"></div>

<script>
var me = {
type: "zombie",
test: function( event ) {
// Without proxy, `this` would refer to the event target
// use event.target to reference that element.
var element = event.target;
$( element ).css( "background-color", "red" );

// With proxy, `this` refers to the me object encapsulating
// this function.
$( "#log" ).append( "Hello " + this.type + "<br>" );
$( "#test" ).off( "click", this.test );
}
};

var you = {
type: "person",
test: function( event ) {
$( "#log" ).append( this.type + " " );
}
};

// Execute you.test() in the context of the `you` object
// no matter where it is called
// i.e. the `this` keyword will refer to `you`
var youClick = $.proxy( you.test, you );

// attach click handlers to #test
$( "#test" )
// this === "zombie"; handler unbound after first click
.on( "click", $.proxy( me.test, me ) )

// this === "person"
.on( "click", youClick )

// this === "zombie"
.on( "click", $.proxy( you.test, me ) )

// this === "<button> element"
.on( "click", you.test );
</script>

</body>
</html>

example

````Change the context of a function bound to the click handler,

<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery.proxy demo</title>
<script src="https://code.jquery.com/jquery-3.3.1.js"></script>
</head>
<body>

<p><button type="button" id="test">Test</button></p>
<div id="log"></div>

<script>
var me = {
// I'm a dog
type: "dog",

// Note that event comes *after* one and two
test: function( one, two, event ) {
$( "#log" )

// `one` maps to `you`, the 1st additional
// argument in the $.proxy function call
.append( "<h3>Hello " + one.type + ":</h3>" )

// The `this` keyword refers to `me`
// (the 2nd, context, argument of $.proxy)
.append( "I am a " + this.type + ", " )

// `two` maps to `they`, the 2nd additional
// argument in the $.proxy function call
.append( "and they are " + two.type + ".<br>" )

// The event type is "click"
.append( "Thanks for " + event.type + "ing." )

// The clicked element is `event.target`,
// and its type is "button"
.append( "the " + event.target.type + "." );
}
};

var you = { type: "cat" };
var they = { type: "fish" };

// Set up handler to execute me.test() in the context
// of `me`, with `you` and `they` as additional arguments
var proxy = $.proxy( me.test, me, you, they );

$( "#test" )
.on( "click", proxy );
</script>

</body>
</html>

Type parameters

TContext
TReturn
A
B
C
D
E
T

Parameters

funсtion: function

The function whose context will be changed.
- - (this: TContext, a: A, b: B, c: C, d: D, e: E, t: T): TReturn
  - Parameters
    - this: TContext
    - a: A
    - b: B
    - c: C
    - d: D
    - e: E
    - t: T
    Returns TReturn
context: TContext

The object to which the context (this) of the function should be set.
a: A

An argument to be passed to the function referenced in the function argument.
b: B

An argument to be passed to the function referenced in the function argument.
c: C

An argument to be passed to the function referenced in the function argument.
d: D

An argument to be passed to the function referenced in the function argument.
e: E

An argument to be passed to the function referenced in the function argument.

Returns function

- (t: T): TReturn
- Parameters
  - t: T
  Returns TReturn

Takes a function and returns a new one that will always have a particular context.

see

since

1.4

since

1.6

deprecated

Deprecated since 3.3. Use `{@link Function#bind }`.

example

````Change the context of functions bound to a click handler using the "function, context" signature. Unbind the first handler after first click.

<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery.proxy demo</title>
<script src="https://code.jquery.com/jquery-3.3.1.js"></script>
</head>
<body>

<p><button type="button" id="test">Test</button></p>
<div id="log"></div>

<script>
var me = {
type: "zombie",
test: function( event ) {
// Without proxy, `this` would refer to the event target
// use event.target to reference that element.
var element = event.target;
$( element ).css( "background-color", "red" );

// With proxy, `this` refers to the me object encapsulating
// this function.
$( "#log" ).append( "Hello " + this.type + "<br>" );
$( "#test" ).off( "click", this.test );
}
};

var you = {
type: "person",
test: function( event ) {
$( "#log" ).append( this.type + " " );
}
};

// Execute you.test() in the context of the `you` object
// no matter where it is called
// i.e. the `this` keyword will refer to `you`
var youClick = $.proxy( you.test, you );

// attach click handlers to #test
$( "#test" )
// this === "zombie"; handler unbound after first click
.on( "click", $.proxy( me.test, me ) )

// this === "person"
.on( "click", youClick )

// this === "zombie"
.on( "click", $.proxy( you.test, me ) )

// this === "<button> element"
.on( "click", you.test );
</script>

</body>
</html>

example

````Change the context of a function bound to the click handler,

<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery.proxy demo</title>
<script src="https://code.jquery.com/jquery-3.3.1.js"></script>
</head>
<body>

<p><button type="button" id="test">Test</button></p>
<div id="log"></div>

<script>
var me = {
// I'm a dog
type: "dog",

// Note that event comes *after* one and two
test: function( one, two, event ) {
$( "#log" )

// `one` maps to `you`, the 1st additional
// argument in the $.proxy function call
.append( "<h3>Hello " + one.type + ":</h3>" )

// The `this` keyword refers to `me`
// (the 2nd, context, argument of $.proxy)
.append( "I am a " + this.type + ", " )

// `two` maps to `they`, the 2nd additional
// argument in the $.proxy function call
.append( "and they are " + two.type + ".<br>" )

// The event type is "click"
.append( "Thanks for " + event.type + "ing." )

// The clicked element is `event.target`,
// and its type is "button"
.append( "the " + event.target.type + "." );
}
};

var you = { type: "cat" };
var they = { type: "fish" };

// Set up handler to execute me.test() in the context
// of `me`, with `you` and `they` as additional arguments
var proxy = $.proxy( me.test, me, you, they );

$( "#test" )
.on( "click", proxy );
</script>

</body>
</html>

Type parameters

TContext
TReturn
A
B
C
D
T

Parameters

funсtion: function

The function whose context will be changed.
- - (this: TContext, a: A, b: B, c: C, d: D, t: T): TReturn
  - Parameters
    - this: TContext
    - a: A
    - b: B
    - c: C
    - d: D
    - t: T
    Returns TReturn
context: TContext

The object to which the context (this) of the function should be set.
a: A

An argument to be passed to the function referenced in the function argument.
b: B

An argument to be passed to the function referenced in the function argument.
c: C

An argument to be passed to the function referenced in the function argument.
d: D

An argument to be passed to the function referenced in the function argument.

Returns function

- (t: T): TReturn
- Parameters
  - t: T
  Returns TReturn

Takes a function and returns a new one that will always have a particular context.

see

since

1.4

since

1.6

deprecated

Deprecated since 3.3. Use `{@link Function#bind }`.

example

````Change the context of functions bound to a click handler using the "function, context" signature. Unbind the first handler after first click.

<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery.proxy demo</title>
<script src="https://code.jquery.com/jquery-3.3.1.js"></script>
</head>
<body>

<p><button type="button" id="test">Test</button></p>
<div id="log"></div>

<script>
var me = {
type: "zombie",
test: function( event ) {
// Without proxy, `this` would refer to the event target
// use event.target to reference that element.
var element = event.target;
$( element ).css( "background-color", "red" );

// With proxy, `this` refers to the me object encapsulating
// this function.
$( "#log" ).append( "Hello " + this.type + "<br>" );
$( "#test" ).off( "click", this.test );
}
};

var you = {
type: "person",
test: function( event ) {
$( "#log" ).append( this.type + " " );
}
};

// Execute you.test() in the context of the `you` object
// no matter where it is called
// i.e. the `this` keyword will refer to `you`
var youClick = $.proxy( you.test, you );

// attach click handlers to #test
$( "#test" )
// this === "zombie"; handler unbound after first click
.on( "click", $.proxy( me.test, me ) )

// this === "person"
.on( "click", youClick )

// this === "zombie"
.on( "click", $.proxy( you.test, me ) )

// this === "<button> element"
.on( "click", you.test );
</script>

</body>
</html>

example

````Change the context of a function bound to the click handler,

<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery.proxy demo</title>
<script src="https://code.jquery.com/jquery-3.3.1.js"></script>
</head>
<body>

<p><button type="button" id="test">Test</button></p>
<div id="log"></div>

<script>
var me = {
// I'm a dog
type: "dog",

// Note that event comes *after* one and two
test: function( one, two, event ) {
$( "#log" )

// `one` maps to `you`, the 1st additional
// argument in the $.proxy function call
.append( "<h3>Hello " + one.type + ":</h3>" )

// The `this` keyword refers to `me`
// (the 2nd, context, argument of $.proxy)
.append( "I am a " + this.type + ", " )

// `two` maps to `they`, the 2nd additional
// argument in the $.proxy function call
.append( "and they are " + two.type + ".<br>" )

// The event type is "click"
.append( "Thanks for " + event.type + "ing." )

// The clicked element is `event.target`,
// and its type is "button"
.append( "the " + event.target.type + "." );
}
};

var you = { type: "cat" };
var they = { type: "fish" };

// Set up handler to execute me.test() in the context
// of `me`, with `you` and `they` as additional arguments
var proxy = $.proxy( me.test, me, you, they );

$( "#test" )
.on( "click", proxy );
</script>

</body>
</html>

Type parameters

TContext
TReturn
A
B
C
T

Parameters

funсtion: function

The function whose context will be changed.
- - (this: TContext, a: A, b: B, c: C, t: T): TReturn
  - Parameters
    - this: TContext
    - a: A
    - b: B
    - c: C
    - t: T
    Returns TReturn
context: TContext

The object to which the context (this) of the function should be set.
a: A

An argument to be passed to the function referenced in the function argument.
b: B

An argument to be passed to the function referenced in the function argument.
c: C

An argument to be passed to the function referenced in the function argument.

Returns function

- (t: T): TReturn
- Parameters
  - t: T
  Returns TReturn

Takes a function and returns a new one that will always have a particular context.

see

since

1.4

since

1.6

deprecated

Deprecated since 3.3. Use `{@link Function#bind }`.

example

````Change the context of functions bound to a click handler using the "function, context" signature. Unbind the first handler after first click.

<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery.proxy demo</title>
<script src="https://code.jquery.com/jquery-3.3.1.js"></script>
</head>
<body>

<p><button type="button" id="test">Test</button></p>
<div id="log"></div>

<script>
var me = {
type: "zombie",
test: function( event ) {
// Without proxy, `this` would refer to the event target
// use event.target to reference that element.
var element = event.target;
$( element ).css( "background-color", "red" );

// With proxy, `this` refers to the me object encapsulating
// this function.
$( "#log" ).append( "Hello " + this.type + "<br>" );
$( "#test" ).off( "click", this.test );
}
};

var you = {
type: "person",
test: function( event ) {
$( "#log" ).append( this.type + " " );
}
};

// Execute you.test() in the context of the `you` object
// no matter where it is called
// i.e. the `this` keyword will refer to `you`
var youClick = $.proxy( you.test, you );

// attach click handlers to #test
$( "#test" )
// this === "zombie"; handler unbound after first click
.on( "click", $.proxy( me.test, me ) )

// this === "person"
.on( "click", youClick )

// this === "zombie"
.on( "click", $.proxy( you.test, me ) )

// this === "<button> element"
.on( "click", you.test );
</script>

</body>
</html>

example

````Change the context of a function bound to the click handler,

<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery.proxy demo</title>
<script src="https://code.jquery.com/jquery-3.3.1.js"></script>
</head>
<body>

<p><button type="button" id="test">Test</button></p>
<div id="log"></div>

<script>
var me = {
// I'm a dog
type: "dog",

// Note that event comes *after* one and two
test: function( one, two, event ) {
$( "#log" )

// `one` maps to `you`, the 1st additional
// argument in the $.proxy function call
.append( "<h3>Hello " + one.type + ":</h3>" )

// The `this` keyword refers to `me`
// (the 2nd, context, argument of $.proxy)
.append( "I am a " + this.type + ", " )

// `two` maps to `they`, the 2nd additional
// argument in the $.proxy function call
.append( "and they are " + two.type + ".<br>" )

// The event type is "click"
.append( "Thanks for " + event.type + "ing." )

// The clicked element is `event.target`,
// and its type is "button"
.append( "the " + event.target.type + "." );
}
};

var you = { type: "cat" };
var they = { type: "fish" };

// Set up handler to execute me.test() in the context
// of `me`, with `you` and `they` as additional arguments
var proxy = $.proxy( me.test, me, you, they );

$( "#test" )
.on( "click", proxy );
</script>

</body>
</html>

Type parameters

TContext
TReturn
A
B
T

Parameters

funсtion: function

The function whose context will be changed.
- - (this: TContext, a: A, b: B, t: T): TReturn
  - Parameters
    - this: TContext
    - a: A
    - b: B
    - t: T
    Returns TReturn
context: TContext

The object to which the context (this) of the function should be set.
a: A

An argument to be passed to the function referenced in the function argument.
b: B

An argument to be passed to the function referenced in the function argument.

Returns function

- (t: T): TReturn
- Parameters
  - t: T
  Returns TReturn

Takes a function and returns a new one that will always have a particular context.

see

since

1.4

since

1.6

deprecated

Deprecated since 3.3. Use `{@link Function#bind }`.

example

````Change the context of functions bound to a click handler using the "function, context" signature. Unbind the first handler after first click.

<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery.proxy demo</title>
<script src="https://code.jquery.com/jquery-3.3.1.js"></script>
</head>
<body>

<p><button type="button" id="test">Test</button></p>
<div id="log"></div>

<script>
var me = {
type: "zombie",
test: function( event ) {
// Without proxy, `this` would refer to the event target
// use event.target to reference that element.
var element = event.target;
$( element ).css( "background-color", "red" );

// With proxy, `this` refers to the me object encapsulating
// this function.
$( "#log" ).append( "Hello " + this.type + "<br>" );
$( "#test" ).off( "click", this.test );
}
};

var you = {
type: "person",
test: function( event ) {
$( "#log" ).append( this.type + " " );
}
};

// Execute you.test() in the context of the `you` object
// no matter where it is called
// i.e. the `this` keyword will refer to `you`
var youClick = $.proxy( you.test, you );

// attach click handlers to #test
$( "#test" )
// this === "zombie"; handler unbound after first click
.on( "click", $.proxy( me.test, me ) )

// this === "person"
.on( "click", youClick )

// this === "zombie"
.on( "click", $.proxy( you.test, me ) )

// this === "<button> element"
.on( "click", you.test );
</script>

</body>
</html>

example

````Change the context of a function bound to the click handler,

<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery.proxy demo</title>
<script src="https://code.jquery.com/jquery-3.3.1.js"></script>
</head>
<body>

<p><button type="button" id="test">Test</button></p>
<div id="log"></div>

<script>
var me = {
// I'm a dog
type: "dog",

// Note that event comes *after* one and two
test: function( one, two, event ) {
$( "#log" )

// `one` maps to `you`, the 1st additional
// argument in the $.proxy function call
.append( "<h3>Hello " + one.type + ":</h3>" )

// The `this` keyword refers to `me`
// (the 2nd, context, argument of $.proxy)
.append( "I am a " + this.type + ", " )

// `two` maps to `they`, the 2nd additional
// argument in the $.proxy function call
.append( "and they are " + two.type + ".<br>" )

// The event type is "click"
.append( "Thanks for " + event.type + "ing." )

// The clicked element is `event.target`,
// and its type is "button"
.append( "the " + event.target.type + "." );
}
};

var you = { type: "cat" };
var they = { type: "fish" };

// Set up handler to execute me.test() in the context
// of `me`, with `you` and `they` as additional arguments
var proxy = $.proxy( me.test, me, you, they );

$( "#test" )
.on( "click", proxy );
</script>

</body>
</html>

Type parameters

TContext
TReturn
A
T

Parameters

funсtion: function

The function whose context will be changed.
- - (this: TContext, a: A, t: T): TReturn
  - Parameters
    - this: TContext
    - a: A
    - t: T
    Returns TReturn
context: TContext

The object to which the context (this) of the function should be set.
a: A

An argument to be passed to the function referenced in the function argument.

Returns function

- (t: T): TReturn
- Parameters
  - t: T
  Returns TReturn

Takes a function and returns a new one that will always have a particular context.

see

since

1.4

since

1.6

deprecated

Deprecated since 3.3. Use `{@link Function#bind }`.

example

````Change the context of functions bound to a click handler using the "function, context" signature. Unbind the first handler after first click.

<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery.proxy demo</title>
<script src="https://code.jquery.com/jquery-3.3.1.js"></script>
</head>
<body>

<p><button type="button" id="test">Test</button></p>
<div id="log"></div>

<script>
var me = {
type: "zombie",
test: function( event ) {
// Without proxy, `this` would refer to the event target
// use event.target to reference that element.
var element = event.target;
$( element ).css( "background-color", "red" );

// With proxy, `this` refers to the me object encapsulating
// this function.
$( "#log" ).append( "Hello " + this.type + "<br>" );
$( "#test" ).off( "click", this.test );
}
};

var you = {
type: "person",
test: function( event ) {
$( "#log" ).append( this.type + " " );
}
};

// Execute you.test() in the context of the `you` object
// no matter where it is called
// i.e. the `this` keyword will refer to `you`
var youClick = $.proxy( you.test, you );

// attach click handlers to #test
$( "#test" )
// this === "zombie"; handler unbound after first click
.on( "click", $.proxy( me.test, me ) )

// this === "person"
.on( "click", youClick )

// this === "zombie"
.on( "click", $.proxy( you.test, me ) )

// this === "<button> element"
.on( "click", you.test );
</script>

</body>
</html>

example

````Change the context of a function bound to the click handler,

<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery.proxy demo</title>
<script src="https://code.jquery.com/jquery-3.3.1.js"></script>
</head>
<body>

<p><button type="button" id="test">Test</button></p>
<div id="log"></div>

<script>
var me = {
// I'm a dog
type: "dog",

// Note that event comes *after* one and two
test: function( one, two, event ) {
$( "#log" )

// `one` maps to `you`, the 1st additional
// argument in the $.proxy function call
.append( "<h3>Hello " + one.type + ":</h3>" )

// The `this` keyword refers to `me`
// (the 2nd, context, argument of $.proxy)
.append( "I am a " + this.type + ", " )

// `two` maps to `they`, the 2nd additional
// argument in the $.proxy function call
.append( "and they are " + two.type + ".<br>" )

// The event type is "click"
.append( "Thanks for " + event.type + "ing." )

// The clicked element is `event.target`,
// and its type is "button"
.append( "the " + event.target.type + "." );
}
};

var you = { type: "cat" };
var they = { type: "fish" };

// Set up handler to execute me.test() in the context
// of `me`, with `you` and `they` as additional arguments
var proxy = $.proxy( me.test, me, you, they );

$( "#test" )
.on( "click", proxy );
</script>

</body>
</html>

Type parameters

TContext
TReturn
T

Parameters

funсtion: function

The function whose context will be changed.
- - (this: TContext, t: T): TReturn
  - Parameters
    - this: TContext
    - t: T
    Returns TReturn
context: TContext

The object to which the context (this) of the function should be set.

Returns function

- (t: T): TReturn
- Parameters
  - t: T
  Returns TReturn

Takes a function and returns a new one that will always have a particular context.

see

since

1.4

since

1.6

deprecated

Deprecated since 3.3. Use `{@link Function#bind }`.

example

````Change the context of functions bound to a click handler using the "function, context" signature. Unbind the first handler after first click.

<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery.proxy demo</title>
<script src="https://code.jquery.com/jquery-3.3.1.js"></script>
</head>
<body>

<p><button type="button" id="test">Test</button></p>
<div id="log"></div>

<script>
var me = {
type: "zombie",
test: function( event ) {
// Without proxy, `this` would refer to the event target
// use event.target to reference that element.
var element = event.target;
$( element ).css( "background-color", "red" );

// With proxy, `this` refers to the me object encapsulating
// this function.
$( "#log" ).append( "Hello " + this.type + "<br>" );
$( "#test" ).off( "click", this.test );
}
};

var you = {
type: "person",
test: function( event ) {
$( "#log" ).append( this.type + " " );
}
};

// Execute you.test() in the context of the `you` object
// no matter where it is called
// i.e. the `this` keyword will refer to `you`
var youClick = $.proxy( you.test, you );

// attach click handlers to #test
$( "#test" )
// this === "zombie"; handler unbound after first click
.on( "click", $.proxy( me.test, me ) )

// this === "person"
.on( "click", youClick )

// this === "zombie"
.on( "click", $.proxy( you.test, me ) )

// this === "<button> element"
.on( "click", you.test );
</script>

</body>
</html>

example

````Change the context of a function bound to the click handler,

<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery.proxy demo</title>
<script src="https://code.jquery.com/jquery-3.3.1.js"></script>
</head>
<body>

<p><button type="button" id="test">Test</button></p>
<div id="log"></div>

<script>
var me = {
// I'm a dog
type: "dog",

// Note that event comes *after* one and two
test: function( one, two, event ) {
$( "#log" )

// `one` maps to `you`, the 1st additional
// argument in the $.proxy function call
.append( "<h3>Hello " + one.type + ":</h3>" )

// The `this` keyword refers to `me`
// (the 2nd, context, argument of $.proxy)
.append( "I am a " + this.type + ", " )

// `two` maps to `they`, the 2nd additional
// argument in the $.proxy function call
.append( "and they are " + two.type + ".<br>" )

// The event type is "click"
.append( "Thanks for " + event.type + "ing." )

// The clicked element is `event.target`,
// and its type is "button"
.append( "the " + event.target.type + "." );
}
};

var you = { type: "cat" };
var they = { type: "fish" };

// Set up handler to execute me.test() in the context
// of `me`, with `you` and `they` as additional arguments
var proxy = $.proxy( me.test, me, you, they );

$( "#test" )
.on( "click", proxy );
</script>

</body>
</html>

Type parameters

TContext
TReturn
A
B
C
D
E
F
G
T
U

Parameters

funсtion: function

The function whose context will be changed.
- - (this: TContext, a: A, b: B, c: C, d: D, e: E, f: F, g: G, t: T, u: U): TReturn
  - Parameters
    - this: TContext
    - a: A
    - b: B
    - c: C
    - d: D
    - e: E
    - f: F
    - g: G
    - t: T
    - u: U
    Returns TReturn
context: TContext

The object to which the context (this) of the function should be set.
a: A

An argument to be passed to the function referenced in the function argument.
b: B

An argument to be passed to the function referenced in the function argument.
c: C

An argument to be passed to the function referenced in the function argument.
d: D

An argument to be passed to the function referenced in the function argument.
e: E

An argument to be passed to the function referenced in the function argument.
f: F

An argument to be passed to the function referenced in the function argument.
g: G

An argument to be passed to the function referenced in the function argument.

Returns function

- (t: T, u: U): TReturn
- Parameters
  - t: T
  - u: U
  Returns TReturn

Takes a function and returns a new one that will always have a particular context.

see

since

1.4

since

1.6

deprecated

Deprecated since 3.3. Use `{@link Function#bind }`.

example

````Change the context of functions bound to a click handler using the "function, context" signature. Unbind the first handler after first click.

<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery.proxy demo</title>
<script src="https://code.jquery.com/jquery-3.3.1.js"></script>
</head>
<body>

<p><button type="button" id="test">Test</button></p>
<div id="log"></div>

<script>
var me = {
type: "zombie",
test: function( event ) {
// Without proxy, `this` would refer to the event target
// use event.target to reference that element.
var element = event.target;
$( element ).css( "background-color", "red" );

// With proxy, `this` refers to the me object encapsulating
// this function.
$( "#log" ).append( "Hello " + this.type + "<br>" );
$( "#test" ).off( "click", this.test );
}
};

var you = {
type: "person",
test: function( event ) {
$( "#log" ).append( this.type + " " );
}
};

// Execute you.test() in the context of the `you` object
// no matter where it is called
// i.e. the `this` keyword will refer to `you`
var youClick = $.proxy( you.test, you );

// attach click handlers to #test
$( "#test" )
// this === "zombie"; handler unbound after first click
.on( "click", $.proxy( me.test, me ) )

// this === "person"
.on( "click", youClick )

// this === "zombie"
.on( "click", $.proxy( you.test, me ) )

// this === "<button> element"
.on( "click", you.test );
</script>

</body>
</html>

example

````Change the context of a function bound to the click handler,

<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery.proxy demo</title>
<script src="https://code.jquery.com/jquery-3.3.1.js"></script>
</head>
<body>

<p><button type="button" id="test">Test</button></p>
<div id="log"></div>

<script>
var me = {
// I'm a dog
type: "dog",

// Note that event comes *after* one and two
test: function( one, two, event ) {
$( "#log" )

// `one` maps to `you`, the 1st additional
// argument in the $.proxy function call
.append( "<h3>Hello " + one.type + ":</h3>" )

// The `this` keyword refers to `me`
// (the 2nd, context, argument of $.proxy)
.append( "I am a " + this.type + ", " )

// `two` maps to `they`, the 2nd additional
// argument in the $.proxy function call
.append( "and they are " + two.type + ".<br>" )

// The event type is "click"
.append( "Thanks for " + event.type + "ing." )

// The clicked element is `event.target`,
// and its type is "button"
.append( "the " + event.target.type + "." );
}
};

var you = { type: "cat" };
var they = { type: "fish" };

// Set up handler to execute me.test() in the context
// of `me`, with `you` and `they` as additional arguments
var proxy = $.proxy( me.test, me, you, they );

$( "#test" )
.on( "click", proxy );
</script>

</body>
</html>

Type parameters

TContext
TReturn
A
B
C
D
E
F
T
U

Parameters

funсtion: function

The function whose context will be changed.
- - (this: TContext, a: A, b: B, c: C, d: D, e: E, f: F, t: T, u: U): TReturn
  - Parameters
    - this: TContext
    - a: A
    - b: B
    - c: C
    - d: D
    - e: E
    - f: F
    - t: T
    - u: U
    Returns TReturn
context: TContext

The object to which the context (this) of the function should be set.
a: A

An argument to be passed to the function referenced in the function argument.
b: B

An argument to be passed to the function referenced in the function argument.
c: C

An argument to be passed to the function referenced in the function argument.
d: D

An argument to be passed to the function referenced in the function argument.
e: E

An argument to be passed to the function referenced in the function argument.
f: F

An argument to be passed to the function referenced in the function argument.

Returns function

- (t: T, u: U): TReturn
- Parameters
  - t: T
  - u: U
  Returns TReturn

Takes a function and returns a new one that will always have a particular context.

see

since

1.4

since

1.6

deprecated

Deprecated since 3.3. Use `{@link Function#bind }`.

example

````Change the context of functions bound to a click handler using the "function, context" signature. Unbind the first handler after first click.

