.undelegate()Returns: jQueryversion deprecated: 3.0
Description: Remove a handler from the event for all elements which match the current selector, based upon a specific set of root elements.
-
version added: 1.4.2.undelegate()
- This signature does not accept any arguments.
-
version added: 1.4.2.undelegate( selector, eventType )
-
version added: 1.4.2.undelegate( selector, eventType, handler )
-
version added: 1.4.3.undelegate( selector, events )
- selectorType: StringA selector which will be used to filter the event results.
- eventsType: PlainObjectAn object of one or more event types and previously bound functions to unbind from them.
-
-
version added: 1.6.undelegate( namespace )
- namespaceType: StringA string containing a namespace to unbind all events from.
-
As of jQuery 3.0, .undelegate() has been deprecated. It was superseded by the .off() method since jQuery 1.7, so its use was already discouraged.
The .undelegate() method is a way of removing event handlers that have been bound using .delegate().
Examples:
Can bind and unbind events to the colored button.
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>undelegate demo</title>
<style>
button {
margin: 5px;
}
button#theone {
color: red;
background: yellow;
}
</style>
<script src="https://code.jquery.com/jquery-3.5.0.js"></script>
</head>
<body>
<button id="theone">Does nothing...</button>
<button id="bind">Bind Click</button>
<button id="unbind">Unbind Click</button>
<div style="display:none;">Click!</div>
<script>
function aClick() {
$( "div" ).show().fadeOut( "slow" );
}
$( "#bind" ).click(function() {
$( "body" )
.delegate( "#theone", "click", aClick )
.find( "#theone" ).text( "Can Click!" );
});
$( "#unbind" ).click(function() {
$( "body" )
.undelegate( "#theone", "click", aClick )
.find( "#theone" ).text( "Does nothing..." );
});
</script>
</body>
</html> Demo:
To unbind all delegated events from all paragraphs, write:
$( "p" ).undelegate();
To unbind all delegated click events from all paragraphs, write:
$( "p" ).undelegate( "click" );
To undelegate just one previously bound handler, pass the function in as the third argument:
var foo = function () {
// Code to handle some kind of event
};
// ... Now foo will be called when paragraphs are clicked ...
$( "body" ).delegate( "p", "click", foo );
// ... foo will no longer be called.
$( "body" ).undelegate( "p", "click", foo ); To unbind all delegated events by their namespace:
var foo = function() {
// Code to handle some kind of event
};
// Delegate events under the ".whatever" namespace
$( "form" ).delegate( ":button", "click.whatever", foo );
$( "form" ).delegate( "input[type='text'] ", "keypress.whatever", foo );
// Unbind all events delegated under the ".whatever" namespace
$( "form" ).undelegate( ".whatever" );