<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery.proxy demo</title>
<script src="https://code.jquery.com/jquery-3.3.1.js"></script>
</head>
<body>

<p><button type="button" id="test">Test</button></p>
<div id="log"></div>

<script>
var me = {
type: "zombie",
test: function( event ) {
// Without proxy, `this` would refer to the event target
// use event.target to reference that element.
var element = event.target;
$( element ).css( "background-color", "red" );

// With proxy, `this` refers to the me object encapsulating
// this function.
$( "#log" ).append( "Hello " + this.type + "<br>" );
$( "#test" ).off( "click", this.test );
}
};

var you = {
type: "person",
test: function( event ) {
$( "#log" ).append( this.type + " " );
}
};

// Execute you.test() in the context of the `you` object
// no matter where it is called
// i.e. the `this` keyword will refer to `you`
var youClick = $.proxy( you.test, you );

// attach click handlers to #test
$( "#test" )
// this === "zombie"; handler unbound after first click
.on( "click", $.proxy( me.test, me ) )

// this === "person"
.on( "click", youClick )

// this === "zombie"
.on( "click", $.proxy( you.test, me ) )

// this === "<button> element"
.on( "click", you.test );
</script>

</body>
</html>

example

````Change the context of a function bound to the click handler,

<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery.proxy demo</title>
<script src="https://code.jquery.com/jquery-3.3.1.js"></script>
</head>
<body>

<p><button type="button" id="test">Test</button></p>
<div id="log"></div>

<script>
var me = {
// I'm a dog
type: "dog",

// Note that event comes *after* one and two
test: function( one, two, event ) {
$( "#log" )

// `one` maps to `you`, the 1st additional
// argument in the $.proxy function call
.append( "<h3>Hello " + one.type + ":</h3>" )

// The `this` keyword refers to `me`
// (the 2nd, context, argument of $.proxy)
.append( "I am a " + this.type + ", " )

// `two` maps to `they`, the 2nd additional
// argument in the $.proxy function call
.append( "and they are " + two.type + ".<br>" )

// The event type is "click"
.append( "Thanks for " + event.type + "ing." )

// The clicked element is `event.target`,
// and its type is "button"
.append( "the " + event.target.type + "." );
}
};

var you = { type: "cat" };
var they = { type: "fish" };

// Set up handler to execute me.test() in the context
// of `me`, with `you` and `they` as additional arguments
var proxy = $.proxy( me.test, me, you, they );

$( "#test" )
.on( "click", proxy );
</script>

</body>
</html>

Type parameters

TContext
TReturn
A
B
C
D
E
T
U

Parameters

funсtion: function

The function whose context will be changed.
- - (this: TContext, a: A, b: B, c: C, d: D, e: E, t: T, u: U): TReturn
  - Parameters
    - this: TContext
    - a: A
    - b: B
    - c: C
    - d: D
    - e: E
    - t: T
    - u: U
    Returns TReturn
context: TContext

The object to which the context (this) of the function should be set.
a: A

An argument to be passed to the function referenced in the function argument.
b: B

An argument to be passed to the function referenced in the function argument.
c: C

An argument to be passed to the function referenced in the function argument.
d: D

An argument to be passed to the function referenced in the function argument.
e: E

An argument to be passed to the function referenced in the function argument.

Returns function

- (t: T, u: U): TReturn
- Parameters
  - t: T
  - u: U
  Returns TReturn

Takes a function and returns a new one that will always have a particular context.

see

since

1.4

since

1.6

deprecated

Deprecated since 3.3. Use `{@link Function#bind }`.

example

````Change the context of functions bound to a click handler using the "function, context" signature. Unbind the first handler after first click.

<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery.proxy demo</title>
<script src="https://code.jquery.com/jquery-3.3.1.js"></script>
</head>
<body>

<p><button type="button" id="test">Test</button></p>
<div id="log"></div>

<script>
var me = {
type: "zombie",
test: function( event ) {
// Without proxy, `this` would refer to the event target
// use event.target to reference that element.
var element = event.target;
$( element ).css( "background-color", "red" );

// With proxy, `this` refers to the me object encapsulating
// this function.
$( "#log" ).append( "Hello " + this.type + "<br>" );
$( "#test" ).off( "click", this.test );
}
};

var you = {
type: "person",
test: function( event ) {
$( "#log" ).append( this.type + " " );
}
};

// Execute you.test() in the context of the `you` object
// no matter where it is called
// i.e. the `this` keyword will refer to `you`
var youClick = $.proxy( you.test, you );

// attach click handlers to #test
$( "#test" )
// this === "zombie"; handler unbound after first click
.on( "click", $.proxy( me.test, me ) )

// this === "person"
.on( "click", youClick )

// this === "zombie"
.on( "click", $.proxy( you.test, me ) )

// this === "<button> element"
.on( "click", you.test );
</script>

</body>
</html>

example

````Change the context of a function bound to the click handler,

<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery.proxy demo</title>
<script src="https://code.jquery.com/jquery-3.3.1.js"></script>
</head>
<body>

<p><button type="button" id="test">Test</button></p>
<div id="log"></div>

<script>
var me = {
// I'm a dog
type: "dog",

// Note that event comes *after* one and two
test: function( one, two, event ) {
$( "#log" )

// `one` maps to `you`, the 1st additional
// argument in the $.proxy function call
.append( "<h3>Hello " + one.type + ":</h3>" )

// The `this` keyword refers to `me`
// (the 2nd, context, argument of $.proxy)
.append( "I am a " + this.type + ", " )

// `two` maps to `they`, the 2nd additional
// argument in the $.proxy function call
.append( "and they are " + two.type + ".<br>" )

// The event type is "click"
.append( "Thanks for " + event.type + "ing." )

// The clicked element is `event.target`,
// and its type is "button"
.append( "the " + event.target.type + "." );
}
};

var you = { type: "cat" };
var they = { type: "fish" };

// Set up handler to execute me.test() in the context
// of `me`, with `you` and `they` as additional arguments
var proxy = $.proxy( me.test, me, you, they );

$( "#test" )
.on( "click", proxy );
</script>

</body>
</html>

Type parameters

TContext
TReturn
A
B
C
D
T
U

Parameters

funсtion: function

The function whose context will be changed.
- - (this: TContext, a: A, b: B, c: C, d: D, t: T, u: U): TReturn
  - Parameters
    - this: TContext
    - a: A
    - b: B
    - c: C
    - d: D
    - t: T
    - u: U
    Returns TReturn
context: TContext

The object to which the context (this) of the function should be set.
a: A

An argument to be passed to the function referenced in the function argument.
b: B

An argument to be passed to the function referenced in the function argument.
c: C

An argument to be passed to the function referenced in the function argument.
d: D

An argument to be passed to the function referenced in the function argument.

Returns function

- (t: T, u: U): TReturn
- Parameters
  - t: T
  - u: U
  Returns TReturn

Takes a function and returns a new one that will always have a particular context.

see

since

1.4

since

1.6

deprecated

Deprecated since 3.3. Use `{@link Function#bind }`.

example

````Change the context of functions bound to a click handler using the "function, context" signature. Unbind the first handler after first click.

<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery.proxy demo</title>
<script src="https://code.jquery.com/jquery-3.3.1.js"></script>
</head>
<body>

<p><button type="button" id="test">Test</button></p>
<div id="log"></div>

<script>
var me = {
type: "zombie",
test: function( event ) {
// Without proxy, `this` would refer to the event target
// use event.target to reference that element.
var element = event.target;
$( element ).css( "background-color", "red" );

// With proxy, `this` refers to the me object encapsulating
// this function.
$( "#log" ).append( "Hello " + this.type + "<br>" );
$( "#test" ).off( "click", this.test );
}
};

var you = {
type: "person",
test: function( event ) {
$( "#log" ).append( this.type + " " );
}
};

// Execute you.test() in the context of the `you` object
// no matter where it is called
// i.e. the `this` keyword will refer to `you`
var youClick = $.proxy( you.test, you );

// attach click handlers to #test
$( "#test" )
// this === "zombie"; handler unbound after first click
.on( "click", $.proxy( me.test, me ) )

// this === "person"
.on( "click", youClick )

// this === "zombie"
.on( "click", $.proxy( you.test, me ) )

// this === "<button> element"
.on( "click", you.test );
</script>

</body>
</html>

example

````Change the context of a function bound to the click handler,

<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery.proxy demo</title>
<script src="https://code.jquery.com/jquery-3.3.1.js"></script>
</head>
<body>

<p><button type="button" id="test">Test</button></p>
<div id="log"></div>

<script>
var me = {
// I'm a dog
type: "dog",

// Note that event comes *after* one and two
test: function( one, two, event ) {
$( "#log" )

// `one` maps to `you`, the 1st additional
// argument in the $.proxy function call
.append( "<h3>Hello " + one.type + ":</h3>" )

// The `this` keyword refers to `me`
// (the 2nd, context, argument of $.proxy)
.append( "I am a " + this.type + ", " )

// `two` maps to `they`, the 2nd additional
// argument in the $.proxy function call
.append( "and they are " + two.type + ".<br>" )

// The event type is "click"
.append( "Thanks for " + event.type + "ing." )

// The clicked element is `event.target`,
// and its type is "button"
.append( "the " + event.target.type + "." );
}
};

var you = { type: "cat" };
var they = { type: "fish" };

// Set up handler to execute me.test() in the context
// of `me`, with `you` and `they` as additional arguments
var proxy = $.proxy( me.test, me, you, they );

$( "#test" )
.on( "click", proxy );
</script>

</body>
</html>

Type parameters

TContext
TReturn
A
B
C
T
U

Parameters

funсtion: function

The function whose context will be changed.
- - (this: TContext, a: A, b: B, c: C, t: T, u: U): TReturn
  - Parameters
    - this: TContext
    - a: A
    - b: B
    - c: C
    - t: T
    - u: U
    Returns TReturn
context: TContext

The object to which the context (this) of the function should be set.
a: A

An argument to be passed to the function referenced in the function argument.
b: B

An argument to be passed to the function referenced in the function argument.
c: C

An argument to be passed to the function referenced in the function argument.

Returns function

- (t: T, u: U): TReturn
- Parameters
  - t: T
  - u: U
  Returns TReturn

Takes a function and returns a new one that will always have a particular context.

see

since

1.4

since

1.6

deprecated

Deprecated since 3.3. Use `{@link Function#bind }`.

example

````Change the context of functions bound to a click handler using the "function, context" signature. Unbind the first handler after first click.

<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery.proxy demo</title>
<script src="https://code.jquery.com/jquery-3.3.1.js"></script>
</head>
<body>

<p><button type="button" id="test">Test</button></p>
<div id="log"></div>

<script>
var me = {
type: "zombie",
test: function( event ) {
// Without proxy, `this` would refer to the event target
// use event.target to reference that element.
var element = event.target;
$( element ).css( "background-color", "red" );

// With proxy, `this` refers to the me object encapsulating
// this function.
$( "#log" ).append( "Hello " + this.type + "<br>" );
$( "#test" ).off( "click", this.test );
}
};

var you = {
type: "person",
test: function( event ) {
$( "#log" ).append( this.type + " " );
}
};

// Execute you.test() in the context of the `you` object
// no matter where it is called
// i.e. the `this` keyword will refer to `you`
var youClick = $.proxy( you.test, you );

// attach click handlers to #test
$( "#test" )
// this === "zombie"; handler unbound after first click
.on( "click", $.proxy( me.test, me ) )

// this === "person"
.on( "click", youClick )

// this === "zombie"
.on( "click", $.proxy( you.test, me ) )

// this === "<button> element"
.on( "click", you.test );
</script>

</body>
</html>

example

````Change the context of a function bound to the click handler,

<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery.proxy demo</title>
<script src="https://code.jquery.com/jquery-3.3.1.js"></script>
</head>
<body>

<p><button type="button" id="test">Test</button></p>
<div id="log"></div>

<script>
var me = {
// I'm a dog
type: "dog",

// Note that event comes *after* one and two
test: function( one, two, event ) {
$( "#log" )

// `one` maps to `you`, the 1st additional
// argument in the $.proxy function call
.append( "<h3>Hello " + one.type + ":</h3>" )

// The `this` keyword refers to `me`
// (the 2nd, context, argument of $.proxy)
.append( "I am a " + this.type + ", " )

// `two` maps to `they`, the 2nd additional
// argument in the $.proxy function call
.append( "and they are " + two.type + ".<br>" )

// The event type is "click"
.append( "Thanks for " + event.type + "ing." )

// The clicked element is `event.target`,
// and its type is "button"
.append( "the " + event.target.type + "." );
}
};

var you = { type: "cat" };
var they = { type: "fish" };

// Set up handler to execute me.test() in the context
// of `me`, with `you` and `they` as additional arguments
var proxy = $.proxy( me.test, me, you, they );

$( "#test" )
.on( "click", proxy );
</script>

</body>
</html>

Type parameters

TContext
TReturn
A
B
T
U

Parameters

funсtion: function

The function whose context will be changed.
- - (this: TContext, a: A, b: B, t: T, u: U): TReturn
  - Parameters
    - this: TContext
    - a: A
    - b: B
    - t: T
    - u: U
    Returns TReturn
context: TContext

The object to which the context (this) of the function should be set.
a: A

An argument to be passed to the function referenced in the function argument.
b: B

An argument to be passed to the function referenced in the function argument.

Returns function

- (t: T, u: U): TReturn
- Parameters
  - t: T
  - u: U
  Returns TReturn

Takes a function and returns a new one that will always have a particular context.

see

since

1.4

since

1.6

deprecated

Deprecated since 3.3. Use `{@link Function#bind }`.

example

````Change the context of functions bound to a click handler using the "function, context" signature. Unbind the first handler after first click.

<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery.proxy demo</title>
<script src="https://code.jquery.com/jquery-3.3.1.js"></script>
</head>
<body>

<p><button type="button" id="test">Test</button></p>
<div id="log"></div>

<script>
var me = {
type: "zombie",
test: function( event ) {
// Without proxy, `this` would refer to the event target
// use event.target to reference that element.
var element = event.target;
$( element ).css( "background-color", "red" );

// With proxy, `this` refers to the me object encapsulating
// this function.
$( "#log" ).append( "Hello " + this.type + "<br>" );
$( "#test" ).off( "click", this.test );
}
};

var you = {
type: "person",
test: function( event ) {
$( "#log" ).append( this.type + " " );
}
};

// Execute you.test() in the context of the `you` object
// no matter where it is called
// i.e. the `this` keyword will refer to `you`
var youClick = $.proxy( you.test, you );

// attach click handlers to #test
$( "#test" )
// this === "zombie"; handler unbound after first click
.on( "click", $.proxy( me.test, me ) )

// this === "person"
.on( "click", youClick )

// this === "zombie"
.on( "click", $.proxy( you.test, me ) )

// this === "<button> element"
.on( "click", you.test );
</script>

</body>
</html>

example

````Change the context of a function bound to the click handler,

<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery.proxy demo</title>
<script src="https://code.jquery.com/jquery-3.3.1.js"></script>
</head>
<body>

<p><button type="button" id="test">Test</button></p>
<div id="log"></div>

<script>
var me = {
// I'm a dog
type: "dog",

// Note that event comes *after* one and two
test: function( one, two, event ) {
$( "#log" )

// `one` maps to `you`, the 1st additional
// argument in the $.proxy function call
.append( "<h3>Hello " + one.type + ":</h3>" )

// The `this` keyword refers to `me`
// (the 2nd, context, argument of $.proxy)
.append( "I am a " + this.type + ", " )

// `two` maps to `they`, the 2nd additional
// argument in the $.proxy function call
.append( "and they are " + two.type + ".<br>" )

// The event type is "click"
.append( "Thanks for " + event.type + "ing." )

// The clicked element is `event.target`,
// and its type is "button"
.append( "the " + event.target.type + "." );
}
};

var you = { type: "cat" };
var they = { type: "fish" };

// Set up handler to execute me.test() in the context
// of `me`, with `you` and `they` as additional arguments
var proxy = $.proxy( me.test, me, you, they );

$( "#test" )
.on( "click", proxy );
</script>

</body>
</html>

Type parameters

TContext
TReturn
A
T
U

Parameters

funсtion: function

The function whose context will be changed.
- - (this: TContext, a: A, t: T, u: U): TReturn
  - Parameters
    - this: TContext
    - a: A
    - t: T
    - u: U
    Returns TReturn
context: TContext

The object to which the context (this) of the function should be set.
a: A

An argument to be passed to the function referenced in the function argument.

Returns function

- (t: T, u: U): TReturn
- Parameters
  - t: T
  - u: U
  Returns TReturn

Takes a function and returns a new one that will always have a particular context.

see

since

1.4

since

1.6

deprecated

Deprecated since 3.3. Use `{@link Function#bind }`.

example

````Change the context of functions bound to a click handler using the "function, context" signature. Unbind the first handler after first click.

<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery.proxy demo</title>
<script src="https://code.jquery.com/jquery-3.3.1.js"></script>
</head>
<body>

<p><button type="button" id="test">Test</button></p>
<div id="log"></div>

<script>
var me = {
type: "zombie",
test: function( event ) {
// Without proxy, `this` would refer to the event target
// use event.target to reference that element.
var element = event.target;
$( element ).css( "background-color", "red" );

// With proxy, `this` refers to the me object encapsulating
// this function.
$( "#log" ).append( "Hello " + this.type + "<br>" );
$( "#test" ).off( "click", this.test );
}
};

var you = {
type: "person",
test: function( event ) {
$( "#log" ).append( this.type + " " );
}
};

// Execute you.test() in the context of the `you` object
// no matter where it is called
// i.e. the `this` keyword will refer to `you`
var youClick = $.proxy( you.test, you );

// attach click handlers to #test
$( "#test" )
// this === "zombie"; handler unbound after first click
.on( "click", $.proxy( me.test, me ) )

// this === "person"
.on( "click", youClick )

// this === "zombie"
.on( "click", $.proxy( you.test, me ) )

// this === "<button> element"
.on( "click", you.test );
</script>

</body>
</html>

example

````Change the context of a function bound to the click handler,

<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery.proxy demo</title>
<script src="https://code.jquery.com/jquery-3.3.1.js"></script>
</head>
<body>

<p><button type="button" id="test">Test</button></p>
<div id="log"></div>

<script>
var me = {
// I'm a dog
type: "dog",

// Note that event comes *after* one and two
test: function( one, two, event ) {
$( "#log" )

// `one` maps to `you`, the 1st additional
// argument in the $.proxy function call
.append( "<h3>Hello " + one.type + ":</h3>" )

// The `this` keyword refers to `me`
// (the 2nd, context, argument of $.proxy)
.append( "I am a " + this.type + ", " )

// `two` maps to `they`, the 2nd additional
// argument in the $.proxy function call
.append( "and they are " + two.type + ".<br>" )

// The event type is "click"
.append( "Thanks for " + event.type + "ing." )

// The clicked element is `event.target`,
// and its type is "button"
.append( "the " + event.target.type + "." );
}
};

var you = { type: "cat" };
var they = { type: "fish" };

// Set up handler to execute me.test() in the context
// of `me`, with `you` and `they` as additional arguments
var proxy = $.proxy( me.test, me, you, they );

$( "#test" )
.on( "click", proxy );
</script>

</body>
</html>

Type parameters

TContext
TReturn
T
U

Parameters

funсtion: function

The function whose context will be changed.
- - (this: TContext, t: T, u: U): TReturn
  - Parameters
    - this: TContext
    - t: T
    - u: U
    Returns TReturn
context: TContext

The object to which the context (this) of the function should be set.

Returns function

- (t: T, u: U): TReturn
- Parameters
  - t: T
  - u: U
  Returns TReturn

Takes a function and returns a new one that will always have a particular context.

see

since

1.4

since

1.6

deprecated

Deprecated since 3.3. Use `{@link Function#bind }`.

example

````Change the context of functions bound to a click handler using the "function, context" signature. Unbind the first handler after first click.

<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery.proxy demo</title>
<script src="https://code.jquery.com/jquery-3.3.1.js"></script>
</head>
<body>

<p><button type="button" id="test">Test</button></p>
<div id="log"></div>

<script>
var me = {
type: "zombie",
test: function( event ) {
// Without proxy, `this` would refer to the event target
// use event.target to reference that element.
var element = event.target;
$( element ).css( "background-color", "red" );

// With proxy, `this` refers to the me object encapsulating
// this function.
$( "#log" ).append( "Hello " + this.type + "<br>" );
$( "#test" ).off( "click", this.test );
}
};

var you = {
type: "person",
test: function( event ) {
$( "#log" ).append( this.type + " " );
}
};

// Execute you.test() in the context of the `you` object
// no matter where it is called
// i.e. the `this` keyword will refer to `you`
var youClick = $.proxy( you.test, you );

// attach click handlers to #test
$( "#test" )
// this === "zombie"; handler unbound after first click
.on( "click", $.proxy( me.test, me ) )

// this === "person"
.on( "click", youClick )

// this === "zombie"
.on( "click", $.proxy( you.test, me ) )

// this === "<button> element"
.on( "click", you.test );
</script>

</body>
</html>

example

````Change the context of a function bound to the click handler,

<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery.proxy demo</title>
<script src="https://code.jquery.com/jquery-3.3.1.js"></script>
</head>
<body>

<p><button type="button" id="test">Test</button></p>
<div id="log"></div>

<script>
var me = {
// I'm a dog
type: "dog",

// Note that event comes *after* one and two
test: function( one, two, event ) {
$( "#log" )

// `one` maps to `you`, the 1st additional
// argument in the $.proxy function call
.append( "<h3>Hello " + one.type + ":</h3>" )

// The `this` keyword refers to `me`
// (the 2nd, context, argument of $.proxy)
.append( "I am a " + this.type + ", " )

// `two` maps to `they`, the 2nd additional
// argument in the $.proxy function call
.append( "and they are " + two.type + ".<br>" )

// The event type is "click"
.append( "Thanks for " + event.type + "ing." )

// The clicked element is `event.target`,
// and its type is "button"
.append( "the " + event.target.type + "." );
}
};

var you = { type: "cat" };
var they = { type: "fish" };

// Set up handler to execute me.test() in the context
// of `me`, with `you` and `they` as additional arguments
var proxy = $.proxy( me.test, me, you, they );

$( "#test" )
.on( "click", proxy );
</script>

</body>
</html>

Type parameters

TContext
TReturn
A
B
C
D
E
F
G
T
U
V

Parameters

funсtion: function

The function whose context will be changed.
- - (this: TContext, a: A, b: B, c: C, d: D, e: E, f: F, g: G, t: T, u: U, v: V): TReturn
  - Parameters
    - this: TContext
    - a: A
    - b: B
    - c: C
    - d: D
    - e: E
    - f: F
    - g: G
    - t: T
    - u: U
    - v: V
    Returns TReturn
context: TContext

The object to which the context (this) of the function should be set.
a: A

An argument to be passed to the function referenced in the function argument.
b: B

An argument to be passed to the function referenced in the function argument.
c: C

An argument to be passed to the function referenced in the function argument.
d: D

An argument to be passed to the function referenced in the function argument.
e: E

An argument to be passed to the function referenced in the function argument.
f: F

An argument to be passed to the function referenced in the function argument.
g: G

An argument to be passed to the function referenced in the function argument.

Returns function

- (t: T, u: U, v: V): TReturn
- Parameters
  - t: T
  - u: U
  - v: V
  Returns TReturn

Takes a function and returns a new one that will always have a particular context.

see

since

1.4

since

1.6

deprecated

Deprecated since 3.3. Use `{@link Function#bind }`.

example

````Change the context of functions bound to a click handler using the "function, context" signature. Unbind the first handler after first click.

<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery.proxy demo</title>
<script src="https://code.jquery.com/jquery-3.3.1.js"></script>
</head>
<body>

<p><button type="button" id="test">Test</button></p>
<div id="log"></div>

<script>
var me = {
type: "zombie",
test: function( event ) {
// Without proxy, `this` would refer to the event target
// use event.target to reference that element.
var element = event.target;
$( element ).css( "background-color", "red" );

// With proxy, `this` refers to the me object encapsulating
// this function.
$( "#log" ).append( "Hello " + this.type + "<br>" );
$( "#test" ).off( "click", this.test );
}
};

var you = {
type: "person",
test: function( event ) {
$( "#log" ).append( this.type + " " );
}
};

// Execute you.test() in the context of the `you` object
// no matter where it is called
// i.e. the `this` keyword will refer to `you`
var youClick = $.proxy( you.test, you );

// attach click handlers to #test
$( "#test" )
// this === "zombie"; handler unbound after first click
.on( "click", $.proxy( me.test, me ) )

// this === "person"
.on( "click", youClick )

// this === "zombie"
.on( "click", $.proxy( you.test, me ) )

// this === "<button> element"
.on( "click", you.test );
</script>

</body>
</html>

example

````Change the context of a function bound to the click handler,

<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery.proxy demo</title>
<script src="https://code.jquery.com/jquery-3.3.1.js"></script>
</head>
<body>

<p><button type="button" id="test">Test</button></p>
<div id="log"></div>

<script>
var me = {
// I'm a dog
type: "dog",

// Note that event comes *after* one and two
test: function( one, two, event ) {
$( "#log" )

// `one` maps to `you`, the 1st additional
// argument in the $.proxy function call
.append( "<h3>Hello " + one.type + ":</h3>" )

// The `this` keyword refers to `me`
// (the 2nd, context, argument of $.proxy)
.append( "I am a " + this.type + ", " )

// `two` maps to `they`, the 2nd additional
// argument in the $.proxy function call
.append( "and they are " + two.type + ".<br>" )

// The event type is "click"
.append( "Thanks for " + event.type + "ing." )

// The clicked element is `event.target`,
// and its type is "button"
.append( "the " + event.target.type + "." );
}
};

var you = { type: "cat" };
var they = { type: "fish" };

// Set up handler to execute me.test() in the context
// of `me`, with `you` and `they` as additional arguments
var proxy = $.proxy( me.test, me, you, they );

$( "#test" )
.on( "click", proxy );
</script>

</body>
</html>

Type parameters

TContext
TReturn
A
B
C
D
E
F
T
U
V

Parameters

funсtion: function

The function whose context will be changed.
- - (this: TContext, a: A, b: B, c: C, d: D, e: E, f: F, t: T, u: U, v: V): TReturn
  - Parameters
    - this: TContext
    - a: A
    - b: B
    - c: C
    - d: D
    - e: E
    - f: F
    - t: T
    - u: U
    - v: V
    Returns TReturn
context: TContext

The object to which the context (this) of the function should be set.
a: A

An argument to be passed to the function referenced in the function argument.
b: B

An argument to be passed to the function referenced in the function argument.
c: C

An argument to be passed to the function referenced in the function argument.
d: D

An argument to be passed to the function referenced in the function argument.
e: E

An argument to be passed to the function referenced in the function argument.
f: F

An argument to be passed to the function referenced in the function argument.

Returns function

- (t: T, u: U, v: V): TReturn
- Parameters
  - t: T
  - u: U
  - v: V
  Returns TReturn

Takes a function and returns a new one that will always have a particular context.

see

since

1.4

since

1.6

deprecated

Deprecated since 3.3. Use `{@link Function#bind }`.

example

````Change the context of functions bound to a click handler using the "function, context" signature. Unbind the first handler after first click.

<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery.proxy demo</title>
<script src="https://code.jquery.com/jquery-3.3.1.js"></script>
</head>
<body>

<p><button type="button" id="test">Test</button></p>
<div id="log"></div>

<script>
var me = {
type: "zombie",
test: function( event ) {
// Without proxy, `this` would refer to the event target
// use event.target to reference that element.
var element = event.target;
$( element ).css( "background-color", "red" );

// With proxy, `this` refers to the me object encapsulating
// this function.
$( "#log" ).append( "Hello " + this.type + "<br>" );
$( "#test" ).off( "click", this.test );
}
};

var you = {
type: "person",
test: function( event ) {
$( "#log" ).append( this.type + " " );
}
};

// Execute you.test() in the context of the `you` object
// no matter where it is called
// i.e. the `this` keyword will refer to `you`
var youClick = $.proxy( you.test, you );

// attach click handlers to #test
$( "#test" )
// this === "zombie"; handler unbound after first click
.on( "click", $.proxy( me.test, me ) )

// this === "person"
.on( "click", youClick )

// this === "zombie"
.on( "click", $.proxy( you.test, me ) )

// this === "<button> element"
.on( "click", you.test );
</script>

</body>
</html>

example

````Change the context of a function bound to the click handler,

<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery.proxy demo</title>
<script src="https://code.jquery.com/jquery-3.3.1.js"></script>
</head>
<body>

<p><button type="button" id="test">Test</button></p>
<div id="log"></div>

<script>
var me = {
// I'm a dog
type: "dog",

// Note that event comes *after* one and two
test: function( one, two, event ) {
$( "#log" )

// `one` maps to `you`, the 1st additional
// argument in the $.proxy function call
.append( "<h3>Hello " + one.type + ":</h3>" )

// The `this` keyword refers to `me`
// (the 2nd, context, argument of $.proxy)
.append( "I am a " + this.type + ", " )

// `two` maps to `they`, the 2nd additional
// argument in the $.proxy function call
.append( "and they are " + two.type + ".<br>" )

// The event type is "click"
.append( "Thanks for " + event.type + "ing." )

// The clicked element is `event.target`,
// and its type is "button"
.append( "the " + event.target.type + "." );
}
};

var you = { type: "cat" };
var they = { type: "fish" };

// Set up handler to execute me.test() in the context
// of `me`, with `you` and `they` as additional arguments
var proxy = $.proxy( me.test, me, you, they );

$( "#test" )
.on( "click", proxy );
</script>

</body>
</html>

Type parameters

TContext
TReturn
A
B
C
D
E
T
U
V

Parameters

funсtion: function

The function whose context will be changed.
- - (this: TContext, a: A, b: B, c: C, d: D, e: E, t: T, u: U, v: V): TReturn
  - Parameters
    - this: TContext
    - a: A
    - b: B
    - c: C
    - d: D
    - e: E
    - t: T
    - u: U
    - v: V
    Returns TReturn
context: TContext

The object to which the context (this) of the function should be set.
a: A

An argument to be passed to the function referenced in the function argument.
b: B

An argument to be passed to the function referenced in the function argument.
c: C

An argument to be passed to the function referenced in the function argument.
d: D

An argument to be passed to the function referenced in the function argument.
e: E

An argument to be passed to the function referenced in the function argument.

Returns function

- (t: T, u: U, v: V): TReturn
- Parameters
  - t: T
  - u: U
  - v: V
  Returns TReturn

Takes a function and returns a new one that will always have a particular context.

see

since

1.4

since

1.6

deprecated

Deprecated since 3.3. Use `{@link Function#bind }`.

example

````Change the context of functions bound to a click handler using the "function, context" signature. Unbind the first handler after first click.

<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery.proxy demo</title>
<script src="https://code.jquery.com/jquery-3.3.1.js"></script>
</head>
<body>

<p><button type="button" id="test">Test</button></p>
<div id="log"></div>

<script>
var me = {
type: "zombie",
test: function( event ) {
// Without proxy, `this` would refer to the event target
// use event.target to reference that element.
var element = event.target;
$( element ).css( "background-color", "red" );

// With proxy, `this` refers to the me object encapsulating
// this function.
$( "#log" ).append( "Hello " + this.type + "<br>" );
$( "#test" ).off( "click", this.test );
}
};

var you = {
type: "person",
test: function( event ) {
$( "#log" ).append( this.type + " " );
}
};

// Execute you.test() in the context of the `you` object
// no matter where it is called
// i.e. the `this` keyword will refer to `you`
var youClick = $.proxy( you.test, you );

// attach click handlers to #test
$( "#test" )
// this === "zombie"; handler unbound after first click
.on( "click", $.proxy( me.test, me ) )

// this === "person"
.on( "click", youClick )

// this === "zombie"
.on( "click", $.proxy( you.test, me ) )

// this === "<button> element"
.on( "click", you.test );
</script>

</body>
</html>

example

````Change the context of a function bound to the click handler,

<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery.proxy demo</title>
<script src="https://code.jquery.com/jquery-3.3.1.js"></script>
</head>
<body>

<p><button type="button" id="test">Test</button></p>
<div id="log"></div>

<script>
var me = {
// I'm a dog
type: "dog",

// Note that event comes *after* one and two
test: function( one, two, event ) {
$( "#log" )

// `one` maps to `you`, the 1st additional
// argument in the $.proxy function call
.append( "<h3>Hello " + one.type + ":</h3>" )

// The `this` keyword refers to `me`
// (the 2nd, context, argument of $.proxy)
.append( "I am a " + this.type + ", " )

// `two` maps to `they`, the 2nd additional
// argument in the $.proxy function call
.append( "and they are " + two.type + ".<br>" )

// The event type is "click"
.append( "Thanks for " + event.type + "ing." )

// The clicked element is `event.target`,
// and its type is "button"
.append( "the " + event.target.type + "." );
}
};

var you = { type: "cat" };
var they = { type: "fish" };

// Set up handler to execute me.test() in the context
// of `me`, with `you` and `they` as additional arguments
var proxy = $.proxy( me.test, me, you, they );

$( "#test" )
.on( "click", proxy );
</script>

</body>
</html>

Type parameters

TContext
TReturn
A
B
C
D
T
U
V

Parameters

funсtion: function

The function whose context will be changed.
- - (this: TContext, a: A, b: B, c: C, d: D, t: T, u: U, v: V): TReturn
  - Parameters
    - this: TContext
    - a: A
    - b: B
    - c: C
    - d: D
    - t: T
    - u: U
    - v: V
    Returns TReturn
context: TContext

The object to which the context (this) of the function should be set.
a: A

An argument to be passed to the function referenced in the function argument.
b: B

An argument to be passed to the function referenced in the function argument.
c: C

An argument to be passed to the function referenced in the function argument.
d: D

An argument to be passed to the function referenced in the function argument.

Returns function

- (t: T, u: U, v: V): TReturn
- Parameters
  - t: T
  - u: U
  - v: V
  Returns TReturn

Takes a function and returns a new one that will always have a particular context.

see

since

1.4

since

1.6

deprecated

Deprecated since 3.3. Use `{@link Function#bind }`.

example

````Change the context of functions bound to a click handler using the "function, context" signature. Unbind the first handler after first click.

<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery.proxy demo</title>
<script src="https://code.jquery.com/jquery-3.3.1.js"></script>
</head>
<body>

<p><button type="button" id="test">Test</button></p>
<div id="log"></div>

<script>
var me = {
type: "zombie",
test: function( event ) {
// Without proxy, `this` would refer to the event target
// use event.target to reference that element.
var element = event.target;
$( element ).css( "background-color", "red" );

// With proxy, `this` refers to the me object encapsulating
// this function.
$( "#log" ).append( "Hello " + this.type + "<br>" );
$( "#test" ).off( "click", this.test );
}
};

var you = {
type: "person",
test: function( event ) {
$( "#log" ).append( this.type + " " );
}
};

// Execute you.test() in the context of the `you` object
// no matter where it is called
// i.e. the `this` keyword will refer to `you`
var youClick = $.proxy( you.test, you );

// attach click handlers to #test
$( "#test" )
// this === "zombie"; handler unbound after first click
.on( "click", $.proxy( me.test, me ) )

// this === "person"
.on( "click", youClick )

// this === "zombie"
.on( "click", $.proxy( you.test, me ) )

// this === "<button> element"
.on( "click", you.test );
</script>

</body>
</html>

example

````Change the context of a function bound to the click handler,

<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery.proxy demo</title>
<script src="https://code.jquery.com/jquery-3.3.1.js"></script>
</head>
<body>

<p><button type="button" id="test">Test</button></p>
<div id="log"></div>

<script>
var me = {
// I'm a dog
type: "dog",

// Note that event comes *after* one and two
test: function( one, two, event ) {
$( "#log" )

// `one` maps to `you`, the 1st additional
// argument in the $.proxy function call
.append( "<h3>Hello " + one.type + ":</h3>" )

// The `this` keyword refers to `me`
// (the 2nd, context, argument of $.proxy)
.append( "I am a " + this.type + ", " )

// `two` maps to `they`, the 2nd additional
// argument in the $.proxy function call
.append( "and they are " + two.type + ".<br>" )

// The event type is "click"
.append( "Thanks for " + event.type + "ing." )

// The clicked element is `event.target`,
// and its type is "button"
.append( "the " + event.target.type + "." );
}
};

var you = { type: "cat" };
var they = { type: "fish" };

// Set up handler to execute me.test() in the context
// of `me`, with `you` and `they` as additional arguments
var proxy = $.proxy( me.test, me, you, they );

$( "#test" )
.on( "click", proxy );
</script>

</body>
</html>

Type parameters

TContext
TReturn
A
B
C
T
U
V

Parameters

funсtion: function

The function whose context will be changed.
- - (this: TContext, a: A, b: B, c: C, t: T, u: U, v: V): TReturn
  - Parameters
    - this: TContext
    - a: A
    - b: B
    - c: C
    - t: T
    - u: U
    - v: V
    Returns TReturn
context: TContext

The object to which the context (this) of the function should be set.
a: A

An argument to be passed to the function referenced in the function argument.
b: B

An argument to be passed to the function referenced in the function argument.
c: C

An argument to be passed to the function referenced in the function argument.

Returns function

- (t: T, u: U, v: V): TReturn
- Parameters
  - t: T
  - u: U
  - v: V
  Returns TReturn

Takes a function and returns a new one that will always have a particular context.

see

since

1.4

since

1.6

deprecated

Deprecated since 3.3. Use `{@link Function#bind }`.

example

````Change the context of functions bound to a click handler using the "function, context" signature. Unbind the first handler after first click.

<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery.proxy demo</title>
<script src="https://code.jquery.com/jquery-3.3.1.js"></script>
</head>
<body>

<p><button type="button" id="test">Test</button></p>
<div id="log"></div>

<script>
var me = {
type: "zombie",
test: function( event ) {
// Without proxy, `this` would refer to the event target
// use event.target to reference that element.
var element = event.target;
$( element ).css( "background-color", "red" );

// With proxy, `this` refers to the me object encapsulating
// this function.
$( "#log" ).append( "Hello " + this.type + "<br>" );
$( "#test" ).off( "click", this.test );
}
};

var you = {
type: "person",
test: function( event ) {
$( "#log" ).append( this.type + " " );
}
};

// Execute you.test() in the context of the `you` object
// no matter where it is called
// i.e. the `this` keyword will refer to `you`
var youClick = $.proxy( you.test, you );

// attach click handlers to #test
$( "#test" )
// this === "zombie"; handler unbound after first click
.on( "click", $.proxy( me.test, me ) )

// this === "person"
.on( "click", youClick )

// this === "zombie"
.on( "click", $.proxy( you.test, me ) )

// this === "<button> element"
.on( "click", you.test );
</script>

</body>
</html>

example

````Change the context of a function bound to the click handler,

<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery.proxy demo</title>
<script src="https://code.jquery.com/jquery-3.3.1.js"></script>
</head>
<body>

<p><button type="button" id="test">Test</button></p>
<div id="log"></div>

<script>
var me = {
// I'm a dog
type: "dog",

// Note that event comes *after* one and two
test: function( one, two, event ) {
$( "#log" )

// `one` maps to `you`, the 1st additional
// argument in the $.proxy function call
.append( "<h3>Hello " + one.type + ":</h3>" )

// The `this` keyword refers to `me`
// (the 2nd, context, argument of $.proxy)
.append( "I am a " + this.type + ", " )

// `two` maps to `they`, the 2nd additional
// argument in the $.proxy function call
.append( "and they are " + two.type + ".<br>" )

// The event type is "click"
.append( "Thanks for " + event.type + "ing." )

// The clicked element is `event.target`,
// and its type is "button"
.append( "the " + event.target.type + "." );
}
};

var you = { type: "cat" };
var they = { type: "fish" };

// Set up handler to execute me.test() in the context
// of `me`, with `you` and `they` as additional arguments
var proxy = $.proxy( me.test, me, you, they );

$( "#test" )
.on( "click", proxy );
</script>

</body>
</html>

Type parameters

TContext
TReturn
A
B
T
U
V

Parameters

funсtion: function

The function whose context will be changed.
- - (this: TContext, a: A, b: B, t: T, u: U, v: V): TReturn
  - Parameters
    - this: TContext
    - a: A
    - b: B
    - t: T
    - u: U
    - v: V
    Returns TReturn
context: TContext

The object to which the context (this) of the function should be set.
a: A

An argument to be passed to the function referenced in the function argument.
b: B

An argument to be passed to the function referenced in the function argument.

Returns function

- (t: T, u: U, v: V): TReturn
- Parameters
  - t: T
  - u: U
  - v: V
  Returns TReturn

Takes a function and returns a new one that will always have a particular context.

see

since

1.4

since

1.6

deprecated

Deprecated since 3.3. Use `{@link Function#bind }`.

example

````Change the context of functions bound to a click handler using the "function, context" signature. Unbind the first handler after first click.

<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery.proxy demo</title>
<script src="https://code.jquery.com/jquery-3.3.1.js"></script>
</head>
<body>

<p><button type="button" id="test">Test</button></p>
<div id="log"></div>

<script>
var me = {
type: "zombie",
test: function( event ) {
// Without proxy, `this` would refer to the event target
// use event.target to reference that element.
var element = event.target;
$( element ).css( "background-color", "red" );

// With proxy, `this` refers to the me object encapsulating
// this function.
$( "#log" ).append( "Hello " + this.type + "<br>" );
$( "#test" ).off( "click", this.test );
}
};

var you = {
type: "person",
test: function( event ) {
$( "#log" ).append( this.type + " " );
}
};

// Execute you.test() in the context of the `you` object
// no matter where it is called
// i.e. the `this` keyword will refer to `you`
var youClick = $.proxy( you.test, you );

// attach click handlers to #test
$( "#test" )
// this === "zombie"; handler unbound after first click
.on( "click", $.proxy( me.test, me ) )

// this === "person"
.on( "click", youClick )

// this === "zombie"
.on( "click", $.proxy( you.test, me ) )

// this === "<button> element"
.on( "click", you.test );
</script>

</body>
</html>

example

````Change the context of a function bound to the click handler,

<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery.proxy demo</title>
<script src="https://code.jquery.com/jquery-3.3.1.js"></script>
</head>
<body>

<p><button type="button" id="test">Test</button></p>
<div id="log"></div>

<script>
var me = {
// I'm a dog
type: "dog",

// Note that event comes *after* one and two
test: function( one, two, event ) {
$( "#log" )

// `one` maps to `you`, the 1st additional
// argument in the $.proxy function call
.append( "<h3>Hello " + one.type + ":</h3>" )

// The `this` keyword refers to `me`
// (the 2nd, context, argument of $.proxy)
.append( "I am a " + this.type + ", " )

// `two` maps to `they`, the 2nd additional
// argument in the $.proxy function call
.append( "and they are " + two.type + ".<br>" )

// The event type is "click"
.append( "Thanks for " + event.type + "ing." )

// The clicked element is `event.target`,
// and its type is "button"
.append( "the " + event.target.type + "." );
}
};

var you = { type: "cat" };
var they = { type: "fish" };

// Set up handler to execute me.test() in the context
// of `me`, with `you` and `they` as additional arguments
var proxy = $.proxy( me.test, me, you, they );

$( "#test" )
.on( "click", proxy );
</script>

</body>
</html>

Type parameters

TContext
TReturn
A
T
U
V

Parameters

funсtion: function

The function whose context will be changed.
- - (this: TContext, a: A, t: T, u: U, v: V): TReturn
  - Parameters
    - this: TContext
    - a: A
    - t: T
    - u: U
    - v: V
    Returns TReturn
context: TContext

The object to which the context (this) of the function should be set.
a: A

An argument to be passed to the function referenced in the function argument.

Returns function

- (t: T, u: U, v: V): TReturn
- Parameters
  - t: T
  - u: U
  - v: V
  Returns TReturn

Takes a function and returns a new one that will always have a particular context.

see

since

1.4

since

1.6

deprecated

Deprecated since 3.3. Use `{@link Function#bind }`.

example

````Change the context of functions bound to a click handler using the "function, context" signature. Unbind the first handler after first click.

<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery.proxy demo</title>
<script src="https://code.jquery.com/jquery-3.3.1.js"></script>
</head>
<body>

<p><button type="button" id="test">Test</button></p>
<div id="log"></div>

<script>
var me = {
type: "zombie",
test: function( event ) {
// Without proxy, `this` would refer to the event target
// use event.target to reference that element.
var element = event.target;
$( element ).css( "background-color", "red" );

// With proxy, `this` refers to the me object encapsulating
// this function.
$( "#log" ).append( "Hello " + this.type + "<br>" );
$( "#test" ).off( "click", this.test );
}
};

var you = {
type: "person",
test: function( event ) {
$( "#log" ).append( this.type + " " );
}
};

// Execute you.test() in the context of the `you` object
// no matter where it is called
// i.e. the `this` keyword will refer to `you`
var youClick = $.proxy( you.test, you );

// attach click handlers to #test
$( "#test" )
// this === "zombie"; handler unbound after first click
.on( "click", $.proxy( me.test, me ) )

// this === "person"
.on( "click", youClick )

// this === "zombie"
.on( "click", $.proxy( you.test, me ) )

// this === "<button> element"
.on( "click", you.test );
</script>

</body>
</html>

example

````Change the context of a function bound to the click handler,

<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery.proxy demo</title>
<script src="https://code.jquery.com/jquery-3.3.1.js"></script>
</head>
<body>

<p><button type="button" id="test">Test</button></p>
<div id="log"></div>

<script>
var me = {
// I'm a dog
type: "dog",

// Note that event comes *after* one and two
test: function( one, two, event ) {
$( "#log" )

// `one` maps to `you`, the 1st additional
// argument in the $.proxy function call
.append( "<h3>Hello " + one.type + ":</h3>" )

// The `this` keyword refers to `me`
// (the 2nd, context, argument of $.proxy)
.append( "I am a " + this.type + ", " )

// `two` maps to `they`, the 2nd additional
// argument in the $.proxy function call
.append( "and they are " + two.type + ".<br>" )

// The event type is "click"
.append( "Thanks for " + event.type + "ing." )

// The clicked element is `event.target`,
// and its type is "button"
.append( "the " + event.target.type + "." );
}
};

var you = { type: "cat" };
var they = { type: "fish" };

// Set up handler to execute me.test() in the context
// of `me`, with `you` and `they` as additional arguments
var proxy = $.proxy( me.test, me, you, they );

$( "#test" )
.on( "click", proxy );
</script>

</body>
</html>

Type parameters

TContext
TReturn
T
U
V

Parameters

funсtion: function

The function whose context will be changed.
- - (this: TContext, t: T, u: U, v: V): TReturn
  - Parameters
    - this: TContext
    - t: T
    - u: U
    - v: V
    Returns TReturn
context: TContext

The object to which the context (this) of the function should be set.

Returns function

- (t: T, u: U, v: V): TReturn
- Parameters
  - t: T
  - u: U
  - v: V
  Returns TReturn

Takes a function and returns a new one that will always have a particular context.

see

since

1.4

since

1.6

deprecated

Deprecated since 3.3. Use `{@link Function#bind }`.

example

````Change the context of functions bound to a click handler using the "function, context" signature. Unbind the first handler after first click.

<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery.proxy demo</title>
<script src="https://code.jquery.com/jquery-3.3.1.js"></script>
</head>
<body>

<p><button type="button" id="test">Test</button></p>
<div id="log"></div>

<script>
var me = {
type: "zombie",
test: function( event ) {
// Without proxy, `this` would refer to the event target
// use event.target to reference that element.
var element = event.target;
$( element ).css( "background-color", "red" );

// With proxy, `this` refers to the me object encapsulating
// this function.
$( "#log" ).append( "Hello " + this.type + "<br>" );
$( "#test" ).off( "click", this.test );
}
};

var you = {
type: "person",
test: function( event ) {
$( "#log" ).append( this.type + " " );
}
};

// Execute you.test() in the context of the `you` object
// no matter where it is called
// i.e. the `this` keyword will refer to `you`
var youClick = $.proxy( you.test, you );

// attach click handlers to #test
$( "#test" )
// this === "zombie"; handler unbound after first click
.on( "click", $.proxy( me.test, me ) )

// this === "person"
.on( "click", youClick )

// this === "zombie"
.on( "click", $.proxy( you.test, me ) )

// this === "<button> element"
.on( "click", you.test );
</script>

</body>
</html>

example

````Change the context of a function bound to the click handler,

<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery.proxy demo</title>
<script src="https://code.jquery.com/jquery-3.3.1.js"></script>
</head>
<body>

<p><button type="button" id="test">Test</button></p>
<div id="log"></div>

<script>
var me = {
// I'm a dog
type: "dog",

// Note that event comes *after* one and two
test: function( one, two, event ) {
$( "#log" )

// `one` maps to `you`, the 1st additional
// argument in the $.proxy function call
.append( "<h3>Hello " + one.type + ":</h3>" )

// The `this` keyword refers to `me`
// (the 2nd, context, argument of $.proxy)
.append( "I am a " + this.type + ", " )

// `two` maps to `they`, the 2nd additional
// argument in the $.proxy function call
.append( "and they are " + two.type + ".<br>" )

// The event type is "click"
.append( "Thanks for " + event.type + "ing." )

// The clicked element is `event.target`,
// and its type is "button"
.append( "the " + event.target.type + "." );
}
};

var you = { type: "cat" };
var they = { type: "fish" };

// Set up handler to execute me.test() in the context
// of `me`, with `you` and `they` as additional arguments
var proxy = $.proxy( me.test, me, you, they );

$( "#test" )
.on( "click", proxy );
</script>

</body>
</html>

Type parameters

TContext
TReturn
A
B
C
D
E
F
G
T
U
V
W

Parameters

funсtion: function

The function whose context will be changed.
- - (this: TContext, a: A, b: B, c: C, d: D, e: E, f: F, g: G, t: T, u: U, v: V, w: W): TReturn
  - Parameters
    - this: TContext
    - a: A
    - b: B
    - c: C
    - d: D
    - e: E
    - f: F
    - g: G
    - t: T
    - u: U
    - v: V
    - w: W
    Returns TReturn
context: TContext

The object to which the context (this) of the function should be set.
a: A

An argument to be passed to the function referenced in the function argument.
b: B

An argument to be passed to the function referenced in the function argument.
c: C

An argument to be passed to the function referenced in the function argument.
d: D

An argument to be passed to the function referenced in the function argument.
e: E

An argument to be passed to the function referenced in the function argument.
f: F

An argument to be passed to the function referenced in the function argument.
g: G

An argument to be passed to the function referenced in the function argument.

Returns function

- (t: T, u: U, v: V, w: W): TReturn
- Parameters
  - t: T
  - u: U
  - v: V
  - w: W
  Returns TReturn

Takes a function and returns a new one that will always have a particular context.

see

since

1.4

since

1.6

deprecated

Deprecated since 3.3. Use `{@link Function#bind }`.

example

````Change the context of functions bound to a click handler using the "function, context" signature. Unbind the first handler after first click.

<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery.proxy demo</title>
<script src="https://code.jquery.com/jquery-3.3.1.js"></script>
</head>
<body>

<p><button type="button" id="test">Test</button></p>
<div id="log"></div>

<script>
var me = {
type: "zombie",
test: function( event ) {
// Without proxy, `this` would refer to the event target
// use event.target to reference that element.
var element = event.target;
$( element ).css( "background-color", "red" );

// With proxy, `this` refers to the me object encapsulating
// this function.
$( "#log" ).append( "Hello " + this.type + "<br>" );
$( "#test" ).off( "click", this.test );
}
};

var you = {
type: "person",
test: function( event ) {
$( "#log" ).append( this.type + " " );
}
};

// Execute you.test() in the context of the `you` object
// no matter where it is called
// i.e. the `this` keyword will refer to `you`
var youClick = $.proxy( you.test, you );

// attach click handlers to #test
$( "#test" )
// this === "zombie"; handler unbound after first click
.on( "click", $.proxy( me.test, me ) )

// this === "person"
.on( "click", youClick )

// this === "zombie"
.on( "click", $.proxy( you.test, me ) )

// this === "<button> element"
.on( "click", you.test );
</script>

</body>
</html>

example

````Change the context of a function bound to the click handler,

<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery.proxy demo</title>
<script src="https://code.jquery.com/jquery-3.3.1.js"></script>
</head>
<body>

<p><button type="button" id="test">Test</button></p>
<div id="log"></div>

<script>
var me = {
// I'm a dog
type: "dog",

// Note that event comes *after* one and two
test: function( one, two, event ) {
$( "#log" )

// `one` maps to `you`, the 1st additional
// argument in the $.proxy function call
.append( "<h3>Hello " + one.type + ":</h3>" )

// The `this` keyword refers to `me`
// (the 2nd, context, argument of $.proxy)
.append( "I am a " + this.type + ", " )

// `two` maps to `they`, the 2nd additional
// argument in the $.proxy function call
.append( "and they are " + two.type + ".<br>" )

// The event type is "click"
.append( "Thanks for " + event.type + "ing." )

// The clicked element is `event.target`,
// and its type is "button"
.append( "the " + event.target.type + "." );
}
};

var you = { type: "cat" };
var they = { type: "fish" };

// Set up handler to execute me.test() in the context
// of `me`, with `you` and `they` as additional arguments
var proxy = $.proxy( me.test, me, you, they );

$( "#test" )
.on( "click", proxy );
</script>

</body>
</html>

Type parameters

TContext
TReturn
A
B
C
D
E
F
T
U
V
W

Parameters

funсtion: function

The function whose context will be changed.
- - (this: TContext, a: A, b: B, c: C, d: D, e: E, f: F, t: T, u: U, v: V, w: W): TReturn
  - Parameters
    - this: TContext
    - a: A
    - b: B
    - c: C
    - d: D
    - e: E
    - f: F
    - t: T
    - u: U
    - v: V
    - w: W
    Returns TReturn
context: TContext

The object to which the context (this) of the function should be set.
a: A

An argument to be passed to the function referenced in the function argument.
b: B

An argument to be passed to the function referenced in the function argument.
c: C

An argument to be passed to the function referenced in the function argument.
d: D

An argument to be passed to the function referenced in the function argument.
e: E

An argument to be passed to the function referenced in the function argument.
f: F

An argument to be passed to the function referenced in the function argument.

Returns function

- (t: T, u: U, v: V, w: W): TReturn
- Parameters
  - t: T
  - u: U
  - v: V
  - w: W
  Returns TReturn

Takes a function and returns a new one that will always have a particular context.

see

since

1.4

since

1.6

deprecated

Deprecated since 3.3. Use `{@link Function#bind }`.

example

````Change the context of functions bound to a click handler using the "function, context" signature. Unbind the first handler after first click.

<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery.proxy demo</title>
<script src="https://code.jquery.com/jquery-3.3.1.js"></script>
</head>
<body>

<p><button type="button" id="test">Test</button></p>
<div id="log"></div>

<script>
var me = {
type: "zombie",
test: function( event ) {
// Without proxy, `this` would refer to the event target
// use event.target to reference that element.
var element = event.target;
$( element ).css( "background-color", "red" );

// With proxy, `this` refers to the me object encapsulating
// this function.
$( "#log" ).append( "Hello " + this.type + "<br>" );
$( "#test" ).off( "click", this.test );
}
};

var you = {
type: "person",
test: function( event ) {
$( "#log" ).append( this.type + " " );
}
};

// Execute you.test() in the context of the `you` object
// no matter where it is called
// i.e. the `this` keyword will refer to `you`
var youClick = $.proxy( you.test, you );

// attach click handlers to #test
$( "#test" )
// this === "zombie"; handler unbound after first click
.on( "click", $.proxy( me.test, me ) )

// this === "person"
.on( "click", youClick )

// this === "zombie"
.on( "click", $.proxy( you.test, me ) )

// this === "<button> element"
.on( "click", you.test );
</script>

</body>
</html>

example

````Change the context of a function bound to the click handler,

<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery.proxy demo</title>
<script src="https://code.jquery.com/jquery-3.3.1.js"></script>
</head>
<body>

<p><button type="button" id="test">Test</button></p>
<div id="log"></div>

<script>
var me = {
// I'm a dog
type: "dog",

// Note that event comes *after* one and two
test: function( one, two, event ) {
$( "#log" )

// `one` maps to `you`, the 1st additional
// argument in the $.proxy function call
.append( "<h3>Hello " + one.type + ":</h3>" )

// The `this` keyword refers to `me`
// (the 2nd, context, argument of $.proxy)
.append( "I am a " + this.type + ", " )

// `two` maps to `they`, the 2nd additional
// argument in the $.proxy function call
.append( "and they are " + two.type + ".<br>" )

// The event type is "click"
.append( "Thanks for " + event.type + "ing." )

// The clicked element is `event.target`,
// and its type is "button"
.append( "the " + event.target.type + "." );
}
};

var you = { type: "cat" };
var they = { type: "fish" };

// Set up handler to execute me.test() in the context
// of `me`, with `you` and `they` as additional arguments
var proxy = $.proxy( me.test, me, you, they );

$( "#test" )
.on( "click", proxy );
</script>

</body>
</html>

Type parameters

TContext
TReturn
A
B
C
D
E
T
U
V
W

Parameters

funсtion: function

The function whose context will be changed.
- - (this: TContext, a: A, b: B, c: C, d: D, e: E, t: T, u: U, v: V, w: W): TReturn
  - Parameters
    - this: TContext
    - a: A
    - b: B
    - c: C
    - d: D
    - e: E
    - t: T
    - u: U
    - v: V
    - w: W
    Returns TReturn
context: TContext

The object to which the context (this) of the function should be set.
a: A

An argument to be passed to the function referenced in the function argument.
b: B

An argument to be passed to the function referenced in the function argument.
c: C

An argument to be passed to the function referenced in the function argument.
d: D

An argument to be passed to the function referenced in the function argument.
e: E

An argument to be passed to the function referenced in the function argument.

Returns function

- (t: T, u: U, v: V, w: W): TReturn
- Parameters
  - t: T
  - u: U
  - v: V
  - w: W
  Returns TReturn

Takes a function and returns a new one that will always have a particular context.

see

since

1.4

since

1.6

deprecated

Deprecated since 3.3. Use `{@link Function#bind }`.

example

````Change the context of functions bound to a click handler using the "function, context" signature. Unbind the first handler after first click.

<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery.proxy demo</title>
<script src="https://code.jquery.com/jquery-3.3.1.js"></script>
</head>
<body>

<p><button type="button" id="test">Test</button></p>
<div id="log"></div>

<script>
var me = {
type: "zombie",
test: function( event ) {
// Without proxy, `this` would refer to the event target
// use event.target to reference that element.
var element = event.target;
$( element ).css( "background-color", "red" );

// With proxy, `this` refers to the me object encapsulating
// this function.
$( "#log" ).append( "Hello " + this.type + "<br>" );
$( "#test" ).off( "click", this.test );
}
};

var you = {
type: "person",
test: function( event ) {
$( "#log" ).append( this.type + " " );
}
};

// Execute you.test() in the context of the `you` object
// no matter where it is called
// i.e. the `this` keyword will refer to `you`
var youClick = $.proxy( you.test, you );

// attach click handlers to #test
$( "#test" )
// this === "zombie"; handler unbound after first click
.on( "click", $.proxy( me.test, me ) )

// this === "person"
.on( "click", youClick )

// this === "zombie"
.on( "click", $.proxy( you.test, me ) )

// this === "<button> element"
.on( "click", you.test );
</script>

</body>
</html>

example

````Change the context of a function bound to the click handler,

<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery.proxy demo</title>
<script src="https://code.jquery.com/jquery-3.3.1.js"></script>
</head>
<body>

<p><button type="button" id="test">Test</button></p>
<div id="log"></div>

<script>
var me = {
// I'm a dog
type: "dog",

// Note that event comes *after* one and two
test: function( one, two, event ) {
$( "#log" )

// `one` maps to `you`, the 1st additional
// argument in the $.proxy function call
.append( "<h3>Hello " + one.type + ":</h3>" )

// The `this` keyword refers to `me`
// (the 2nd, context, argument of $.proxy)
.append( "I am a " + this.type + ", " )

// `two` maps to `they`, the 2nd additional
// argument in the $.proxy function call
.append( "and they are " + two.type + ".<br>" )

// The event type is "click"
.append( "Thanks for " + event.type + "ing." )

// The clicked element is `event.target`,
// and its type is "button"
.append( "the " + event.target.type + "." );
}
};

var you = { type: "cat" };
var they = { type: "fish" };

// Set up handler to execute me.test() in the context
// of `me`, with `you` and `they` as additional arguments
var proxy = $.proxy( me.test, me, you, they );

$( "#test" )
.on( "click", proxy );
</script>

</body>
</html>

Type parameters

TContext
TReturn
A
B
C
D
T
U
V
W

Parameters

funсtion: function

The function whose context will be changed.
- - (this: TContext, a: A, b: B, c: C, d: D, t: T, u: U, v: V, w: W): TReturn
  - Parameters
    - this: TContext
    - a: A
    - b: B
    - c: C
    - d: D
    - t: T
    - u: U
    - v: V
    - w: W
    Returns TReturn
context: TContext

The object to which the context (this) of the function should be set.
a: A

An argument to be passed to the function referenced in the function argument.
b: B

An argument to be passed to the function referenced in the function argument.
c: C

An argument to be passed to the function referenced in the function argument.
d: D

An argument to be passed to the function referenced in the function argument.

Returns function

- (t: T, u: U, v: V, w: W): TReturn
- Parameters
  - t: T
  - u: U
  - v: V
  - w: W
  Returns TReturn

Takes a function and returns a new one that will always have a particular context.

see

since

1.4

since

1.6

deprecated

Deprecated since 3.3. Use `{@link Function#bind }`.

example

````Change the context of functions bound to a click handler using the "function, context" signature. Unbind the first handler after first click.

<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery.proxy demo</title>
<script src="https://code.jquery.com/jquery-3.3.1.js"></script>
</head>
<body>

<p><button type="button" id="test">Test</button></p>
<div id="log"></div>

<script>
var me = {
type: "zombie",
test: function( event ) {
// Without proxy, `this` would refer to the event target
// use event.target to reference that element.
var element = event.target;
$( element ).css( "background-color", "red" );

// With proxy, `this` refers to the me object encapsulating
// this function.
$( "#log" ).append( "Hello " + this.type + "<br>" );
$( "#test" ).off( "click", this.test );
}
};

var you = {
type: "person",
test: function( event ) {
$( "#log" ).append( this.type + " " );
}
};

// Execute you.test() in the context of the `you` object
// no matter where it is called
// i.e. the `this` keyword will refer to `you`
var youClick = $.proxy( you.test, you );

// attach click handlers to #test
$( "#test" )
// this === "zombie"; handler unbound after first click
.on( "click", $.proxy( me.test, me ) )

// this === "person"
.on( "click", youClick )

// this === "zombie"
.on( "click", $.proxy( you.test, me ) )

// this === "<button> element"
.on( "click", you.test );
</script>

</body>
</html>

example

````Change the context of a function bound to the click handler,

<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery.proxy demo</title>
<script src="https://code.jquery.com/jquery-3.3.1.js"></script>
</head>
<body>

<p><button type="button" id="test">Test</button></p>
<div id="log"></div>

<script>
var me = {
// I'm a dog
type: "dog",

// Note that event comes *after* one and two
test: function( one, two, event ) {
$( "#log" )

// `one` maps to `you`, the 1st additional
// argument in the $.proxy function call
.append( "<h3>Hello " + one.type + ":</h3>" )

// The `this` keyword refers to `me`
// (the 2nd, context, argument of $.proxy)
.append( "I am a " + this.type + ", " )

// `two` maps to `they`, the 2nd additional
// argument in the $.proxy function call
.append( "and they are " + two.type + ".<br>" )

// The event type is "click"
.append( "Thanks for " + event.type + "ing." )

// The clicked element is `event.target`,
// and its type is "button"
.append( "the " + event.target.type + "." );
}
};

var you = { type: "cat" };
var they = { type: "fish" };

// Set up handler to execute me.test() in the context
// of `me`, with `you` and `they` as additional arguments
var proxy = $.proxy( me.test, me, you, they );

$( "#test" )
.on( "click", proxy );
</script>

</body>
</html>

Type parameters

TContext
TReturn
A
B
C
T
U
V
W

Parameters

funсtion: function

The function whose context will be changed.
- - (this: TContext, a: A, b: B, c: C, t: T, u: U, v: V, w: W): TReturn
  - Parameters
    - this: TContext
    - a: A
    - b: B
    - c: C
    - t: T
    - u: U
    - v: V
    - w: W
    Returns TReturn
context: TContext

The object to which the context (this) of the function should be set.
a: A

An argument to be passed to the function referenced in the function argument.
b: B

An argument to be passed to the function referenced in the function argument.
c: C

An argument to be passed to the function referenced in the function argument.

Returns function

- (t: T, u: U, v: V, w: W): TReturn
- Parameters
  - t: T
  - u: U
  - v: V
  - w: W
  Returns TReturn

Takes a function and returns a new one that will always have a particular context.

see

since

1.4

since

1.6

deprecated

Deprecated since 3.3. Use `{@link Function#bind }`.

example

````Change the context of functions bound to a click handler using the "function, context" signature. Unbind the first handler after first click.

<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery.proxy demo</title>
<script src="https://code.jquery.com/jquery-3.3.1.js"></script>
</head>
<body>

<p><button type="button" id="test">Test</button></p>
<div id="log"></div>

<script>
var me = {
type: "zombie",
test: function( event ) {
// Without proxy, `this` would refer to the event target
// use event.target to reference that element.
var element = event.target;
$( element ).css( "background-color", "red" );

// With proxy, `this` refers to the me object encapsulating
// this function.
$( "#log" ).append( "Hello " + this.type + "<br>" );
$( "#test" ).off( "click", this.test );
}
};

var you = {
type: "person",
test: function( event ) {
$( "#log" ).append( this.type + " " );
}
};

// Execute you.test() in the context of the `you` object
// no matter where it is called
// i.e. the `this` keyword will refer to `you`
var youClick = $.proxy( you.test, you );

// attach click handlers to #test
$( "#test" )
// this === "zombie"; handler unbound after first click
.on( "click", $.proxy( me.test, me ) )

// this === "person"
.on( "click", youClick )

// this === "zombie"
.on( "click", $.proxy( you.test, me ) )

// this === "<button> element"
.on( "click", you.test );
</script>

</body>
</html>

example

````Change the context of a function bound to the click handler,

<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery.proxy demo</title>
<script src="https://code.jquery.com/jquery-3.3.1.js"></script>
</head>
<body>

<p><button type="button" id="test">Test</button></p>
<div id="log"></div>

<script>
var me = {
// I'm a dog
type: "dog",

// Note that event comes *after* one and two
test: function( one, two, event ) {
$( "#log" )

// `one` maps to `you`, the 1st additional
// argument in the $.proxy function call
.append( "<h3>Hello " + one.type + ":</h3>" )

// The `this` keyword refers to `me`
// (the 2nd, context, argument of $.proxy)
.append( "I am a " + this.type + ", " )

// `two` maps to `they`, the 2nd additional
// argument in the $.proxy function call
.append( "and they are " + two.type + ".<br>" )

// The event type is "click"
.append( "Thanks for " + event.type + "ing." )

// The clicked element is `event.target`,
// and its type is "button"
.append( "the " + event.target.type + "." );
}
};

var you = { type: "cat" };
var they = { type: "fish" };

// Set up handler to execute me.test() in the context
// of `me`, with `you` and `they` as additional arguments
var proxy = $.proxy( me.test, me, you, they );

$( "#test" )
.on( "click", proxy );
</script>

</body>
</html>

Type parameters

TContext
TReturn
A
B
T
U
V
W

Parameters

funсtion: function

The function whose context will be changed.
- - (this: TContext, a: A, b: B, t: T, u: U, v: V, w: W): TReturn
  - Parameters
    - this: TContext
    - a: A
    - b: B
    - t: T
    - u: U
    - v: V
    - w: W
    Returns TReturn
context: TContext

The object to which the context (this) of the function should be set.
a: A

An argument to be passed to the function referenced in the function argument.
b: B

An argument to be passed to the function referenced in the function argument.

Returns function

- (t: T, u: U, v: V, w: W): TReturn
- Parameters
  - t: T
  - u: U
  - v: V
  - w: W
  Returns TReturn

Takes a function and returns a new one that will always have a particular context.

see

since

1.4

since

1.6

deprecated

Deprecated since 3.3. Use `{@link Function#bind }`.

example

````Change the context of functions bound to a click handler using the "function, context" signature. Unbind the first handler after first click.

<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery.proxy demo</title>
<script src="https://code.jquery.com/jquery-3.3.1.js"></script>
</head>
<body>

<p><button type="button" id="test">Test</button></p>
<div id="log"></div>

<script>
var me = {
type: "zombie",
test: function( event ) {
// Without proxy, `this` would refer to the event target
// use event.target to reference that element.
var element = event.target;
$( element ).css( "background-color", "red" );

// With proxy, `this` refers to the me object encapsulating
// this function.
$( "#log" ).append( "Hello " + this.type + "<br>" );
$( "#test" ).off( "click", this.test );
}
};

var you = {
type: "person",
test: function( event ) {
$( "#log" ).append( this.type + " " );
}
};

// Execute you.test() in the context of the `you` object
// no matter where it is called
// i.e. the `this` keyword will refer to `you`
var youClick = $.proxy( you.test, you );

// attach click handlers to #test
$( "#test" )
// this === "zombie"; handler unbound after first click
.on( "click", $.proxy( me.test, me ) )

// this === "person"
.on( "click", youClick )

// this === "zombie"
.on( "click", $.proxy( you.test, me ) )

// this === "<button> element"
.on( "click", you.test );
</script>

</body>
</html>

example

````Change the context of a function bound to the click handler,

<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery.proxy demo</title>
<script src="https://code.jquery.com/jquery-3.3.1.js"></script>
</head>
<body>

<p><button type="button" id="test">Test</button></p>
<div id="log"></div>

<script>
var me = {
// I'm a dog
type: "dog",

// Note that event comes *after* one and two
test: function( one, two, event ) {
$( "#log" )

// `one` maps to `you`, the 1st additional
// argument in the $.proxy function call
.append( "<h3>Hello " + one.type + ":</h3>" )

// The `this` keyword refers to `me`
// (the 2nd, context, argument of $.proxy)
.append( "I am a " + this.type + ", " )

// `two` maps to `they`, the 2nd additional
// argument in the $.proxy function call
.append( "and they are " + two.type + ".<br>" )

// The event type is "click"
.append( "Thanks for " + event.type + "ing." )

// The clicked element is `event.target`,
// and its type is "button"
.append( "the " + event.target.type + "." );
}
};

var you = { type: "cat" };
var they = { type: "fish" };

// Set up handler to execute me.test() in the context
// of `me`, with `you` and `they` as additional arguments
var proxy = $.proxy( me.test, me, you, they );

$( "#test" )
.on( "click", proxy );
</script>

</body>
</html>

Type parameters

TContext
TReturn
A
T
U
V
W

Parameters

funсtion: function

The function whose context will be changed.
- - (this: TContext, a: A, t: T, u: U, v: V, w: W): TReturn
  - Parameters
    - this: TContext
    - a: A
    - t: T
    - u: U
    - v: V
    - w: W
    Returns TReturn
context: TContext

The object to which the context (this) of the function should be set.
a: A

An argument to be passed to the function referenced in the function argument.

Returns function

- (t: T, u: U, v: V, w: W): TReturn
- Parameters
  - t: T
  - u: U
  - v: V
  - w: W
  Returns TReturn

Takes a function and returns a new one that will always have a particular context.

see

since

1.4

since

1.6

deprecated

Deprecated since 3.3. Use `{@link Function#bind }`.

example

````Change the context of functions bound to a click handler using the "function, context" signature. Unbind the first handler after first click.

<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery.proxy demo</title>
<script src="https://code.jquery.com/jquery-3.3.1.js"></script>
</head>
<body>

<p><button type="button" id="test">Test</button></p>
<div id="log"></div>

<script>
var me = {
type: "zombie",
test: function( event ) {
// Without proxy, `this` would refer to the event target
// use event.target to reference that element.
var element = event.target;
$( element ).css( "background-color", "red" );

// With proxy, `this` refers to the me object encapsulating
// this function.
$( "#log" ).append( "Hello " + this.type + "<br>" );
$( "#test" ).off( "click", this.test );
}
};

var you = {
type: "person",
test: function( event ) {
$( "#log" ).append( this.type + " " );
}
};

// Execute you.test() in the context of the `you` object
// no matter where it is called
// i.e. the `this` keyword will refer to `you`
var youClick = $.proxy( you.test, you );

// attach click handlers to #test
$( "#test" )
// this === "zombie"; handler unbound after first click
.on( "click", $.proxy( me.test, me ) )

// this === "person"
.on( "click", youClick )

// this === "zombie"
.on( "click", $.proxy( you.test, me ) )

// this === "<button> element"
.on( "click", you.test );
</script>

</body>
</html>

example

````Change the context of a function bound to the click handler,

<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery.proxy demo</title>
<script src="https://code.jquery.com/jquery-3.3.1.js"></script>
</head>
<body>

<p><button type="button" id="test">Test</button></p>
<div id="log"></div>

<script>
var me = {
// I'm a dog
type: "dog",

// Note that event comes *after* one and two
test: function( one, two, event ) {
$( "#log" )

// `one` maps to `you`, the 1st additional
// argument in the $.proxy function call
.append( "<h3>Hello " + one.type + ":</h3>" )

// The `this` keyword refers to `me`
// (the 2nd, context, argument of $.proxy)
.append( "I am a " + this.type + ", " )

// `two` maps to `they`, the 2nd additional
// argument in the $.proxy function call
.append( "and they are " + two.type + ".<br>" )

// The event type is "click"
.append( "Thanks for " + event.type + "ing." )

// The clicked element is `event.target`,
// and its type is "button"
.append( "the " + event.target.type + "." );
}
};

var you = { type: "cat" };
var they = { type: "fish" };

// Set up handler to execute me.test() in the context
// of `me`, with `you` and `they` as additional arguments
var proxy = $.proxy( me.test, me, you, they );

$( "#test" )
.on( "click", proxy );
</script>

</body>
</html>

Type parameters

TContext
TReturn
T
U
V
W

Parameters

funсtion: function

The function whose context will be changed.
- - (this: TContext, t: T, u: U, v: V, w: W): TReturn
  - Parameters
    - this: TContext
    - t: T
    - u: U
    - v: V
    - w: W
    Returns TReturn
context: TContext

The object to which the context (this) of the function should be set.

Returns function

- (t: T, u: U, v: V, w: W): TReturn
- Parameters
  - t: T
  - u: U
  - v: V
  - w: W
  Returns TReturn

Takes a function and returns a new one that will always have a particular context.

see

since

1.4

since

1.6

deprecated

Deprecated since 3.3. Use `{@link Function#bind }`.

example

````Change the context of functions bound to a click handler using the "function, context" signature. Unbind the first handler after first click.

<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery.proxy demo</title>
<script src="https://code.jquery.com/jquery-3.3.1.js"></script>
</head>
<body>

<p><button type="button" id="test">Test</button></p>
<div id="log"></div>

<script>
var me = {
type: "zombie",
test: function( event ) {
// Without proxy, `this` would refer to the event target
// use event.target to reference that element.
var element = event.target;
$( element ).css( "background-color", "red" );

// With proxy, `this` refers to the me object encapsulating
// this function.
$( "#log" ).append( "Hello " + this.type + "<br>" );
$( "#test" ).off( "click", this.test );
}
};

var you = {
type: "person",
test: function( event ) {
$( "#log" ).append( this.type + " " );
}
};

// Execute you.test() in the context of the `you` object
// no matter where it is called
// i.e. the `this` keyword will refer to `you`
var youClick = $.proxy( you.test, you );

// attach click handlers to #test
$( "#test" )
// this === "zombie"; handler unbound after first click
.on( "click", $.proxy( me.test, me ) )

// this === "person"
.on( "click", youClick )

// this === "zombie"
.on( "click", $.proxy( you.test, me ) )

// this === "<button> element"
.on( "click", you.test );
</script>

</body>
</html>

example

````Change the context of a function bound to the click handler,

<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery.proxy demo</title>
<script src="https://code.jquery.com/jquery-3.3.1.js"></script>
</head>
<body>

<p><button type="button" id="test">Test</button></p>
<div id="log"></div>

<script>
var me = {
// I'm a dog
type: "dog",

// Note that event comes *after* one and two
test: function( one, two, event ) {
$( "#log" )

// `one` maps to `you`, the 1st additional
// argument in the $.proxy function call
.append( "<h3>Hello " + one.type + ":</h3>" )

// The `this` keyword refers to `me`
// (the 2nd, context, argument of $.proxy)
.append( "I am a " + this.type + ", " )

// `two` maps to `they`, the 2nd additional
// argument in the $.proxy function call
.append( "and they are " + two.type + ".<br>" )

// The event type is "click"
.append( "Thanks for " + event.type + "ing." )

// The clicked element is `event.target`,
// and its type is "button"
.append( "the " + event.target.type + "." );
}
};

var you = { type: "cat" };
var they = { type: "fish" };

// Set up handler to execute me.test() in the context
// of `me`, with `you` and `they` as additional arguments
var proxy = $.proxy( me.test, me, you, they );

$( "#test" )
.on( "click", proxy );
</script>

</body>
</html>

Type parameters

TContext
TReturn
A
B
C
D
E
F
G
T
U
V
W
X

Parameters

funсtion: function

The function whose context will be changed.
- - (this: TContext, a: A, b: B, c: C, d: D, e: E, f: F, g: G, t: T, u: U, v: V, w: W, x: X): TReturn
  - Parameters
    - this: TContext
    - a: A
    - b: B
    - c: C
    - d: D
    - e: E
    - f: F
    - g: G
    - t: T
    - u: U
    - v: V
    - w: W
    - x: X
    Returns TReturn
context: TContext

The object to which the context (this) of the function should be set.
a: A

An argument to be passed to the function referenced in the function argument.
b: B

An argument to be passed to the function referenced in the function argument.
c: C

An argument to be passed to the function referenced in the function argument.
d: D

An argument to be passed to the function referenced in the function argument.
e: E

An argument to be passed to the function referenced in the function argument.
f: F

An argument to be passed to the function referenced in the function argument.
g: G

An argument to be passed to the function referenced in the function argument.

Returns function

- (t: T, u: U, v: V, w: W, x: X): TReturn
- Parameters
  - t: T
  - u: U
  - v: V
  - w: W
  - x: X
  Returns TReturn

Takes a function and returns a new one that will always have a particular context.

see

since

1.4

since

1.6

deprecated

Deprecated since 3.3. Use `{@link Function#bind }`.

example

````Change the context of functions bound to a click handler using the "function, context" signature. Unbind the first handler after first click.

<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery.proxy demo</title>
<script src="https://code.jquery.com/jquery-3.3.1.js"></script>
</head>
<body>

<p><button type="button" id="test">Test</button></p>
<div id="log"></div>

<script>
var me = {
type: "zombie",
test: function( event ) {
// Without proxy, `this` would refer to the event target
// use event.target to reference that element.
var element = event.target;
$( element ).css( "background-color", "red" );

// With proxy, `this` refers to the me object encapsulating
// this function.
$( "#log" ).append( "Hello " + this.type + "<br>" );
$( "#test" ).off( "click", this.test );
}
};

var you = {
type: "person",
test: function( event ) {
$( "#log" ).append( this.type + " " );
}
};

// Execute you.test() in the context of the `you` object
// no matter where it is called
// i.e. the `this` keyword will refer to `you`
var youClick = $.proxy( you.test, you );

// attach click handlers to #test
$( "#test" )
// this === "zombie"; handler unbound after first click
.on( "click", $.proxy( me.test, me ) )

// this === "person"
.on( "click", youClick )

// this === "zombie"
.on( "click", $.proxy( you.test, me ) )

// this === "<button> element"
.on( "click", you.test );
</script>

</body>
</html>

example

````Change the context of a function bound to the click handler,

<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery.proxy demo</title>
<script src="https://code.jquery.com/jquery-3.3.1.js"></script>
</head>
<body>

<p><button type="button" id="test">Test</button></p>
<div id="log"></div>

<script>
var me = {
// I'm a dog
type: "dog",

// Note that event comes *after* one and two
test: function( one, two, event ) {
$( "#log" )

// `one` maps to `you`, the 1st additional
// argument in the $.proxy function call
.append( "<h3>Hello " + one.type + ":</h3>" )

// The `this` keyword refers to `me`
// (the 2nd, context, argument of $.proxy)
.append( "I am a " + this.type + ", " )

// `two` maps to `they`, the 2nd additional
// argument in the $.proxy function call
.append( "and they are " + two.type + ".<br>" )

// The event type is "click"
.append( "Thanks for " + event.type + "ing." )

// The clicked element is `event.target`,
// and its type is "button"
.append( "the " + event.target.type + "." );
}
};

var you = { type: "cat" };
var they = { type: "fish" };

// Set up handler to execute me.test() in the context
// of `me`, with `you` and `they` as additional arguments
var proxy = $.proxy( me.test, me, you, they );

$( "#test" )
.on( "click", proxy );
</script>

</body>
</html>

Type parameters

TContext
TReturn
A
B
C
D
E
F
T
U
V
W
X

Parameters

funсtion: function

The function whose context will be changed.
- - (this: TContext, a: A, b: B, c: C, d: D, e: E, f: F, t: T, u: U, v: V, w: W, x: X): TReturn
  - Parameters
    - this: TContext
    - a: A
    - b: B
    - c: C
    - d: D
    - e: E
    - f: F
    - t: T
    - u: U
    - v: V
    - w: W
    - x: X
    Returns TReturn
context: TContext

The object to which the context (this) of the function should be set.
a: A

An argument to be passed to the function referenced in the function argument.
b: B

An argument to be passed to the function referenced in the function argument.
c: C

An argument to be passed to the function referenced in the function argument.
d: D

An argument to be passed to the function referenced in the function argument.
e: E

An argument to be passed to the function referenced in the function argument.
f: F

An argument to be passed to the function referenced in the function argument.

Returns function

- (t: T, u: U, v: V, w: W, x: X): TReturn
- Parameters
  - t: T
  - u: U
  - v: V
  - w: W
  - x: X
  Returns TReturn

Takes a function and returns a new one that will always have a particular context.

see

since

1.4

since

1.6

deprecated

Deprecated since 3.3. Use `{@link Function#bind }`.

example

````Change the context of functions bound to a click handler using the "function, context" signature. Unbind the first handler after first click.

<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery.proxy demo</title>
<script src="https://code.jquery.com/jquery-3.3.1.js"></script>
</head>
<body>

<p><button type="button" id="test">Test</button></p>
<div id="log"></div>

<script>
var me = {
type: "zombie",
test: function( event ) {
// Without proxy, `this` would refer to the event target
// use event.target to reference that element.
var element = event.target;
$( element ).css( "background-color", "red" );

// With proxy, `this` refers to the me object encapsulating
// this function.
$( "#log" ).append( "Hello " + this.type + "<br>" );
$( "#test" ).off( "click", this.test );
}
};

var you = {
type: "person",
test: function( event ) {
$( "#log" ).append( this.type + " " );
}
};

// Execute you.test() in the context of the `you` object
// no matter where it is called
// i.e. the `this` keyword will refer to `you`
var youClick = $.proxy( you.test, you );

// attach click handlers to #test
$( "#test" )
// this === "zombie"; handler unbound after first click
.on( "click", $.proxy( me.test, me ) )

// this === "person"
.on( "click", youClick )

// this === "zombie"
.on( "click", $.proxy( you.test, me ) )

// this === "<button> element"
.on( "click", you.test );
</script>

</body>
</html>

example

````Change the context of a function bound to the click handler,

<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery.proxy demo</title>
<script src="https://code.jquery.com/jquery-3.3.1.js"></script>
</head>
<body>

<p><button type="button" id="test">Test</button></p>
<div id="log"></div>

<script>
var me = {
// I'm a dog
type: "dog",

// Note that event comes *after* one and two
test: function( one, two, event ) {
$( "#log" )

// `one` maps to `you`, the 1st additional
// argument in the $.proxy function call
.append( "<h3>Hello " + one.type + ":</h3>" )

// The `this` keyword refers to `me`
// (the 2nd, context, argument of $.proxy)
.append( "I am a " + this.type + ", " )

// `two` maps to `they`, the 2nd additional
// argument in the $.proxy function call
.append( "and they are " + two.type + ".<br>" )

// The event type is "click"
.append( "Thanks for " + event.type + "ing." )

// The clicked element is `event.target`,
// and its type is "button"
.append( "the " + event.target.type + "." );
}
};

var you = { type: "cat" };
var they = { type: "fish" };

// Set up handler to execute me.test() in the context
// of `me`, with `you` and `they` as additional arguments
var proxy = $.proxy( me.test, me, you, they );

$( "#test" )
.on( "click", proxy );
</script>

</body>
</html>

Type parameters

TContext
TReturn
A
B
C
D
E
T
U
V
W
X

Parameters

funсtion: function

The function whose context will be changed.
- - (this: TContext, a: A, b: B, c: C, d: D, e: E, t: T, u: U, v: V, w: W, x: X): TReturn
  - Parameters
    - this: TContext
    - a: A
    - b: B
    - c: C
    - d: D
    - e: E
    - t: T
    - u: U
    - v: V
    - w: W
    - x: X
    Returns TReturn
context: TContext

The object to which the context (this) of the function should be set.
a: A

An argument to be passed to the function referenced in the function argument.
b: B

An argument to be passed to the function referenced in the function argument.
c: C

An argument to be passed to the function referenced in the function argument.
d: D

An argument to be passed to the function referenced in the function argument.
e: E

An argument to be passed to the function referenced in the function argument.

Returns function

- (t: T, u: U, v: V, w: W, x: X): TReturn
- Parameters
  - t: T
  - u: U
  - v: V
  - w: W
  - x: X
  Returns TReturn

Takes a function and returns a new one that will always have a particular context.

see

since

1.4

since

1.6

deprecated

Deprecated since 3.3. Use `{@link Function#bind }`.

example

````Change the context of functions bound to a click handler using the "function, context" signature. Unbind the first handler after first click.

<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery.proxy demo</title>
<script src="https://code.jquery.com/jquery-3.3.1.js"></script>
</head>
<body>

<p><button type="button" id="test">Test</button></p>
<div id="log"></div>

<script>
var me = {
type: "zombie",
test: function( event ) {
// Without proxy, `this` would refer to the event target
// use event.target to reference that element.
var element = event.target;
$( element ).css( "background-color", "red" );

// With proxy, `this` refers to the me object encapsulating
// this function.
$( "#log" ).append( "Hello " + this.type + "<br>" );
$( "#test" ).off( "click", this.test );
}
};

var you = {
type: "person",
test: function( event ) {
$( "#log" ).append( this.type + " " );
}
};

// Execute you.test() in the context of the `you` object
// no matter where it is called
// i.e. the `this` keyword will refer to `you`
var youClick = $.proxy( you.test, you );

// attach click handlers to #test
$( "#test" )
// this === "zombie"; handler unbound after first click
.on( "click", $.proxy( me.test, me ) )

// this === "person"
.on( "click", youClick )

// this === "zombie"
.on( "click", $.proxy( you.test, me ) )

// this === "<button> element"
.on( "click", you.test );
</script>

</body>
</html>

example

````Change the context of a function bound to the click handler,

<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery.proxy demo</title>
<script src="https://code.jquery.com/jquery-3.3.1.js"></script>
</head>
<body>

<p><button type="button" id="test">Test</button></p>
<div id="log"></div>

<script>
var me = {
// I'm a dog
type: "dog",

// Note that event comes *after* one and two
test: function( one, two, event ) {
$( "#log" )

// `one` maps to `you`, the 1st additional
// argument in the $.proxy function call
.append( "<h3>Hello " + one.type + ":</h3>" )

// The `this` keyword refers to `me`
// (the 2nd, context, argument of $.proxy)
.append( "I am a " + this.type + ", " )

// `two` maps to `they`, the 2nd additional
// argument in the $.proxy function call
.append( "and they are " + two.type + ".<br>" )

// The event type is "click"
.append( "Thanks for " + event.type + "ing." )

// The clicked element is `event.target`,
// and its type is "button"
.append( "the " + event.target.type + "." );
}
};

var you = { type: "cat" };
var they = { type: "fish" };

// Set up handler to execute me.test() in the context
// of `me`, with `you` and `they` as additional arguments
var proxy = $.proxy( me.test, me, you, they );

$( "#test" )
.on( "click", proxy );
</script>

</body>
</html>

Type parameters

TContext
TReturn
A
B
C
D
T
U
V
W
X

Parameters

funсtion: function

The function whose context will be changed.
- - (this: TContext, a: A, b: B, c: C, d: D, t: T, u: U, v: V, w: W, x: X): TReturn
  - Parameters
    - this: TContext
    - a: A
    - b: B
    - c: C
    - d: D
    - t: T
    - u: U
    - v: V
    - w: W
    - x: X
    Returns TReturn
context: TContext

The object to which the context (this) of the function should be set.
a: A

An argument to be passed to the function referenced in the function argument.
b: B

An argument to be passed to the function referenced in the function argument.
c: C

An argument to be passed to the function referenced in the function argument.
d: D

An argument to be passed to the function referenced in the function argument.

Returns function

- (t: T, u: U, v: V, w: W, x: X): TReturn
- Parameters
  - t: T
  - u: U
  - v: V
  - w: W
  - x: X
  Returns TReturn

Takes a function and returns a new one that will always have a particular context.

see

since

1.4

since

1.6

deprecated

Deprecated since 3.3. Use `{@link Function#bind }`.

example

````Change the context of functions bound to a click handler using the "function, context" signature. Unbind the first handler after first click.

<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery.proxy demo</title>
<script src="https://code.jquery.com/jquery-3.3.1.js"></script>
</head>
<body>

<p><button type="button" id="test">Test</button></p>
<div id="log"></div>

<script>
var me = {
type: "zombie",
test: function( event ) {
// Without proxy, `this` would refer to the event target
// use event.target to reference that element.
var element = event.target;
$( element ).css( "background-color", "red" );

// With proxy, `this` refers to the me object encapsulating
// this function.
$( "#log" ).append( "Hello " + this.type + "<br>" );
$( "#test" ).off( "click", this.test );
}
};

var you = {
type: "person",
test: function( event ) {
$( "#log" ).append( this.type + " " );
}
};

// Execute you.test() in the context of the `you` object
// no matter where it is called
// i.e. the `this` keyword will refer to `you`
var youClick = $.proxy( you.test, you );

// attach click handlers to #test
$( "#test" )
// this === "zombie"; handler unbound after first click
.on( "click", $.proxy( me.test, me ) )

// this === "person"
.on( "click", youClick )

// this === "zombie"
.on( "click", $.proxy( you.test, me ) )

// this === "<button> element"
.on( "click", you.test );
</script>

</body>
</html>

example

````Change the context of a function bound to the click handler,

<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery.proxy demo</title>
<script src="https://code.jquery.com/jquery-3.3.1.js"></script>
</head>
<body>

<p><button type="button" id="test">Test</button></p>
<div id="log"></div>

<script>
var me = {
// I'm a dog
type: "dog",

// Note that event comes *after* one and two
test: function( one, two, event ) {
$( "#log" )

// `one` maps to `you`, the 1st additional
// argument in the $.proxy function call
.append( "<h3>Hello " + one.type + ":</h3>" )

// The `this` keyword refers to `me`
// (the 2nd, context, argument of $.proxy)
.append( "I am a " + this.type + ", " )

// `two` maps to `they`, the 2nd additional
// argument in the $.proxy function call
.append( "and they are " + two.type + ".<br>" )

// The event type is "click"
.append( "Thanks for " + event.type + "ing." )

// The clicked element is `event.target`,
// and its type is "button"
.append( "the " + event.target.type + "." );
}
};

var you = { type: "cat" };
var they = { type: "fish" };

// Set up handler to execute me.test() in the context
// of `me`, with `you` and `they` as additional arguments
var proxy = $.proxy( me.test, me, you, they );

$( "#test" )
.on( "click", proxy );
</script>

</body>
</html>

Type parameters

TContext
TReturn
A
B
C
T
U
V
W
X

Parameters

funсtion: function

The function whose context will be changed.
- - (this: TContext, a: A, b: B, c: C, t: T, u: U, v: V, w: W, x: X): TReturn
  - Parameters
    - this: TContext
    - a: A
    - b: B
    - c: C
    - t: T
    - u: U
    - v: V
    - w: W
    - x: X
    Returns TReturn
context: TContext

The object to which the context (this) of the function should be set.
a: A

An argument to be passed to the function referenced in the function argument.
b: B

An argument to be passed to the function referenced in the function argument.
c: C

An argument to be passed to the function referenced in the function argument.

Returns function

- (t: T, u: U, v: V, w: W, x: X): TReturn
- Parameters
  - t: T
  - u: U
  - v: V
  - w: W
  - x: X
  Returns TReturn

Takes a function and returns a new one that will always have a particular context.

see

since

1.4

since

1.6

deprecated

Deprecated since 3.3. Use `{@link Function#bind }`.

example

````Change the context of functions bound to a click handler using the "function, context" signature. Unbind the first handler after first click.

<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery.proxy demo</title>
<script src="https://code.jquery.com/jquery-3.3.1.js"></script>
</head>
<body>

<p><button type="button" id="test">Test</button></p>
<div id="log"></div>

<script>
var me = {
type: "zombie",
test: function( event ) {
// Without proxy, `this` would refer to the event target
// use event.target to reference that element.
var element = event.target;
$( element ).css( "background-color", "red" );

// With proxy, `this` refers to the me object encapsulating
// this function.
$( "#log" ).append( "Hello " + this.type + "<br>" );
$( "#test" ).off( "click", this.test );
}
};

var you = {
type: "person",
test: function( event ) {
$( "#log" ).append( this.type + " " );
}
};

// Execute you.test() in the context of the `you` object
// no matter where it is called
// i.e. the `this` keyword will refer to `you`
var youClick = $.proxy( you.test, you );

// attach click handlers to #test
$( "#test" )
// this === "zombie"; handler unbound after first click
.on( "click", $.proxy( me.test, me ) )

// this === "person"
.on( "click", youClick )

// this === "zombie"
.on( "click", $.proxy( you.test, me ) )

// this === "<button> element"
.on( "click", you.test );
</script>

</body>
</html>

example

````Change the context of a function bound to the click handler,

<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery.proxy demo</title>
<script src="https://code.jquery.com/jquery-3.3.1.js"></script>
</head>
<body>

<p><button type="button" id="test">Test</button></p>
<div id="log"></div>

<script>
var me = {
// I'm a dog
type: "dog",

// Note that event comes *after* one and two
test: function( one, two, event ) {
$( "#log" )

// `one` maps to `you`, the 1st additional
// argument in the $.proxy function call
.append( "<h3>Hello " + one.type + ":</h3>" )

// The `this` keyword refers to `me`
// (the 2nd, context, argument of $.proxy)
.append( "I am a " + this.type + ", " )

// `two` maps to `they`, the 2nd additional
// argument in the $.proxy function call
.append( "and they are " + two.type + ".<br>" )

// The event type is "click"
.append( "Thanks for " + event.type + "ing." )

// The clicked element is `event.target`,
// and its type is "button"
.append( "the " + event.target.type + "." );
}
};

var you = { type: "cat" };
var they = { type: "fish" };

// Set up handler to execute me.test() in the context
// of `me`, with `you` and `they` as additional arguments
var proxy = $.proxy( me.test, me, you, they );

$( "#test" )
.on( "click", proxy );
</script>

</body>
</html>

Type parameters

TContext
TReturn
A
B
T
U
V
W
X

Parameters

funсtion: function

The function whose context will be changed.
- - (this: TContext, a: A, b: B, t: T, u: U, v: V, w: W, x: X): TReturn
  - Parameters
    - this: TContext
    - a: A
    - b: B
    - t: T
    - u: U
    - v: V
    - w: W
    - x: X
    Returns TReturn
context: TContext

The object to which the context (this) of the function should be set.
a: A

An argument to be passed to the function referenced in the function argument.
b: B

An argument to be passed to the function referenced in the function argument.

Returns function

- (t: T, u: U, v: V, w: W, x: X): TReturn
- Parameters
  - t: T
  - u: U
  - v: V
  - w: W
  - x: X
  Returns TReturn

Takes a function and returns a new one that will always have a particular context.

see

since

1.4

since

1.6

deprecated

Deprecated since 3.3. Use `{@link Function#bind }`.

example

````Change the context of functions bound to a click handler using the "function, context" signature. Unbind the first handler after first click.

<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery.proxy demo</title>
<script src="https://code.jquery.com/jquery-3.3.1.js"></script>
</head>
<body>

<p><button type="button" id="test">Test</button></p>
<div id="log"></div>

<script>
var me = {
type: "zombie",
test: function( event ) {
// Without proxy, `this` would refer to the event target
// use event.target to reference that element.
var element = event.target;
$( element ).css( "background-color", "red" );

// With proxy, `this` refers to the me object encapsulating
// this function.
$( "#log" ).append( "Hello " + this.type + "<br>" );
$( "#test" ).off( "click", this.test );
}
};

var you = {
type: "person",
test: function( event ) {
$( "#log" ).append( this.type + " " );
}
};

// Execute you.test() in the context of the `you` object
// no matter where it is called
// i.e. the `this` keyword will refer to `you`
var youClick = $.proxy( you.test, you );

// attach click handlers to #test
$( "#test" )
// this === "zombie"; handler unbound after first click
.on( "click", $.proxy( me.test, me ) )

// this === "person"
.on( "click", youClick )

// this === "zombie"
.on( "click", $.proxy( you.test, me ) )

// this === "<button> element"
.on( "click", you.test );
</script>

</body>
</html>

example

````Change the context of a function bound to the click handler,

<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery.proxy demo</title>
<script src="https://code.jquery.com/jquery-3.3.1.js"></script>
</head>
<body>

<p><button type="button" id="test">Test</button></p>
<div id="log"></div>

<script>
var me = {
// I'm a dog
type: "dog",

// Note that event comes *after* one and two
test: function( one, two, event ) {
$( "#log" )

// `one` maps to `you`, the 1st additional
// argument in the $.proxy function call
.append( "<h3>Hello " + one.type + ":</h3>" )

// The `this` keyword refers to `me`
// (the 2nd, context, argument of $.proxy)
.append( "I am a " + this.type + ", " )

// `two` maps to `they`, the 2nd additional
// argument in the $.proxy function call
.append( "and they are " + two.type + ".<br>" )

// The event type is "click"
.append( "Thanks for " + event.type + "ing." )

// The clicked element is `event.target`,
// and its type is "button"
.append( "the " + event.target.type + "." );
}
};

var you = { type: "cat" };
var they = { type: "fish" };

// Set up handler to execute me.test() in the context
// of `me`, with `you` and `they` as additional arguments
var proxy = $.proxy( me.test, me, you, they );

$( "#test" )
.on( "click", proxy );
</script>

</body>
</html>

Type parameters

TContext
TReturn
A
T
U
V
W
X

Parameters

funсtion: function

The function whose context will be changed.
- - (this: TContext, a: A, t: T, u: U, v: V, w: W, x: X): TReturn
  - Parameters
    - this: TContext
    - a: A
    - t: T
    - u: U
    - v: V
    - w: W
    - x: X
    Returns TReturn
context: TContext

The object to which the context (this) of the function should be set.
a: A

An argument to be passed to the function referenced in the function argument.

Returns function

- (t: T, u: U, v: V, w: W, x: X): TReturn
- Parameters
  - t: T
  - u: U
  - v: V
  - w: W
  - x: X
  Returns TReturn

Takes a function and returns a new one that will always have a particular context.

see

since

1.4

since

1.6

deprecated

Deprecated since 3.3. Use `{@link Function#bind }`.

example

````Change the context of functions bound to a click handler using the "function, context" signature. Unbind the first handler after first click.

<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery.proxy demo</title>
<script src="https://code.jquery.com/jquery-3.3.1.js"></script>
</head>
<body>

<p><button type="button" id="test">Test</button></p>
<div id="log"></div>

<script>
var me = {
type: "zombie",
test: function( event ) {
// Without proxy, `this` would refer to the event target
// use event.target to reference that element.
var element = event.target;
$( element ).css( "background-color", "red" );

// With proxy, `this` refers to the me object encapsulating
// this function.
$( "#log" ).append( "Hello " + this.type + "<br>" );
$( "#test" ).off( "click", this.test );
}
};

var you = {
type: "person",
test: function( event ) {
$( "#log" ).append( this.type + " " );
}
};

// Execute you.test() in the context of the `you` object
// no matter where it is called
// i.e. the `this` keyword will refer to `you`
var youClick = $.proxy( you.test, you );

// attach click handlers to #test
$( "#test" )
// this === "zombie"; handler unbound after first click
.on( "click", $.proxy( me.test, me ) )

// this === "person"
.on( "click", youClick )

// this === "zombie"
.on( "click", $.proxy( you.test, me ) )

// this === "<button> element"
.on( "click", you.test );
</script>

</body>
</html>

example

````Change the context of a function bound to the click handler,

<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery.proxy demo</title>
<script src="https://code.jquery.com/jquery-3.3.1.js"></script>
</head>
<body>

<p><button type="button" id="test">Test</button></p>
<div id="log"></div>

<script>
var me = {
// I'm a dog
type: "dog",

// Note that event comes *after* one and two
test: function( one, two, event ) {
$( "#log" )

// `one` maps to `you`, the 1st additional
// argument in the $.proxy function call
.append( "<h3>Hello " + one.type + ":</h3>" )

// The `this` keyword refers to `me`
// (the 2nd, context, argument of $.proxy)
.append( "I am a " + this.type + ", " )

// `two` maps to `they`, the 2nd additional
// argument in the $.proxy function call
.append( "and they are " + two.type + ".<br>" )

// The event type is "click"
.append( "Thanks for " + event.type + "ing." )

// The clicked element is `event.target`,
// and its type is "button"
.append( "the " + event.target.type + "." );
}
};

var you = { type: "cat" };
var they = { type: "fish" };

// Set up handler to execute me.test() in the context
// of `me`, with `you` and `they` as additional arguments
var proxy = $.proxy( me.test, me, you, they );

$( "#test" )
.on( "click", proxy );
</script>

</body>
</html>

Type parameters

TContext
TReturn
T
U
V
W
X

Parameters

funсtion: function

The function whose context will be changed.
- - (this: TContext, t: T, u: U, v: V, w: W, x: X): TReturn
  - Parameters
    - this: TContext
    - t: T
    - u: U
    - v: V
    - w: W
    - x: X
    Returns TReturn
context: TContext

The object to which the context (this) of the function should be set.

Returns function

- (t: T, u: U, v: V, w: W, x: X): TReturn
- Parameters
  - t: T
  - u: U
  - v: V
  - w: W
  - x: X
  Returns TReturn

Takes a function and returns a new one that will always have a particular context.

see

since

1.4

since

1.6

deprecated

Deprecated since 3.3. Use `{@link Function#bind }`.

example

````Change the context of functions bound to a click handler using the "function, context" signature. Unbind the first handler after first click.

<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery.proxy demo</title>
<script src="https://code.jquery.com/jquery-3.3.1.js"></script>
</head>
<body>

<p><button type="button" id="test">Test</button></p>
<div id="log"></div>

<script>
var me = {
type: "zombie",
test: function( event ) {
// Without proxy, `this` would refer to the event target
// use event.target to reference that element.
var element = event.target;
$( element ).css( "background-color", "red" );

// With proxy, `this` refers to the me object encapsulating
// this function.
$( "#log" ).append( "Hello " + this.type + "<br>" );
$( "#test" ).off( "click", this.test );
}
};

var you = {
type: "person",
test: function( event ) {
$( "#log" ).append( this.type + " " );
}
};

// Execute you.test() in the context of the `you` object
// no matter where it is called
// i.e. the `this` keyword will refer to `you`
var youClick = $.proxy( you.test, you );

// attach click handlers to #test
$( "#test" )
// this === "zombie"; handler unbound after first click
.on( "click", $.proxy( me.test, me ) )

// this === "person"
.on( "click", youClick )

// this === "zombie"
.on( "click", $.proxy( you.test, me ) )

// this === "<button> element"
.on( "click", you.test );
</script>

</body>
</html>

example

````Change the context of a function bound to the click handler,

<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery.proxy demo</title>
<script src="https://code.jquery.com/jquery-3.3.1.js"></script>
</head>
<body>

<p><button type="button" id="test">Test</button></p>
<div id="log"></div>

<script>
var me = {
// I'm a dog
type: "dog",

// Note that event comes *after* one and two
test: function( one, two, event ) {
$( "#log" )

// `one` maps to `you`, the 1st additional
// argument in the $.proxy function call
.append( "<h3>Hello " + one.type + ":</h3>" )

// The `this` keyword refers to `me`
// (the 2nd, context, argument of $.proxy)
.append( "I am a " + this.type + ", " )

// `two` maps to `they`, the 2nd additional
// argument in the $.proxy function call
.append( "and they are " + two.type + ".<br>" )

// The event type is "click"
.append( "Thanks for " + event.type + "ing." )

// The clicked element is `event.target`,
// and its type is "button"
.append( "the " + event.target.type + "." );
}
};

var you = { type: "cat" };
var they = { type: "fish" };

// Set up handler to execute me.test() in the context
// of `me`, with `you` and `they` as additional arguments
var proxy = $.proxy( me.test, me, you, they );

$( "#test" )
.on( "click", proxy );
</script>

</body>
</html>

Type parameters

TContext
TReturn
A
B
C
D
E
F
G
T
U
V
W
X
Y

Parameters

funсtion: function

The function whose context will be changed.
- - (this: TContext, a: A, b: B, c: C, d: D, e: E, f: F, g: G, t: T, u: U, v: V, w: W, x: X, y: Y): TReturn
  - Parameters
    - this: TContext
    - a: A
    - b: B
    - c: C
    - d: D
    - e: E
    - f: F
    - g: G
    - t: T
    - u: U
    - v: V
    - w: W
    - x: X
    - y: Y
    Returns TReturn
context: TContext

The object to which the context (this) of the function should be set.
a: A

An argument to be passed to the function referenced in the function argument.
b: B

An argument to be passed to the function referenced in the function argument.
c: C

An argument to be passed to the function referenced in the function argument.
d: D

An argument to be passed to the function referenced in the function argument.
e: E

An argument to be passed to the function referenced in the function argument.
f: F

An argument to be passed to the function referenced in the function argument.
g: G

An argument to be passed to the function referenced in the function argument.

Returns function

- (t: T, u: U, v: V, w: W, x: X, y: Y): TReturn
- Parameters
  - t: T
  - u: U
  - v: V
  - w: W
  - x: X
  - y: Y
  Returns TReturn

Takes a function and returns a new one that will always have a particular context.

see

since

1.4

since

1.6

deprecated

Deprecated since 3.3. Use `{@link Function#bind }`.

example

````Change the context of functions bound to a click handler using the "function, context" signature. Unbind the first handler after first click.

<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery.proxy demo</title>
<script src="https://code.jquery.com/jquery-3.3.1.js"></script>
</head>
<body>

<p><button type="button" id="test">Test</button></p>
<div id="log"></div>

<script>
var me = {
type: "zombie",
test: function( event ) {
// Without proxy, `this` would refer to the event target
// use event.target to reference that element.
var element = event.target;
$( element ).css( "background-color", "red" );

// With proxy, `this` refers to the me object encapsulating
// this function.
$( "#log" ).append( "Hello " + this.type + "<br>" );
$( "#test" ).off( "click", this.test );
}
};

var you = {
type: "person",
test: function( event ) {
$( "#log" ).append( this.type + " " );
}
};

// Execute you.test() in the context of the `you` object
// no matter where it is called
// i.e. the `this` keyword will refer to `you`
var youClick = $.proxy( you.test, you );

// attach click handlers to #test
$( "#test" )
// this === "zombie"; handler unbound after first click
.on( "click", $.proxy( me.test, me ) )

// this === "person"
.on( "click", youClick )

// this === "zombie"
.on( "click", $.proxy( you.test, me ) )

// this === "<button> element"
.on( "click", you.test );
</script>

</body>
</html>

example

````Change the context of a function bound to the click handler,

<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery.proxy demo</title>
<script src="https://code.jquery.com/jquery-3.3.1.js"></script>
</head>
<body>

<p><button type="button" id="test">Test</button></p>
<div id="log"></div>

<script>
var me = {
// I'm a dog
type: "dog",

// Note that event comes *after* one and two
test: function( one, two, event ) {
$( "#log" )

// `one` maps to `you`, the 1st additional
// argument in the $.proxy function call
.append( "<h3>Hello " + one.type + ":</h3>" )

// The `this` keyword refers to `me`
// (the 2nd, context, argument of $.proxy)
.append( "I am a " + this.type + ", " )

// `two` maps to `they`, the 2nd additional
// argument in the $.proxy function call
.append( "and they are " + two.type + ".<br>" )

// The event type is "click"
.append( "Thanks for " + event.type + "ing." )

// The clicked element is `event.target`,
// and its type is "button"
.append( "the " + event.target.type + "." );
}
};

var you = { type: "cat" };
var they = { type: "fish" };

// Set up handler to execute me.test() in the context
// of `me`, with `you` and `they` as additional arguments
var proxy = $.proxy( me.test, me, you, they );

$( "#test" )
.on( "click", proxy );
</script>

</body>
</html>

Type parameters

TContext
TReturn
A
B
C
D
E
F
T
U
V
W
X
Y

Parameters

funсtion: function

The function whose context will be changed.
- - (this: TContext, a: A, b: B, c: C, d: D, e: E, f: F, t: T, u: U, v: V, w: W, x: X, y: Y): TReturn
  - Parameters
    - this: TContext
    - a: A
    - b: B
    - c: C
    - d: D
    - e: E
    - f: F
    - t: T
    - u: U
    - v: V
    - w: W
    - x: X
    - y: Y
    Returns TReturn
context: TContext

The object to which the context (this) of the function should be set.
a: A

An argument to be passed to the function referenced in the function argument.
b: B

An argument to be passed to the function referenced in the function argument.
c: C

An argument to be passed to the function referenced in the function argument.
d: D

An argument to be passed to the function referenced in the function argument.
e: E

An argument to be passed to the function referenced in the function argument.
f: F

An argument to be passed to the function referenced in the function argument.

Returns function

- (t: T, u: U, v: V, w: W, x: X, y: Y): TReturn
- Parameters
  - t: T
  - u: U
  - v: V
  - w: W
  - x: X
  - y: Y
  Returns TReturn

Takes a function and returns a new one that will always have a particular context.

see

since

1.4

since

1.6

deprecated

Deprecated since 3.3. Use `{@link Function#bind }`.

example

````Change the context of functions bound to a click handler using the "function, context" signature. Unbind the first handler after first click.

<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery.proxy demo</title>
<script src="https://code.jquery.com/jquery-3.3.1.js"></script>
</head>
<body>

<p><button type="button" id="test">Test</button></p>
<div id="log"></div>

<script>
var me = {
type: "zombie",
test: function( event ) {
// Without proxy, `this` would refer to the event target
// use event.target to reference that element.
var element = event.target;
$( element ).css( "background-color", "red" );

// With proxy, `this` refers to the me object encapsulating
// this function.
$( "#log" ).append( "Hello " + this.type + "<br>" );
$( "#test" ).off( "click", this.test );
}
};

var you = {
type: "person",
test: function( event ) {
$( "#log" ).append( this.type + " " );
}
};

// Execute you.test() in the context of the `you` object
// no matter where it is called
// i.e. the `this` keyword will refer to `you`
var youClick = $.proxy( you.test, you );

// attach click handlers to #test
$( "#test" )
// this === "zombie"; handler unbound after first click
.on( "click", $.proxy( me.test, me ) )

// this === "person"
.on( "click", youClick )

// this === "zombie"
.on( "click", $.proxy( you.test, me ) )

// this === "<button> element"
.on( "click", you.test );
</script>

</body>
</html>

example

````Change the context of a function bound to the click handler,

<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery.proxy demo</title>
<script src="https://code.jquery.com/jquery-3.3.1.js"></script>
</head>
<body>

<p><button type="button" id="test">Test</button></p>
<div id="log"></div>

<script>
var me = {
// I'm a dog
type: "dog",

// Note that event comes *after* one and two
test: function( one, two, event ) {
$( "#log" )

// `one` maps to `you`, the 1st additional
// argument in the $.proxy function call
.append( "<h3>Hello " + one.type + ":</h3>" )

// The `this` keyword refers to `me`
// (the 2nd, context, argument of $.proxy)
.append( "I am a " + this.type + ", " )

// `two` maps to `they`, the 2nd additional
// argument in the $.proxy function call
.append( "and they are " + two.type + ".<br>" )

// The event type is "click"
.append( "Thanks for " + event.type + "ing." )

// The clicked element is `event.target`,
// and its type is "button"
.append( "the " + event.target.type + "." );
}
};

var you = { type: "cat" };
var they = { type: "fish" };

// Set up handler to execute me.test() in the context
// of `me`, with `you` and `they` as additional arguments
var proxy = $.proxy( me.test, me, you, they );

$( "#test" )
.on( "click", proxy );
</script>

</body>
</html>

Type parameters

TContext
TReturn
A
B
C
D
E
T
U
V
W
X
Y

Parameters

funсtion: function

The function whose context will be changed.
- - (this: TContext, a: A, b: B, c: C, d: D, e: E, t: T, u: U, v: V, w: W, x: X, y: Y): TReturn
  - Parameters
    - this: TContext
    - a: A
    - b: B
    - c: C
    - d: D
    - e: E
    - t: T
    - u: U
    - v: V
    - w: W
    - x: X
    - y: Y
    Returns TReturn
context: TContext

The object to which the context (this) of the function should be set.
a: A

An argument to be passed to the function referenced in the function argument.
b: B

An argument to be passed to the function referenced in the function argument.
c: C

An argument to be passed to the function referenced in the function argument.
d: D

An argument to be passed to the function referenced in the function argument.
e: E

An argument to be passed to the function referenced in the function argument.

Returns function

- (t: T, u: U, v: V, w: W, x: X, y: Y): TReturn
- Parameters
  - t: T
  - u: U
  - v: V
  - w: W
  - x: X
  - y: Y
  Returns TReturn

Takes a function and returns a new one that will always have a particular context.

see

since

1.4

since

1.6

deprecated

Deprecated since 3.3. Use `{@link Function#bind }`.

example

````Change the context of functions bound to a click handler using the "function, context" signature. Unbind the first handler after first click.

<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery.proxy demo</title>
<script src="https://code.jquery.com/jquery-3.3.1.js"></script>
</head>
<body>

<p><button type="button" id="test">Test</button></p>
<div id="log"></div>

<script>
var me = {
type: "zombie",
test: function( event ) {
// Without proxy, `this` would refer to the event target
// use event.target to reference that element.
var element = event.target;
$( element ).css( "background-color", "red" );

// With proxy, `this` refers to the me object encapsulating
// this function.
$( "#log" ).append( "Hello " + this.type + "<br>" );
$( "#test" ).off( "click", this.test );
}
};

var you = {
type: "person",
test: function( event ) {
$( "#log" ).append( this.type + " " );
}
};

// Execute you.test() in the context of the `you` object
// no matter where it is called
// i.e. the `this` keyword will refer to `you`
var youClick = $.proxy( you.test, you );

// attach click handlers to #test
$( "#test" )
// this === "zombie"; handler unbound after first click
.on( "click", $.proxy( me.test, me ) )

// this === "person"
.on( "click", youClick )

// this === "zombie"
.on( "click", $.proxy( you.test, me ) )

// this === "<button> element"
.on( "click", you.test );
</script>

</body>
</html>

example

````Change the context of a function bound to the click handler,

<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery.proxy demo</title>
<script src="https://code.jquery.com/jquery-3.3.1.js"></script>
</head>
<body>

<p><button type="button" id="test">Test</button></p>
<div id="log"></div>

<script>
var me = {
// I'm a dog
type: "dog",

// Note that event comes *after* one and two
test: function( one, two, event ) {
$( "#log" )

// `one` maps to `you`, the 1st additional
// argument in the $.proxy function call
.append( "<h3>Hello " + one.type + ":</h3>" )

// The `this` keyword refers to `me`
// (the 2nd, context, argument of $.proxy)
.append( "I am a " + this.type + ", " )

// `two` maps to `they`, the 2nd additional
// argument in the $.proxy function call
.append( "and they are " + two.type + ".<br>" )

// The event type is "click"
.append( "Thanks for " + event.type + "ing." )

// The clicked element is `event.target`,
// and its type is "button"
.append( "the " + event.target.type + "." );
}
};

var you = { type: "cat" };
var they = { type: "fish" };

// Set up handler to execute me.test() in the context
// of `me`, with `you` and `they` as additional arguments
var proxy = $.proxy( me.test, me, you, they );

$( "#test" )
.on( "click", proxy );
</script>

</body>
</html>

Type parameters

TContext
TReturn
A
B
C
D
T
U
V
W
X
Y

Parameters

funсtion: function

The function whose context will be changed.
- - (this: TContext, a: A, b: B, c: C, d: D, t: T, u: U, v: V, w: W, x: X, y: Y): TReturn
  - Parameters
    - this: TContext
    - a: A
    - b: B
    - c: C
    - d: D
    - t: T
    - u: U
    - v: V
    - w: W
    - x: X
    - y: Y
    Returns TReturn
context: TContext

The object to which the context (this) of the function should be set.
a: A

An argument to be passed to the function referenced in the function argument.
b: B

An argument to be passed to the function referenced in the function argument.
c: C

An argument to be passed to the function referenced in the function argument.
d: D

An argument to be passed to the function referenced in the function argument.

Returns function

- (t: T, u: U, v: V, w: W, x: X, y: Y): TReturn
- Parameters
  - t: T
  - u: U
  - v: V
  - w: W
  - x: X
  - y: Y
  Returns TReturn

Takes a function and returns a new one that will always have a particular context.

see

since

1.4

since

1.6

deprecated

Deprecated since 3.3. Use `{@link Function#bind }`.

example

````Change the context of functions bound to a click handler using the "function, context" signature. Unbind the first handler after first click.

<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery.proxy demo</title>
<script src="https://code.jquery.com/jquery-3.3.1.js"></script>
</head>
<body>

<p><button type="button" id="test">Test</button></p>
<div id="log"></div>

<script>
var me = {
type: "zombie",
test: function( event ) {
// Without proxy, `this` would refer to the event target
// use event.target to reference that element.
var element = event.target;
$( element ).css( "background-color", "red" );

// With proxy, `this` refers to the me object encapsulating
// this function.
$( "#log" ).append( "Hello " + this.type + "<br>" );
$( "#test" ).off( "click", this.test );
}
};

var you = {
type: "person",
test: function( event ) {
$( "#log" ).append( this.type + " " );
}
};

// Execute you.test() in the context of the `you` object
// no matter where it is called
// i.e. the `this` keyword will refer to `you`
var youClick = $.proxy( you.test, you );

// attach click handlers to #test
$( "#test" )
// this === "zombie"; handler unbound after first click
.on( "click", $.proxy( me.test, me ) )

// this === "person"
.on( "click", youClick )

// this === "zombie"
.on( "click", $.proxy( you.test, me ) )

// this === "<button> element"
.on( "click", you.test );
</script>

</body>
</html>

example

````Change the context of a function bound to the click handler,

<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery.proxy demo</title>
<script src="https://code.jquery.com/jquery-3.3.1.js"></script>
</head>
<body>

<p><button type="button" id="test">Test</button></p>
<div id="log"></div>

<script>
var me = {
// I'm a dog
type: "dog",

// Note that event comes *after* one and two
test: function( one, two, event ) {
$( "#log" )

// `one` maps to `you`, the 1st additional
// argument in the $.proxy function call
.append( "<h3>Hello " + one.type + ":</h3>" )

// The `this` keyword refers to `me`
// (the 2nd, context, argument of $.proxy)
.append( "I am a " + this.type + ", " )

// `two` maps to `they`, the 2nd additional
// argument in the $.proxy function call
.append( "and they are " + two.type + ".<br>" )

// The event type is "click"
.append( "Thanks for " + event.type + "ing." )

// The clicked element is `event.target`,
// and its type is "button"
.append( "the " + event.target.type + "." );
}
};

var you = { type: "cat" };
var they = { type: "fish" };

// Set up handler to execute me.test() in the context
// of `me`, with `you` and `they` as additional arguments
var proxy = $.proxy( me.test, me, you, they );

$( "#test" )
.on( "click", proxy );
</script>

</body>
</html>

Type parameters

TContext
TReturn
A
B
C
T
U
V
W
X
Y

Parameters

funсtion: function

The function whose context will be changed.
- - (this: TContext, a: A, b: B, c: C, t: T, u: U, v: V, w: W, x: X, y: Y): TReturn
  - Parameters
    - this: TContext
    - a: A
    - b: B
    - c: C
    - t: T
    - u: U
    - v: V
    - w: W
    - x: X
    - y: Y
    Returns TReturn
context: TContext

The object to which the context (this) of the function should be set.
a: A

An argument to be passed to the function referenced in the function argument.
b: B

An argument to be passed to the function referenced in the function argument.
c: C

An argument to be passed to the function referenced in the function argument.

Returns function

- (t: T, u: U, v: V, w: W, x: X, y: Y): TReturn
- Parameters
  - t: T
  - u: U
  - v: V
  - w: W
  - x: X
  - y: Y
  Returns TReturn

Takes a function and returns a new one that will always have a particular context.

see

since

1.4

since

1.6

deprecated

Deprecated since 3.3. Use `{@link Function#bind }`.

example

````Change the context of functions bound to a click handler using the "function, context" signature. Unbind the first handler after first click.

<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery.proxy demo</title>
<script src="https://code.jquery.com/jquery-3.3.1.js"></script>
</head>
<body>

<p><button type="button" id="test">Test</button></p>
<div id="log"></div>

<script>
var me = {
type: "zombie",
test: function( event ) {
// Without proxy, `this` would refer to the event target
// use event.target to reference that element.
var element = event.target;
$( element ).css( "background-color", "red" );

// With proxy, `this` refers to the me object encapsulating
// this function.
$( "#log" ).append( "Hello " + this.type + "<br>" );
$( "#test" ).off( "click", this.test );
}
};

var you = {
type: "person",
test: function( event ) {
$( "#log" ).append( this.type + " " );
}
};

// Execute you.test() in the context of the `you` object
// no matter where it is called
// i.e. the `this` keyword will refer to `you`
var youClick = $.proxy( you.test, you );

// attach click handlers to #test
$( "#test" )
// this === "zombie"; handler unbound after first click
.on( "click", $.proxy( me.test, me ) )

// this === "person"
.on( "click", youClick )

// this === "zombie"
.on( "click", $.proxy( you.test, me ) )

// this === "<button> element"
.on( "click", you.test );
</script>

</body>
</html>

example

````Change the context of a function bound to the click handler,

<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery.proxy demo</title>
<script src="https://code.jquery.com/jquery-3.3.1.js"></script>
</head>
<body>

<p><button type="button" id="test">Test</button></p>
<div id="log"></div>

<script>
var me = {
// I'm a dog
type: "dog",

// Note that event comes *after* one and two
test: function( one, two, event ) {
$( "#log" )

// `one` maps to `you`, the 1st additional
// argument in the $.proxy function call
.append( "<h3>Hello " + one.type + ":</h3>" )

// The `this` keyword refers to `me`
// (the 2nd, context, argument of $.proxy)
.append( "I am a " + this.type + ", " )

// `two` maps to `they`, the 2nd additional
// argument in the $.proxy function call
.append( "and they are " + two.type + ".<br>" )

// The event type is "click"
.append( "Thanks for " + event.type + "ing." )

// The clicked element is `event.target`,
// and its type is "button"
.append( "the " + event.target.type + "." );
}
};

var you = { type: "cat" };
var they = { type: "fish" };

// Set up handler to execute me.test() in the context
// of `me`, with `you` and `they` as additional arguments
var proxy = $.proxy( me.test, me, you, they );

$( "#test" )
.on( "click", proxy );
</script>

</body>
</html>

Type parameters

TContext
TReturn
A
B
T
U
V
W
X
Y

Parameters

funсtion: function

The function whose context will be changed.
- - (this: TContext, a: A, b: B, t: T, u: U, v: V, w: W, x: X, y: Y): TReturn
  - Parameters
    - this: TContext
    - a: A
    - b: B
    - t: T
    - u: U
    - v: V
    - w: W
    - x: X
    - y: Y
    Returns TReturn
context: TContext

The object to which the context (this) of the function should be set.
a: A

An argument to be passed to the function referenced in the function argument.
b: B

An argument to be passed to the function referenced in the function argument.

Returns function

- (t: T, u: U, v: V, w: W, x: X, y: Y): TReturn
- Parameters
  - t: T
  - u: U
  - v: V
  - w: W
  - x: X
  - y: Y
  Returns TReturn

Takes a function and returns a new one that will always have a particular context.

see

since

1.4

since

1.6

deprecated

Deprecated since 3.3. Use `{@link Function#bind }`.

example

````Change the context of functions bound to a click handler using the "function, context" signature. Unbind the first handler after first click.

<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery.proxy demo</title>
<script src="https://code.jquery.com/jquery-3.3.1.js"></script>
</head>
<body>

<p><button type="button" id="test">Test</button></p>
<div id="log"></div>

<script>
var me = {
type: "zombie",
test: function( event ) {
// Without proxy, `this` would refer to the event target
// use event.target to reference that element.
var element = event.target;
$( element ).css( "background-color", "red" );

// With proxy, `this` refers to the me object encapsulating
// this function.
$( "#log" ).append( "Hello " + this.type + "<br>" );
$( "#test" ).off( "click", this.test );
}
};

var you = {
type: "person",
test: function( event ) {
$( "#log" ).append( this.type + " " );
}
};

// Execute you.test() in the context of the `you` object
// no matter where it is called
// i.e. the `this` keyword will refer to `you`
var youClick = $.proxy( you.test, you );

// attach click handlers to #test
$( "#test" )
// this === "zombie"; handler unbound after first click
.on( "click", $.proxy( me.test, me ) )

// this === "person"
.on( "click", youClick )

// this === "zombie"
.on( "click", $.proxy( you.test, me ) )

// this === "<button> element"
.on( "click", you.test );
</script>

</body>
</html>

example

````Change the context of a function bound to the click handler,

<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery.proxy demo</title>
<script src="https://code.jquery.com/jquery-3.3.1.js"></script>
</head>
<body>

<p><button type="button" id="test">Test</button></p>
<div id="log"></div>

<script>
var me = {
// I'm a dog
type: "dog",

// Note that event comes *after* one and two
test: function( one, two, event ) {
$( "#log" )

// `one` maps to `you`, the 1st additional
// argument in the $.proxy function call
.append( "<h3>Hello " + one.type + ":</h3>" )

// The `this` keyword refers to `me`
// (the 2nd, context, argument of $.proxy)
.append( "I am a " + this.type + ", " )

// `two` maps to `they`, the 2nd additional
// argument in the $.proxy function call
.append( "and they are " + two.type + ".<br>" )

// The event type is "click"
.append( "Thanks for " + event.type + "ing." )

// The clicked element is `event.target`,
// and its type is "button"
.append( "the " + event.target.type + "." );
}
};

var you = { type: "cat" };
var they = { type: "fish" };

// Set up handler to execute me.test() in the context
// of `me`, with `you` and `they` as additional arguments
var proxy = $.proxy( me.test, me, you, they );

$( "#test" )
.on( "click", proxy );
</script>

</body>
</html>

Type parameters

TContext
TReturn
A
T
U
V
W
X
Y

Parameters

funсtion: function

The function whose context will be changed.
- - (this: TContext, a: A, t: T, u: U, v: V, w: W, x: X, y: Y): TReturn
  - Parameters
    - this: TContext
    - a: A
    - t: T
    - u: U
    - v: V
    - w: W
    - x: X
    - y: Y
    Returns TReturn
context: TContext

The object to which the context (this) of the function should be set.
a: A

An argument to be passed to the function referenced in the function argument.

Returns function

- (t: T, u: U, v: V, w: W, x: X, y: Y): TReturn
- Parameters
  - t: T
  - u: U
  - v: V
  - w: W
  - x: X
  - y: Y
  Returns TReturn

Takes a function and returns a new one that will always have a particular context.

see

since

1.4

since

1.6

deprecated

Deprecated since 3.3. Use `{@link Function#bind }`.

example

````Change the context of functions bound to a click handler using the "function, context" signature. Unbind the first handler after first click.

<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery.proxy demo</title>
<script src="https://code.jquery.com/jquery-3.3.1.js"></script>
</head>
<body>

<p><button type="button" id="test">Test</button></p>
<div id="log"></div>

<script>
var me = {
type: "zombie",
test: function( event ) {
// Without proxy, `this` would refer to the event target
// use event.target to reference that element.
var element = event.target;
$( element ).css( "background-color", "red" );

// With proxy, `this` refers to the me object encapsulating
// this function.
$( "#log" ).append( "Hello " + this.type + "<br>" );
$( "#test" ).off( "click", this.test );
}
};

var you = {
type: "person",
test: function( event ) {
$( "#log" ).append( this.type + " " );
}
};

// Execute you.test() in the context of the `you` object
// no matter where it is called
// i.e. the `this` keyword will refer to `you`
var youClick = $.proxy( you.test, you );

// attach click handlers to #test
$( "#test" )
// this === "zombie"; handler unbound after first click
.on( "click", $.proxy( me.test, me ) )

// this === "person"
.on( "click", youClick )

// this === "zombie"
.on( "click", $.proxy( you.test, me ) )

// this === "<button> element"
.on( "click", you.test );
</script>

</body>
</html>

example

````Change the context of a function bound to the click handler,

<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery.proxy demo</title>
<script src="https://code.jquery.com/jquery-3.3.1.js"></script>
</head>
<body>

<p><button type="button" id="test">Test</button></p>
<div id="log"></div>

<script>
var me = {
// I'm a dog
type: "dog",

// Note that event comes *after* one and two
test: function( one, two, event ) {
$( "#log" )

// `one` maps to `you`, the 1st additional
// argument in the $.proxy function call
.append( "<h3>Hello " + one.type + ":</h3>" )

// The `this` keyword refers to `me`
// (the 2nd, context, argument of $.proxy)
.append( "I am a " + this.type + ", " )

// `two` maps to `they`, the 2nd additional
// argument in the $.proxy function call
.append( "and they are " + two.type + ".<br>" )

// The event type is "click"
.append( "Thanks for " + event.type + "ing." )

// The clicked element is `event.target`,
// and its type is "button"
.append( "the " + event.target.type + "." );
}
};

var you = { type: "cat" };
var they = { type: "fish" };

// Set up handler to execute me.test() in the context
// of `me`, with `you` and `they` as additional arguments
var proxy = $.proxy( me.test, me, you, they );

$( "#test" )
.on( "click", proxy );
</script>

</body>
</html>

Type parameters

TContext
TReturn
T
U
V
W
X
Y

Parameters

funсtion: function

The function whose context will be changed.
- - (this: TContext, t: T, u: U, v: V, w: W, x: X, y: Y): TReturn
  - Parameters
    - this: TContext
    - t: T
    - u: U
    - v: V
    - w: W
    - x: X
    - y: Y
    Returns TReturn
context: TContext

The object to which the context (this) of the function should be set.

Returns function

- (t: T, u: U, v: V, w: W, x: X, y: Y): TReturn
- Parameters
  - t: T
  - u: U
  - v: V
  - w: W
  - x: X
  - y: Y
  Returns TReturn

Takes a function and returns a new one that will always have a particular context.

see

since

1.4

since

1.6

deprecated

Deprecated since 3.3. Use `{@link Function#bind }`.

example

````Change the context of functions bound to a click handler using the "function, context" signature. Unbind the first handler after first click.

<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery.proxy demo</title>
<script src="https://code.jquery.com/jquery-3.3.1.js"></script>
</head>
<body>

<p><button type="button" id="test">Test</button></p>
<div id="log"></div>

<script>
var me = {
type: "zombie",
test: function( event ) {
// Without proxy, `this` would refer to the event target
// use event.target to reference that element.
var element = event.target;
$( element ).css( "background-color", "red" );

// With proxy, `this` refers to the me object encapsulating
// this function.
$( "#log" ).append( "Hello " + this.type + "<br>" );
$( "#test" ).off( "click", this.test );
}
};

var you = {
type: "person",
test: function( event ) {
$( "#log" ).append( this.type + " " );
}
};

// Execute you.test() in the context of the `you` object
// no matter where it is called
// i.e. the `this` keyword will refer to `you`
var youClick = $.proxy( you.test, you );

// attach click handlers to #test
$( "#test" )
// this === "zombie"; handler unbound after first click
.on( "click", $.proxy( me.test, me ) )

// this === "person"
.on( "click", youClick )

// this === "zombie"
.on( "click", $.proxy( you.test, me ) )

// this === "<button> element"
.on( "click", you.test );
</script>

</body>
</html>

example

````Change the context of a function bound to the click handler,

<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery.proxy demo</title>
<script src="https://code.jquery.com/jquery-3.3.1.js"></script>
</head>
<body>

<p><button type="button" id="test">Test</button></p>
<div id="log"></div>

<script>
var me = {
// I'm a dog
type: "dog",

// Note that event comes *after* one and two
test: function( one, two, event ) {
$( "#log" )

// `one` maps to `you`, the 1st additional
// argument in the $.proxy function call
.append( "<h3>Hello " + one.type + ":</h3>" )

// The `this` keyword refers to `me`
// (the 2nd, context, argument of $.proxy)
.append( "I am a " + this.type + ", " )

// `two` maps to `they`, the 2nd additional
// argument in the $.proxy function call
.append( "and they are " + two.type + ".<br>" )

// The event type is "click"
.append( "Thanks for " + event.type + "ing." )

// The clicked element is `event.target`,
// and its type is "button"
.append( "the " + event.target.type + "." );
}
};

var you = { type: "cat" };
var they = { type: "fish" };

// Set up handler to execute me.test() in the context
// of `me`, with `you` and `they` as additional arguments
var proxy = $.proxy( me.test, me, you, they );

$( "#test" )
.on( "click", proxy );
</script>

</body>
</html>

Type parameters

TContext
TReturn
A
B
C
D
E
F
G
T
U
V
W
X
Y
Z

Parameters

funсtion: function

The function whose context will be changed.
- - (this: TContext, a: A, b: B, c: C, d: D, e: E, f: F, g: G, t: T, u: U, v: V, w: W, x: X, y: Y, z: Z, ...args: any[]): TReturn
  - Parameters
    - this: TContext
    - a: A
    - b: B
    - c: C
    - d: D
    - e: E
    - f: F
    - g: G
    - t: T
    - u: U
    - v: V
    - w: W
    - x: X
    - y: Y
    - z: Z
    - Rest ...args: any[]
    Returns TReturn
context: TContext

The object to which the context (this) of the function should be set.
a: A

An argument to be passed to the function referenced in the function argument.
b: B

An argument to be passed to the function referenced in the function argument.
c: C

An argument to be passed to the function referenced in the function argument.
d: D

An argument to be passed to the function referenced in the function argument.
e: E

An argument to be passed to the function referenced in the function argument.
f: F

An argument to be passed to the function referenced in the function argument.
g: G

An argument to be passed to the function referenced in the function argument.

Returns function

- (t: T, u: U, v: V, w: W, x: X, y: Y, z: Z, ...args: any[]): TReturn
- Parameters
  - t: T
  - u: U
  - v: V
  - w: W
  - x: X
  - y: Y
  - z: Z
  - Rest ...args: any[]
  Returns TReturn

Takes a function and returns a new one that will always have a particular context.

see

since

1.4

since

1.6

deprecated

Deprecated since 3.3. Use `{@link Function#bind }`.

example

````Change the context of functions bound to a click handler using the "function, context" signature. Unbind the first handler after first click.

<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery.proxy demo</title>
<script src="https://code.jquery.com/jquery-3.3.1.js"></script>
</head>
<body>

<p><button type="button" id="test">Test</button></p>
<div id="log"></div>

<script>
var me = {
type: "zombie",
test: function( event ) {
// Without proxy, `this` would refer to the event target
// use event.target to reference that element.
var element = event.target;
$( element ).css( "background-color", "red" );

// With proxy, `this` refers to the me object encapsulating
// this function.
$( "#log" ).append( "Hello " + this.type + "<br>" );
$( "#test" ).off( "click", this.test );
}
};

var you = {
type: "person",
test: function( event ) {
$( "#log" ).append( this.type + " " );
}
};

// Execute you.test() in the context of the `you` object
// no matter where it is called
// i.e. the `this` keyword will refer to `you`
var youClick = $.proxy( you.test, you );

// attach click handlers to #test
$( "#test" )
// this === "zombie"; handler unbound after first click
.on( "click", $.proxy( me.test, me ) )

// this === "person"
.on( "click", youClick )

// this === "zombie"
.on( "click", $.proxy( you.test, me ) )

// this === "<button> element"
.on( "click", you.test );
</script>

</body>
</html>

example

````Change the context of a function bound to the click handler,

<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery.proxy demo</title>
<script src="https://code.jquery.com/jquery-3.3.1.js"></script>
</head>
<body>

<p><button type="button" id="test">Test</button></p>
<div id="log"></div>

<script>
var me = {
// I'm a dog
type: "dog",

// Note that event comes *after* one and two
test: function( one, two, event ) {
$( "#log" )

// `one` maps to `you`, the 1st additional
// argument in the $.proxy function call
.append( "<h3>Hello " + one.type + ":</h3>" )

// The `this` keyword refers to `me`
// (the 2nd, context, argument of $.proxy)
.append( "I am a " + this.type + ", " )

// `two` maps to `they`, the 2nd additional
// argument in the $.proxy function call
.append( "and they are " + two.type + ".<br>" )

// The event type is "click"
.append( "Thanks for " + event.type + "ing." )

// The clicked element is `event.target`,
// and its type is "button"
.append( "the " + event.target.type + "." );
}
};

var you = { type: "cat" };
var they = { type: "fish" };

// Set up handler to execute me.test() in the context
// of `me`, with `you` and `they` as additional arguments
var proxy = $.proxy( me.test, me, you, they );

$( "#test" )
.on( "click", proxy );
</script>

</body>
</html>

Type parameters

TContext
TReturn
A
B
C
D
E
F
T
U
V
W
X
Y
Z

Parameters

funсtion: function

The function whose context will be changed.
- - (this: TContext, a: A, b: B, c: C, d: D, e: E, f: F, t: T, u: U, v: V, w: W, x: X, y: Y, z: Z, ...args: any[]): TReturn
  - Parameters
    - this: TContext
    - a: A
    - b: B
    - c: C
    - d: D
    - e: E
    - f: F
    - t: T
    - u: U
    - v: V
    - w: W
    - x: X
    - y: Y
    - z: Z
    - Rest ...args: any[]
    Returns TReturn
context: TContext

The object to which the context (this) of the function should be set.
a: A

An argument to be passed to the function referenced in the function argument.
b: B

An argument to be passed to the function referenced in the function argument.
c: C

An argument to be passed to the function referenced in the function argument.
d: D

An argument to be passed to the function referenced in the function argument.
e: E

An argument to be passed to the function referenced in the function argument.
f: F

An argument to be passed to the function referenced in the function argument.

Returns function

- (t: T, u: U, v: V, w: W, x: X, y: Y, z: Z, ...args: any[]): TReturn
- Parameters
  - t: T
  - u: U
  - v: V
  - w: W
  - x: X
  - y: Y
  - z: Z
  - Rest ...args: any[]
  Returns TReturn

Takes a function and returns a new one that will always have a particular context.

see

since

1.4

since

1.6

deprecated

Deprecated since 3.3. Use `{@link Function#bind }`.

example

````Change the context of functions bound to a click handler using the "function, context" signature. Unbind the first handler after first click.

<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery.proxy demo</title>
<script src="https://code.jquery.com/jquery-3.3.1.js"></script>
</head>
<body>

<p><button type="button" id="test">Test</button></p>
<div id="log"></div>

<script>
var me = {
type: "zombie",
test: function( event ) {
// Without proxy, `this` would refer to the event target
// use event.target to reference that element.
var element = event.target;
$( element ).css( "background-color", "red" );

// With proxy, `this` refers to the me object encapsulating
// this function.
$( "#log" ).append( "Hello " + this.type + "<br>" );
$( "#test" ).off( "click", this.test );
}
};

var you = {
type: "person",
test: function( event ) {
$( "#log" ).append( this.type + " " );
}
};

// Execute you.test() in the context of the `you` object
// no matter where it is called
// i.e. the `this` keyword will refer to `you`
var youClick = $.proxy( you.test, you );

// attach click handlers to #test
$( "#test" )
// this === "zombie"; handler unbound after first click
.on( "click", $.proxy( me.test, me ) )

// this === "person"
.on( "click", youClick )

// this === "zombie"
.on( "click", $.proxy( you.test, me ) )

// this === "<button> element"
.on( "click", you.test );
</script>

</body>
</html>

example

````Change the context of a function bound to the click handler,

<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery.proxy demo</title>
<script src="https://code.jquery.com/jquery-3.3.1.js"></script>
</head>
<body>

<p><button type="button" id="test">Test</button></p>
<div id="log"></div>

<script>
var me = {
// I'm a dog
type: "dog",

// Note that event comes *after* one and two
test: function( one, two, event ) {
$( "#log" )

// `one` maps to `you`, the 1st additional
// argument in the $.proxy function call
.append( "<h3>Hello " + one.type + ":</h3>" )

// The `this` keyword refers to `me`
// (the 2nd, context, argument of $.proxy)
.append( "I am a " + this.type + ", " )

// `two` maps to `they`, the 2nd additional
// argument in the $.proxy function call
.append( "and they are " + two.type + ".<br>" )

// The event type is "click"
.append( "Thanks for " + event.type + "ing." )

// The clicked element is `event.target`,
// and its type is "button"
.append( "the " + event.target.type + "." );
}
};

var you = { type: "cat" };
var they = { type: "fish" };

// Set up handler to execute me.test() in the context
// of `me`, with `you` and `they` as additional arguments
var proxy = $.proxy( me.test, me, you, they );

$( "#test" )
.on( "click", proxy );
</script>

</body>
</html>

Type parameters

TContext
TReturn
A
B
C
D
E
T
U
V
W
X
Y
Z

Parameters

funсtion: function

The function whose context will be changed.
- - (this: TContext, a: A, b: B, c: C, d: D, e: E, t: T, u: U, v: V, w: W, x: X, y: Y, z: Z, ...args: any[]): TReturn
  - Parameters
    - this: TContext
    - a: A
    - b: B
    - c: C
    - d: D
    - e: E
    - t: T
    - u: U
    - v: V
    - w: W
    - x: X
    - y: Y
    - z: Z
    - Rest ...args: any[]
    Returns TReturn
context: TContext

The object to which the context (this) of the function should be set.
a: A

An argument to be passed to the function referenced in the function argument.
b: B

An argument to be passed to the function referenced in the function argument.
c: C

An argument to be passed to the function referenced in the function argument.
d: D

An argument to be passed to the function referenced in the function argument.
e: E

An argument to be passed to the function referenced in the function argument.

Returns function

- (t: T, u: U, v: V, w: W, x: X, y: Y, z: Z, ...args: any[]): TReturn
- Parameters
  - t: T
  - u: U
  - v: V
  - w: W
  - x: X
  - y: Y
  - z: Z
  - Rest ...args: any[]
  Returns TReturn

Takes a function and returns a new one that will always have a particular context.

see

since

1.4

since

1.6

deprecated

Deprecated since 3.3. Use `{@link Function#bind }`.

example

````Change the context of functions bound to a click handler using the "function, context" signature. Unbind the first handler after first click.

<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery.proxy demo</title>
<script src="https://code.jquery.com/jquery-3.3.1.js"></script>
</head>
<body>

<p><button type="button" id="test">Test</button></p>
<div id="log"></div>

<script>
var me = {
type: "zombie",
test: function( event ) {
// Without proxy, `this` would refer to the event target
// use event.target to reference that element.
var element = event.target;
$( element ).css( "background-color", "red" );

// With proxy, `this` refers to the me object encapsulating
// this function.
$( "#log" ).append( "Hello " + this.type + "<br>" );
$( "#test" ).off( "click", this.test );
}
};

var you = {
type: "person",
test: function( event ) {
$( "#log" ).append( this.type + " " );
}
};

// Execute you.test() in the context of the `you` object
// no matter where it is called
// i.e. the `this` keyword will refer to `you`
var youClick = $.proxy( you.test, you );

// attach click handlers to #test
$( "#test" )
// this === "zombie"; handler unbound after first click
.on( "click", $.proxy( me.test, me ) )

// this === "person"
.on( "click", youClick )

// this === "zombie"
.on( "click", $.proxy( you.test, me ) )

// this === "<button> element"
.on( "click", you.test );
</script>

</body>
</html>

example

````Change the context of a function bound to the click handler,

<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery.proxy demo</title>
<script src="https://code.jquery.com/jquery-3.3.1.js"></script>
</head>
<body>

<p><button type="button" id="test">Test</button></p>
<div id="log"></div>

<script>
var me = {
// I'm a dog
type: "dog",

// Note that event comes *after* one and two
test: function( one, two, event ) {
$( "#log" )

// `one` maps to `you`, the 1st additional
// argument in the $.proxy function call
.append( "<h3>Hello " + one.type + ":</h3>" )

// The `this` keyword refers to `me`
// (the 2nd, context, argument of $.proxy)
.append( "I am a " + this.type + ", " )

// `two` maps to `they`, the 2nd additional
// argument in the $.proxy function call
.append( "and they are " + two.type + ".<br>" )

// The event type is "click"
.append( "Thanks for " + event.type + "ing." )

// The clicked element is `event.target`,
// and its type is "button"
.append( "the " + event.target.type + "." );
}
};

var you = { type: "cat" };
var they = { type: "fish" };

// Set up handler to execute me.test() in the context
// of `me`, with `you` and `they` as additional arguments
var proxy = $.proxy( me.test, me, you, they );

$( "#test" )
.on( "click", proxy );
</script>

</body>
</html>

Type parameters

TContext
TReturn
A
B
C
D
T
U
V
W
X
Y
Z

Parameters

funсtion: function

The function whose context will be changed.
- - (this: TContext, a: A, b: B, c: C, d: D, t: T, u: U, v: V, w: W, x: X, y: Y, z: Z, ...args: any[]): TReturn
  - Parameters
    - this: TContext
    - a: A
    - b: B
    - c: C
    - d: D
    - t: T
    - u: U
    - v: V
    - w: W
    - x: X
    - y: Y
    - z: Z
    - Rest ...args: any[]
    Returns TReturn
context: TContext

The object to which the context (this) of the function should be set.
a: A

An argument to be passed to the function referenced in the function argument.
b: B

An argument to be passed to the function referenced in the function argument.
c: C

An argument to be passed to the function referenced in the function argument.
d: D

An argument to be passed to the function referenced in the function argument.

Returns function

- (t: T, u: U, v: V, w: W, x: X, y: Y, z: Z, ...args: any[]): TReturn
- Parameters
  - t: T
  - u: U
  - v: V
  - w: W
  - x: X
  - y: Y
  - z: Z
  - Rest ...args: any[]
  Returns TReturn

Takes a function and returns a new one that will always have a particular context.

see

since

1.4

since

1.6

deprecated

Deprecated since 3.3. Use `{@link Function#bind }`.

example

````Change the context of functions bound to a click handler using the "function, context" signature. Unbind the first handler after first click.

<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery.proxy demo</title>
<script src="https://code.jquery.com/jquery-3.3.1.js"></script>
</head>
<body>

<p><button type="button" id="test">Test</button></p>
<div id="log"></div>

<script>
var me = {
type: "zombie",
test: function( event ) {
// Without proxy, `this` would refer to the event target
// use event.target to reference that element.
var element = event.target;
$( element ).css( "background-color", "red" );

// With proxy, `this` refers to the me object encapsulating
// this function.
$( "#log" ).append( "Hello " + this.type + "<br>" );
$( "#test" ).off( "click", this.test );
}
};

var you = {
type: "person",
test: function( event ) {
$( "#log" ).append( this.type + " " );
}
};

// Execute you.test() in the context of the `you` object
// no matter where it is called
// i.e. the `this` keyword will refer to `you`
var youClick = $.proxy( you.test, you );

// attach click handlers to #test
$( "#test" )
// this === "zombie"; handler unbound after first click
.on( "click", $.proxy( me.test, me ) )

// this === "person"
.on( "click", youClick )

// this === "zombie"
.on( "click", $.proxy( you.test, me ) )

// this === "<button> element"
.on( "click", you.test );
</script>

</body>
</html>

example

````Change the context of a function bound to the click handler,

<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery.proxy demo</title>
<script src="https://code.jquery.com/jquery-3.3.1.js"></script>
</head>
<body>

<p><button type="button" id="test">Test</button></p>
<div id="log"></div>

<script>
var me = {
// I'm a dog
type: "dog",

// Note that event comes *after* one and two
test: function( one, two, event ) {
$( "#log" )

// `one` maps to `you`, the 1st additional
// argument in the $.proxy function call
.append( "<h3>Hello " + one.type + ":</h3>" )

// The `this` keyword refers to `me`
// (the 2nd, context, argument of $.proxy)
.append( "I am a " + this.type + ", " )

// `two` maps to `they`, the 2nd additional
// argument in the $.proxy function call
.append( "and they are " + two.type + ".<br>" )

// The event type is "click"
.append( "Thanks for " + event.type + "ing." )

// The clicked element is `event.target`,
// and its type is "button"
.append( "the " + event.target.type + "." );
}
};

var you = { type: "cat" };
var they = { type: "fish" };

// Set up handler to execute me.test() in the context
// of `me`, with `you` and `they` as additional arguments
var proxy = $.proxy( me.test, me, you, they );

$( "#test" )
.on( "click", proxy );
</script>

</body>
</html>

Type parameters

TContext
TReturn
A
B
C
T
U
V
W
X
Y
Z

Parameters

funсtion: function

The function whose context will be changed.
- - (this: TContext, a: A, b: B, c: C, t: T, u: U, v: V, w: W, x: X, y: Y, z: Z, ...args: any[]): TReturn
  - Parameters
    - this: TContext
    - a: A
    - b: B
    - c: C
    - t: T
    - u: U
    - v: V
    - w: W
    - x: X
    - y: Y
    - z: Z
    - Rest ...args: any[]
    Returns TReturn
context: TContext

The object to which the context (this) of the function should be set.
a: A

An argument to be passed to the function referenced in the function argument.
b: B

An argument to be passed to the function referenced in the function argument.
c: C

An argument to be passed to the function referenced in the function argument.

Returns function

- (t: T, u: U, v: V, w: W, x: X, y: Y, z: Z, ...args: any[]): TReturn
- Parameters
  - t: T
  - u: U
  - v: V
  - w: W
  - x: X
  - y: Y
  - z: Z
  - Rest ...args: any[]
  Returns TReturn

Takes a function and returns a new one that will always have a particular context.

see

since

1.4

since

1.6

deprecated

Deprecated since 3.3. Use `{@link Function#bind }`.

example

````Change the context of functions bound to a click handler using the "function, context" signature. Unbind the first handler after first click.

<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery.proxy demo</title>
<script src="https://code.jquery.com/jquery-3.3.1.js"></script>
</head>
<body>

<p><button type="button" id="test">Test</button></p>
<div id="log"></div>

<script>
var me = {
type: "zombie",
test: function( event ) {
// Without proxy, `this` would refer to the event target
// use event.target to reference that element.
var element = event.target;
$( element ).css( "background-color", "red" );

// With proxy, `this` refers to the me object encapsulating
// this function.
$( "#log" ).append( "Hello " + this.type + "<br>" );
$( "#test" ).off( "click", this.test );
}
};

var you = {
type: "person",
test: function( event ) {
$( "#log" ).append( this.type + " " );
}
};

// Execute you.test() in the context of the `you` object
// no matter where it is called
// i.e. the `this` keyword will refer to `you`
var youClick = $.proxy( you.test, you );

// attach click handlers to #test
$( "#test" )
// this === "zombie"; handler unbound after first click
.on( "click", $.proxy( me.test, me ) )

// this === "person"
.on( "click", youClick )

// this === "zombie"
.on( "click", $.proxy( you.test, me ) )

// this === "<button> element"
.on( "click", you.test );
</script>

</body>
</html>

example

````Change the context of a function bound to the click handler,

<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery.proxy demo</title>
<script src="https://code.jquery.com/jquery-3.3.1.js"></script>
</head>
<body>

<p><button type="button" id="test">Test</button></p>
<div id="log"></div>

<script>
var me = {
// I'm a dog
type: "dog",

// Note that event comes *after* one and two
test: function( one, two, event ) {
$( "#log" )

// `one` maps to `you`, the 1st additional
// argument in the $.proxy function call
.append( "<h3>Hello " + one.type + ":</h3>" )

// The `this` keyword refers to `me`
// (the 2nd, context, argument of $.proxy)
.append( "I am a " + this.type + ", " )

// `two` maps to `they`, the 2nd additional
// argument in the $.proxy function call
.append( "and they are " + two.type + ".<br>" )

// The event type is "click"
.append( "Thanks for " + event.type + "ing." )

// The clicked element is `event.target`,
// and its type is "button"
.append( "the " + event.target.type + "." );
}
};

var you = { type: "cat" };
var they = { type: "fish" };

// Set up handler to execute me.test() in the context
// of `me`, with `you` and `they` as additional arguments
var proxy = $.proxy( me.test, me, you, they );

$( "#test" )
.on( "click", proxy );
</script>

</body>
</html>

Type parameters

TContext
TReturn
A
B
T
U
V
W
X
Y
Z

Parameters

funсtion: function

The function whose context will be changed.
- - (this: TContext, a: A, b: B, t: T, u: U, v: V, w: W, x: X, y: Y, z: Z, ...args: any[]): TReturn
  - Parameters
    - this: TContext
    - a: A
    - b: B
    - t: T
    - u: U
    - v: V
    - w: W
    - x: X
    - y: Y
    - z: Z
    - Rest ...args: any[]
    Returns TReturn
context: TContext

The object to which the context (this) of the function should be set.
a: A

An argument to be passed to the function referenced in the function argument.
b: B

An argument to be passed to the function referenced in the function argument.

Returns function

- (t: T, u: U, v: V, w: W, x: X, y: Y, z: Z, ...args: any[]): TReturn
- Parameters
  - t: T
  - u: U
  - v: V
  - w: W
  - x: X
  - y: Y
  - z: Z
  - Rest ...args: any[]
  Returns TReturn

Takes a function and returns a new one that will always have a particular context.

see

since

1.4

since

1.6

deprecated

Deprecated since 3.3. Use `{@link Function#bind }`.

example

````Change the context of functions bound to a click handler using the "function, context" signature. Unbind the first handler after first click.

<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery.proxy demo</title>
<script src="https://code.jquery.com/jquery-3.3.1.js"></script>
</head>
<body>

<p><button type="button" id="test">Test</button></p>
<div id="log"></div>

<script>
var me = {
type: "zombie",
test: function( event ) {
// Without proxy, `this` would refer to the event target
// use event.target to reference that element.
var element = event.target;
$( element ).css( "background-color", "red" );

// With proxy, `this` refers to the me object encapsulating
// this function.
$( "#log" ).append( "Hello " + this.type + "<br>" );
$( "#test" ).off( "click", this.test );
}
};

var you = {
type: "person",
test: function( event ) {
$( "#log" ).append( this.type + " " );
}
};

// Execute you.test() in the context of the `you` object
// no matter where it is called
// i.e. the `this` keyword will refer to `you`
var youClick = $.proxy( you.test, you );

// attach click handlers to #test
$( "#test" )
// this === "zombie"; handler unbound after first click
.on( "click", $.proxy( me.test, me ) )

// this === "person"
.on( "click", youClick )

// this === "zombie"
.on( "click", $.proxy( you.test, me ) )

// this === "<button> element"
.on( "click", you.test );
</script>

</body>
</html>

example

````Change the context of a function bound to the click handler,

<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery.proxy demo</title>
<script src="https://code.jquery.com/jquery-3.3.1.js"></script>
</head>
<body>

<p><button type="button" id="test">Test</button></p>
<div id="log"></div>

<script>
var me = {
// I'm a dog
type: "dog",

// Note that event comes *after* one and two
test: function( one, two, event ) {
$( "#log" )

// `one` maps to `you`, the 1st additional
// argument in the $.proxy function call
.append( "<h3>Hello " + one.type + ":</h3>" )

// The `this` keyword refers to `me`
// (the 2nd, context, argument of $.proxy)
.append( "I am a " + this.type + ", " )

// `two` maps to `they`, the 2nd additional
// argument in the $.proxy function call
.append( "and they are " + two.type + ".<br>" )

// The event type is "click"
.append( "Thanks for " + event.type + "ing." )

// The clicked element is `event.target`,
// and its type is "button"
.append( "the " + event.target.type + "." );
}
};

var you = { type: "cat" };
var they = { type: "fish" };

// Set up handler to execute me.test() in the context
// of `me`, with `you` and `they` as additional arguments
var proxy = $.proxy( me.test, me, you, they );

$( "#test" )
.on( "click", proxy );
</script>

</body>
</html>

Type parameters

TContext
TReturn
A
T
U
V
W
X
Y
Z

Parameters

funсtion: function

The function whose context will be changed.
- - (this: TContext, a: A, t: T, u: U, v: V, w: W, x: X, y: Y, z: Z, ...args: any[]): TReturn
  - Parameters
    - this: TContext
    - a: A
    - t: T
    - u: U
    - v: V
    - w: W
    - x: X
    - y: Y
    - z: Z
    - Rest ...args: any[]
    Returns TReturn
context: TContext

The object to which the context (this) of the function should be set.
a: A

An argument to be passed to the function referenced in the function argument.

Returns function

- (t: T, u: U, v: V, w: W, x: X, y: Y, z: Z, ...args: any[]): TReturn
- Parameters
  - t: T
  - u: U
  - v: V
  - w: W
  - x: X
  - y: Y
  - z: Z
  - Rest ...args: any[]
  Returns TReturn

Takes a function and returns a new one that will always have a particular context.

see

since

1.4

since

1.6

deprecated

Deprecated since 3.3. Use `{@link Function#bind }`.

example

````Change the context of functions bound to a click handler using the "function, context" signature. Unbind the first handler after first click.

<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery.proxy demo</title>
<script src="https://code.jquery.com/jquery-3.3.1.js"></script>
</head>
<body>

<p><button type="button" id="test">Test</button></p>
<div id="log"></div>

<script>
var me = {
type: "zombie",
test: function( event ) {
// Without proxy, `this` would refer to the event target
// use event.target to reference that element.
var element = event.target;
$( element ).css( "background-color", "red" );

// With proxy, `this` refers to the me object encapsulating
// this function.
$( "#log" ).append( "Hello " + this.type + "<br>" );
$( "#test" ).off( "click", this.test );
}
};

var you = {
type: "person",
test: function( event ) {
$( "#log" ).append( this.type + " " );
}
};

// Execute you.test() in the context of the `you` object
// no matter where it is called
// i.e. the `this` keyword will refer to `you`
var youClick = $.proxy( you.test, you );

// attach click handlers to #test
$( "#test" )
// this === "zombie"; handler unbound after first click
.on( "click", $.proxy( me.test, me ) )

// this === "person"
.on( "click", youClick )

// this === "zombie"
.on( "click", $.proxy( you.test, me ) )

// this === "<button> element"
.on( "click", you.test );
</script>

</body>
</html>

example

````Change the context of a function bound to the click handler,

<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery.proxy demo</title>
<script src="https://code.jquery.com/jquery-3.3.1.js"></script>
</head>
<body>

<p><button type="button" id="test">Test</button></p>
<div id="log"></div>

<script>
var me = {
// I'm a dog
type: "dog",

// Note that event comes *after* one and two
test: function( one, two, event ) {
$( "#log" )

// `one` maps to `you`, the 1st additional
// argument in the $.proxy function call
.append( "<h3>Hello " + one.type + ":</h3>" )

// The `this` keyword refers to `me`
// (the 2nd, context, argument of $.proxy)
.append( "I am a " + this.type + ", " )

// `two` maps to `they`, the 2nd additional
// argument in the $.proxy function call
.append( "and they are " + two.type + ".<br>" )

// The event type is "click"
.append( "Thanks for " + event.type + "ing." )

// The clicked element is `event.target`,
// and its type is "button"
.append( "the " + event.target.type + "." );
}
};

var you = { type: "cat" };
var they = { type: "fish" };

// Set up handler to execute me.test() in the context
// of `me`, with `you` and `they` as additional arguments
var proxy = $.proxy( me.test, me, you, they );

$( "#test" )
.on( "click", proxy );
</script>

</body>
</html>

Type parameters

TContext
TReturn
T
U
V
W
X
Y
Z

Parameters

funсtion: function

The function whose context will be changed.
- - (this: TContext, t: T, u: U, v: V, w: W, x: X, y: Y, z: Z, ...args: any[]): TReturn
  - Parameters
    - this: TContext
    - t: T
    - u: U
    - v: V
    - w: W
    - x: X
    - y: Y
    - z: Z
    - Rest ...args: any[]
    Returns TReturn
context: TContext

The object to which the context (this) of the function should be set.

Returns function

- (t: T, u: U, v: V, w: W, x: X, y: Y, z: Z, ...args: any[]): TReturn
- Parameters
  - t: T
  - u: U
  - v: V
  - w: W
  - x: X
  - y: Y
  - z: Z
  - Rest ...args: any[]
  Returns TReturn

Takes a function and returns a new one that will always have a particular context.

see

since

1.4

since

1.6

deprecated

Deprecated since 3.3. Use `{@link Function#bind }`.

example

````Change the context of functions bound to a click handler using the "function, context" signature. Unbind the first handler after first click.

<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery.proxy demo</title>
<script src="https://code.jquery.com/jquery-3.3.1.js"></script>
</head>
<body>

<p><button type="button" id="test">Test</button></p>
<div id="log"></div>

<script>
var me = {
type: "zombie",
test: function( event ) {
// Without proxy, `this` would refer to the event target
// use event.target to reference that element.
var element = event.target;
$( element ).css( "background-color", "red" );

// With proxy, `this` refers to the me object encapsulating
// this function.
$( "#log" ).append( "Hello " + this.type + "<br>" );
$( "#test" ).off( "click", this.test );
}
};

var you = {
type: "person",
test: function( event ) {
$( "#log" ).append( this.type + " " );
}
};

// Execute you.test() in the context of the `you` object
// no matter where it is called
// i.e. the `this` keyword will refer to `you`
var youClick = $.proxy( you.test, you );

// attach click handlers to #test
$( "#test" )
// this === "zombie"; handler unbound after first click
.on( "click", $.proxy( me.test, me ) )

// this === "person"
.on( "click", youClick )

// this === "zombie"
.on( "click", $.proxy( you.test, me ) )

// this === "<button> element"
.on( "click", you.test );
</script>

</body>
</html>

example

````Change the context of a function bound to the click handler,

<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery.proxy demo</title>
<script src="https://code.jquery.com/jquery-3.3.1.js"></script>
</head>
<body>

<p><button type="button" id="test">Test</button></p>
<div id="log"></div>

<script>
var me = {
// I'm a dog
type: "dog",

// Note that event comes *after* one and two
test: function( one, two, event ) {
$( "#log" )

// `one` maps to `you`, the 1st additional
// argument in the $.proxy function call
.append( "<h3>Hello " + one.type + ":</h3>" )

// The `this` keyword refers to `me`
// (the 2nd, context, argument of $.proxy)
.append( "I am a " + this.type + ", " )

// `two` maps to `they`, the 2nd additional
// argument in the $.proxy function call
.append( "and they are " + two.type + ".<br>" )

// The event type is "click"
.append( "Thanks for " + event.type + "ing." )

// The clicked element is `event.target`,
// and its type is "button"
.append( "the " + event.target.type + "." );
}
};

var you = { type: "cat" };
var they = { type: "fish" };

// Set up handler to execute me.test() in the context
// of `me`, with `you` and `they` as additional arguments
var proxy = $.proxy( me.test, me, you, they );

$( "#test" )
.on( "click", proxy );
</script>

</body>
</html>

Type parameters

TContext
TReturn

Parameters

funсtion: function

The function whose context will be changed.
- - (this: TContext, ...args: any[]): TReturn
  - Parameters
    - this: TContext
    - Rest ...args: any[]
    Returns TReturn
context: TContext

The object to which the context (this) of the function should be set.
Rest ...additionalArguments: any[]

Any number of arguments to be passed to the function referenced in the function argument.

Returns function

- (...args: any[]): TReturn
- Parameters
  - Rest ...args: any[]
  Returns TReturn

Takes a function and returns a new one that will always have a particular context.
see

``

since

1.4

since

1.6

deprecated

Deprecated since 3.3. Use `{@link Function#bind }`.

example
````Enforce the context of the function using the "context, function name" signature. Unbind the handler after first click.
```
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery.proxy demo</title>
<script src="https://code.jquery.com/jquery-3.3.1.js"></script>
</head>
<body>

<p><button id="test">Test</button></p>
<p id="log"></p>

<script>
var obj = {
name: "John",
test: function() {
$( "#log" ).append( this.name );
$( "#test" ).off( "click", obj.test );
}
};
$( "#test" ).on( "click", jQuery.proxy( obj, "test" ) );
</script>

</body>
</html>
```
Type parameters
- TContext
Parameters
- context: TContext
  
  The object to which the context of the function should be set.
- name: keyof TContext
  
  The name of the function whose context will be changed (should be a property of the context object).
- Rest ...additionalArguments: any[]
  
  Any number of arguments to be passed to the function named in the name argument.
Returns function
- - (...args: any[]): any
  - Parameters
    - Rest ...args: any[]
    Returns any

queue

queue<T>(element: T, queueName?: string, newQueue?: TypeOrArray<QueueFunction<T>>): Queue<T>

Manipulate the queue of functions to be executed on the matched element.

see

since

1.3

example

````Show the length of the queue.

<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery.queue demo</title>
<style>
div {
margin: 3px;
width: 40px;
height: 40px;
position: absolute;
left: 0px;
top: 30px;
background: green;
display: none;
}
div.newcolor {
background: blue;
}
span {
color: red;
}
</style>
<script src="https://code.jquery.com/jquery-3.3.1.js"></script>
</head>
<body>

<button id="show">Show Length of Queue</button>
<span></span>
<div></div>

<script>
$( "#show" ).click(function() {
var n = jQuery.queue( $( "div" )[ 0 ], "fx" );
$( "span" ).text( "Queue length is: " + n.length );
});

function runIt() {
$( "div" )
.show( "slow" )
.animate({
left: "+=200"
}, 2000 )
.slideToggle( 1000 )
.slideToggle( "fast" )
.animate({
left: "-=200"
}, 1500 )
.hide( "slow" )
.show( 1200 )
.slideUp( "normal", runIt );
}

runIt();
</script>

</body>
</html>

example

````Queue a custom function.

<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery.queue demo</title>
<style>
div {
margin: 3px;
width: 40px;
height: 40px;
position: absolute;
left: 0px;
top: 30px;
background: green;
display: none;
}
div.newcolor {
background: blue;
}
</style>
<script src="https://code.jquery.com/jquery-3.3.1.js"></script>
</head>
<body>

Click here...
<div></div>

<script>
$( document.body ).click(function() {
var divs = $( "div" )
.show( "slow" )
.animate({ left: "+=200" }, 2000 );
jQuery.queue( divs[ 0 ], "fx", function() {
$( this ).addClass( "newcolor" );
jQuery.dequeue( this );
});
divs.animate({ left: "-=200" }, 500 );
jQuery.queue( divs[ 0 ], "fx", function() {
$( this ).removeClass( "newcolor" );
jQuery.dequeue( this );
});
divs.slideUp();
});
</script>

</body>
</html>

example

````Set a queue array to delete the queue.

<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery.queue demo</title>
<style>
div {
margin: 3px;
width: 40px;
height: 40px;
position: absolute;
left: 0px;
top: 30px;
background: green;
display: none;
}
div.newcolor {
background: blue;
}
</style>
<script src="https://code.jquery.com/jquery-3.3.1.js"></script>
</head>
<body>

<button id="start">Start</button>
<button id="stop">Stop</button>
<div></div>

<script>
$( "#start" ).click(function() {
var divs = $( "div" )
.show( "slow" )
.animate({ left: "+=200" }, 5000 );
jQuery.queue( divs[ 0 ], "fx", function() {
$( this ).addClass( "newcolor" );
jQuery.dequeue( this );
});
divs.animate({ left: "-=200" }, 1500 );
jQuery.queue( divs[ 0 ], "fx", function() {
$( this ).removeClass( "newcolor" );
jQuery.dequeue( this );
});
divs.slideUp();
});
$( "#stop" ).click(function() {
jQuery.queue( $( "div" )[ 0 ], "fx", [] );
$( "div" ).stop();
});
</script>

</body>
</html>

Type parameters

T: Element

Parameters

element: T

A DOM element where the array of queued functions is attached.
Optional queueName: string

A string containing the name of the queue. Defaults to fx, the standard effects queue.
Optional newQueue: TypeOrArray<QueueFunction<T>>

The new function to add to the queue. An array of functions to replace the current queue contents.

Returns Queue<T>

readyException

readyException(error: Error): any

Handles errors thrown synchronously in functions wrapped in jQuery().
see

``

since

3.1

example
````Pass the received error to console.error.
```
jQuery.readyException = function( error ) {
console.error( error );
};
```
Parameters
- error: Error
  
  An error thrown in the function wrapped in jQuery().
Returns any

removeData

removeData(element: Element | Document | Window | PlainObject, name?: string): void

Remove a previously-stored piece of data.

see

since

1.2.3

example

````Set a data store for 2 names then remove one of them.

<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery.removeData demo</title>
<style>
div {
margin: 2px;
color: blue;
}
span {
color: red;
}
</style>
<script src="https://code.jquery.com/jquery-3.3.1.js"></script>
</head>
<body>

<div>value1 before creation: <span></span></div>
<div>value1 after creation: <span></span></div>
<div>value1 after removal: <span></span></div>
<div>value2 after removal: <span></span></div>

<script>
var div = $( "div" )[ 0 ];
$( "span:eq(0)" ).text( "" + $( "div" ).data( "test1" ) );
jQuery.data( div, "test1", "VALUE-1" );
jQuery.data( div, "test2", "VALUE-2" );
$( "span:eq(1)" ).text( "" + jQuery.data( div, "test1" ) );
jQuery.removeData( div, "test1" );
$( "span:eq(2)" ).text( "" + jQuery.data( div, "test1" ) );
$( "span:eq(3)" ).text( "" + jQuery.data( div, "test2" ) );
</script>

</body>
</html>

Parameters

element: Element | Document | Window | PlainObject

A DOM element from which to remove data.
Optional name: string

A string naming the piece of data to remove.

Returns void

speed

speed<TElement>(duration: Duration, easing: string, complete: function): EffectsOptions<TElement>
speed<TElement>(duration: Duration, easing_complete: string | function): EffectsOptions<TElement>
speed<TElement>(duration_complete_settings?: Duration | function | SpeedSettings<TElement>): EffectsOptions<TElement>

Creates an object containing a set of properties ready to be used in the definition of custom animations.

see

``

since

1.1

Type parameters
- TElement: Element
Parameters
- duration: Duration
  
  A string or number determining how long the animation will run.
- easing: string
  
  A string indicating which easing function to use for the transition.
- complete: function
  
  A function to call once the animation is complete, called once per matched element.
  - - (this: TElement): void
    - Parameters
      - this: TElement
      Returns void
Returns EffectsOptions<TElement>
Creates an object containing a set of properties ready to be used in the definition of custom animations.

see

``

since

1.0

since

1.1

Type parameters
- TElement: Element
Parameters
- duration: Duration
  
  A string or number determining how long the animation will run.
- easing_complete: string | function
  @param easing_complete
  - easing — A string indicating which easing function to use for the transition.
  - complete — A function to call once the animation is complete, called once per matched element.
Returns EffectsOptions<TElement>
Creates an object containing a set of properties ready to be used in the definition of custom animations.

see

``

since

1.0

since

1.1

Type parameters
- TElement: Element
Parameters
- Optional duration_complete_settings: Duration | function | SpeedSettings<TElement>
  @param duration_complete_settings
  - duration — A string or number determining how long the animation will run.
  - complete — A function to call once the animation is complete, called once per matched element.
  - settings —
Returns EffectsOptions<TElement>

trim

trim(str: string): string

Remove the whitespace from the beginning and end of a string.

see

since

1.0

example

````Remove the white spaces at the start and at the end of the string.

<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery.trim demo</title>
<script src="https://code.jquery.com/jquery-3.3.1.js"></script>
</head>
<body>

<pre id="original"></pre>
<pre id="trimmed"></pre>

<script>
var str = "         lots of spaces before and after         ";
$( "#original" ).html( "Original String: '" + str + "'" );
$( "#trimmed" ).html( "$.trim()'ed: '" + $.trim(str) + "'" );
</script>

</body>
</html>

example

````Remove the white spaces at the start and at the end of the string.

$.trim("    hello, how are you?    ");

example

````Remove the white spaces at the start and at the end of the string.

$.trim("    hello, how are you?    ");

Parameters

str: string

The string to trim.

Returns string

type

type(obj: any): "array" | "boolean" | "date" | "error" | "function" | "null" | "number" | "object" | "regexp" | "string" | "symbol" | "undefined"

Determine the internal JavaScript [[Class]] of an object.
see

``

since

1.4.3

deprecated

Deprecated since 3.3. See ``.

example
````Find out if the parameter is a RegExp.
```
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery.type demo</title>
<script src="https://code.jquery.com/jquery-3.3.1.js"></script>
</head>
<body>

Is it a RegExp? <b></b>

<script>
$( "b" ).append( "" + jQuery.type( /test/ ) );
</script>

</body>
</html>
```
Parameters
- obj: any
  
  Object to get the internal JavaScript [[Class]] of.
Returns "array" | "boolean" | "date" | "error" | "function" | "null" | "number" | "object" | "regexp" | "string" | "symbol" | "undefined"

unique

unique<T>(array: T[]): T[]

Sorts an array of DOM elements, in place, with the duplicates removed. Note that this only works on arrays of DOM elements, not strings or numbers.

see

since

1.1.3

deprecated

Deprecated since 3.0. Use ``.

Cause: The fact that jQuery.unique sorted its results in DOM order was surprising to many who did not read the documentation carefully. As of jQuery 3.0 this function is being renamed to make it clear.

Solution: Replace all uses of jQuery.unique with jQuery.uniqueSort which is the same function with a better name.

example

````Removes any duplicate elements from the array of divs.

<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery.unique demo</title>
<style>
div {
color: blue;
}
</style>
<script src="https://code.jquery.com/jquery-3.3.1.js"></script>
</head>
<body>

<div>There are 6 divs in this document.</div>
<div></div>
<div class="dup"></div>
<div class="dup"></div>
<div class="dup"></div>
<div></div>

<script>
// unique() must take a native array
var divs = $( "div" ).get();

// Add 3 elements of class dup too (they are divs)
divs = divs.concat( $( ".dup" ).get() );
$( "div:eq(1)" ).text( "Pre-unique there are " + divs.length + " elements." );

divs = jQuery.unique( divs );
$( "div:eq(2)" ).text( "Post-unique there are " + divs.length + " elements." )
.css( "color", "red" );
</script>

</body>
</html>

Type parameters

T: Element

Parameters

array: T[]

The Array of DOM elements.

Returns T[]

uniqueSort

uniqueSort<T>(array: T[]): T[]

Sorts an array of DOM elements, in place, with the duplicates removed. Note that this only works on arrays of DOM elements, not strings or numbers.

see

since

1.12

since

2.2

example

````Removes any duplicate elements from the array of divs.

<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery.uniqueSort demo</title>
<style>
div {
color: blue;
}
</style>
<script src="https://code.jquery.com/jquery-3.3.1.js"></script>
</head>
<body>

<div>There are 6 divs in this document.</div>
<div></div>
<div class="dup"></div>
<div class="dup"></div>
<div class="dup"></div>
<div></div>

<script>
// unique() must take a native array
var divs = $( "div" ).get();

// Add 3 elements of class dup too (they are divs)
divs = divs.concat( $( ".dup" ).get() );
$( "div:eq(1)" ).text( "Pre-unique there are " + divs.length + " elements." );

divs = jQuery.uniqueSort( divs );
$( "div:eq(2)" ).text( "Post-unique there are " + divs.length + " elements." )
.css( "color", "red" );
</script>

</body>
</html>

Type parameters

T: Element

Parameters

array: T[]

The Array of DOM elements.

Returns T[]

when

when<TR1, UR1, VR1, TJ1, UJ1, VJ1>(deferredT: Promise<TR1, TJ1> | Thenable<TR1> | TR1, deferredU: Promise<UR1, UJ1> | Thenable<UR1> | UR1, deferredV: Promise<VR1, VJ1> | Thenable<VR1> | VR1): Promise3<TR1, TJ1, never, UR1, UJ1, never, VR1, VJ1, never>
when<TR1, UR1, TJ1, UJ1>(deferredT: Promise<TR1, TJ1> | Thenable<TR1> | TR1, deferredU: Promise<UR1, UJ1> | Thenable<UR1> | UR1): Promise2<TR1, TJ1, never, UR1, UJ1, never>
when<TR1, TJ1, TR2, TJ2, TR3, TJ3>(deferredT: Promise3<TR1, TJ1, any, TR2, TJ2, any, TR3, TJ3, any> | Promise2<TR1, TJ1, any, TR2, TJ2, any>): Promise3<TR1, TJ1, never, TR2, TJ2, never, TR3, TJ3, never>
when<TR1, TJ1>(deferred: Promise<TR1, TJ1> | Thenable<TR1> | TR1): Promise<TR1, TJ1, never>
when<TR1, TJ1>(...deferreds: Array<Promise<TR1, TJ1> | Thenable<TR1> | TR1>): Promise<TR1, TJ1, never>
when(...deferreds: any[]): Promise<any, any, never>

Provides a way to execute callback functions based on zero or more Thenable objects, usually Deferred objects that represent asynchronous events.
see

``

since

1.5

example
````Execute a function after two Ajax requests are successful. (See the jQuery.ajax() documentation for a complete description of success and error cases for an ajax request).
```
$.when( $.ajax( "/page1.php" ), $.ajax( "/page2.php" ) ).done(function( a1, a2 ) {
// a1 and a2 are arguments resolved for the page1 and page2 ajax requests, respectively.
// Each argument is an array with the following structure: [ data, statusText, jqXHR ]
var data = a1[ 0 ] + a2[ 0 ]; // a1[ 0 ] = "Whip", a2[ 0 ] = " It"
if ( /Whip It/.test( data ) ) {
alert( "We got what we came for!" );
}
});
```
example
````Execute the function myFunc when both ajax requests are successful, or myFailure if either one has an error.
```
$.when( $.ajax( "/page1.php" ), $.ajax( "/page2.php" ) )
.then( myFunc, myFailure );
```
Type parameters
- TR1
- UR1
- VR1
- TJ1
- UJ1
- VJ1
Parameters
- deferredT: Promise<TR1, TJ1> | Thenable<TR1> | TR1
- deferredU: Promise<UR1, UJ1> | Thenable<UR1> | UR1
- deferredV: Promise<VR1, VJ1> | Thenable<VR1> | VR1
Returns Promise3<TR1, TJ1, never, UR1, UJ1, never, VR1, VJ1, never>
Provides a way to execute callback functions based on zero or more Thenable objects, usually Deferred objects that represent asynchronous events.
see

``

since

1.5

example
````Execute a function after two Ajax requests are successful. (See the jQuery.ajax() documentation for a complete description of success and error cases for an ajax request).
```
$.when( $.ajax( "/page1.php" ), $.ajax( "/page2.php" ) ).done(function( a1, a2 ) {
// a1 and a2 are arguments resolved for the page1 and page2 ajax requests, respectively.
// Each argument is an array with the following structure: [ data, statusText, jqXHR ]
var data = a1[ 0 ] + a2[ 0 ]; // a1[ 0 ] = "Whip", a2[ 0 ] = " It"
if ( /Whip It/.test( data ) ) {
alert( "We got what we came for!" );
}
});
```
example
````Execute the function myFunc when both ajax requests are successful, or myFailure if either one has an error.
```
$.when( $.ajax( "/page1.php" ), $.ajax( "/page2.php" ) )
.then( myFunc, myFailure );
```
Type parameters
- TR1
- UR1
- TJ1
- UJ1
Parameters
- deferredT: Promise<TR1, TJ1> | Thenable<TR1> | TR1
- deferredU: Promise<UR1, UJ1> | Thenable<UR1> | UR1
Returns Promise2<TR1, TJ1, never, UR1, UJ1, never>
Provides a way to execute callback functions based on zero or more Thenable objects, usually Deferred objects that represent asynchronous events.
see

``

since

1.5

example
````Execute a function after two Ajax requests are successful. (See the jQuery.ajax() documentation for a complete description of success and error cases for an ajax request).
```
$.when( $.ajax( "/page1.php" ), $.ajax( "/page2.php" ) ).done(function( a1, a2 ) {
// a1 and a2 are arguments resolved for the page1 and page2 ajax requests, respectively.
// Each argument is an array with the following structure: [ data, statusText, jqXHR ]
var data = a1[ 0 ] + a2[ 0 ]; // a1[ 0 ] = "Whip", a2[ 0 ] = " It"
if ( /Whip It/.test( data ) ) {
alert( "We got what we came for!" );
}
});
```
example
````Execute the function myFunc when both ajax requests are successful, or myFailure if either one has an error.
```
$.when( $.ajax( "/page1.php" ), $.ajax( "/page2.php" ) )
.then( myFunc, myFailure );
```
Type parameters
- TR1
- TJ1
- TR2
- TJ2
- TR3
- TJ3
Parameters
- deferredT: Promise3<TR1, TJ1, any, TR2, TJ2, any, TR3, TJ3, any> | Promise2<TR1, TJ1, any, TR2, TJ2, any>
Returns Promise3<TR1, TJ1, never, TR2, TJ2, never, TR3, TJ3, never>
Provides a way to execute callback functions based on zero or more Thenable objects, usually Deferred objects that represent asynchronous events.
see

``

since

1.5

example
````Execute a function after two Ajax requests are successful. (See the jQuery.ajax() documentation for a complete description of success and error cases for an ajax request).
```
$.when( $.ajax( "/page1.php" ), $.ajax( "/page2.php" ) ).done(function( a1, a2 ) {
// a1 and a2 are arguments resolved for the page1 and page2 ajax requests, respectively.
// Each argument is an array with the following structure: [ data, statusText, jqXHR ]
var data = a1[ 0 ] + a2[ 0 ]; // a1[ 0 ] = "Whip", a2[ 0 ] = " It"
if ( /Whip It/.test( data ) ) {
alert( "We got what we came for!" );
}
});
```
example
````Execute the function myFunc when both ajax requests are successful, or myFailure if either one has an error.
```
$.when( $.ajax( "/page1.php" ), $.ajax( "/page2.php" ) )
.then( myFunc, myFailure );
```
Type parameters
- TR1
- TJ1
Parameters
- deferred: Promise<TR1, TJ1> | Thenable<TR1> | TR1
Returns Promise<TR1, TJ1, never>
Provides a way to execute callback functions based on zero or more Thenable objects, usually Deferred objects that represent asynchronous events.
see

``

since

1.5

example
````Execute a function after two Ajax requests are successful. (See the jQuery.ajax() documentation for a complete description of success and error cases for an ajax request).
```
$.when( $.ajax( "/page1.php" ), $.ajax( "/page2.php" ) ).done(function( a1, a2 ) {
// a1 and a2 are arguments resolved for the page1 and page2 ajax requests, respectively.
// Each argument is an array with the following structure: [ data, statusText, jqXHR ]
var data = a1[ 0 ] + a2[ 0 ]; // a1[ 0 ] = "Whip", a2[ 0 ] = " It"
if ( /Whip It/.test( data ) ) {
alert( "We got what we came for!" );
}
});
```
example
````Execute the function myFunc when both ajax requests are successful, or myFailure if either one has an error.
```
$.when( $.ajax( "/page1.php" ), $.ajax( "/page2.php" ) )
.then( myFunc, myFailure );
```
Type parameters
- TR1
- TJ1
Parameters
- Rest ...deferreds: Array<Promise<TR1, TJ1> | Thenable<TR1> | TR1>
  
  Zero or more Thenable objects.
Returns Promise<TR1, TJ1, never>
Provides a way to execute callback functions based on zero or more Thenable objects, usually Deferred objects that represent asynchronous events.
see

``

since

1.5

example
````Execute a function after two Ajax requests are successful. (See the jQuery.ajax() documentation for a complete description of success and error cases for an ajax request).
```
$.when( $.ajax( "/page1.php" ), $.ajax( "/page2.php" ) ).done(function( a1, a2 ) {
// a1 and a2 are arguments resolved for the page1 and page2 ajax requests, respectively.
// Each argument is an array with the following structure: [ data, statusText, jqXHR ]
var data = a1[ 0 ] + a2[ 0 ]; // a1[ 0 ] = "Whip", a2[ 0 ] = " It"
if ( /Whip It/.test( data ) ) {
alert( "We got what we came for!" );
}
});
```
example
````Execute the function myFunc when both ajax requests are successful, or myFailure if either one has an error.
```
$.when( $.ajax( "/page1.php" ), $.ajax( "/page2.php" ) )
.then( myFunc, myFailure );
```
Parameters
- Rest ...deferreds: any[]
  
  Zero or more Thenable objects.
Returns Promise<any, any, never>

Hierarchy

Callable

Parameters

window: Window

discriminator: boolean

Returns JQueryStatic

Type parameters

TElement: HTMLElement

Parameters

html: htmlString

Optional ownerDocument_attributes: Document | PlainObject

Returns JQuery<TElement>

Type parameters

TElement: Element

Parameters

selector: Selector

Optional context: Element | Document | JQuery | Selector

Returns JQuery<TElement>

Parameters

element: HTMLSelectElement

Returns JQuery<HTMLSelectElement>

Type parameters

T: Element

Parameters

element_elementArray: T | ArrayLike<T>

Returns JQuery<T>

Type parameters

T

Parameters

selection: JQuery<T>

Returns JQuery<T>

Type parameters

TElement

Parameters

callback: function

Parameters

this: Document

$: JQueryStatic

Returns void

Returns JQuery<TElement>

Type parameters

T: PlainObject

Parameters

object: T

Returns JQuery<T>

Type parameters

TElement

Returns JQuery<TElement>

Index

Properties

Methods

Properties

Animation

Callbacks

Deferred

Event

Tween

ajaxSettings

cssHooks

cssNumber

easing

event

expr

fn

fx

ready

support

timers

valHooks

Methods

ajax

Parameters

url: string

Optional settings: AjaxSettings

Returns jqXHR

Parameters

Optional settings: AjaxSettings

Returns jqXHR

ajaxPrefilter

Parameters