.undelegate()
.undelegate( ) Returns: jQuery
Description: Remove a handler from the event for all elements which match the current selector, based upon a specific set of root elements.
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version added: 1.4.2.undelegate()
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version added: 1.4.2.undelegate( selector, eventType )
selectorA selector which will be used to filter the event results.
eventTypeA string containing a JavaScript event type, such as "click" or "keydown"
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version added: 1.4.2.undelegate( selector, eventType, handler )
selectorA selector which will be used to filter the event results.
eventTypeA string containing a JavaScript event type, such as "click" or "keydown"
handlerA function to execute at the time the event is triggered.
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version added: 1.4.3.undelegate( selector, events )
selectorA selector which will be used to filter the event results.
eventsA map of one or more event types and previously bound functions to unbind from them.
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version added: 1.6.undelegate( namespace )
namespaceA string containing a namespace to unbind all events from.
The .undelegate() method is a way of removing event handlers that have been bound using .delegate(). As of jQuery 1.7, the .on() and .off() methods are preferred for attaching and removing event handlers.
Examples:
Example: Can bind and unbind events to the colored button.
<!DOCTYPE html>
<html>
<head>
<style>
button { margin:5px; }
button#theone { color:red; background:yellow; }
</style>
<script src="http://code.jquery.com/jquery-1.7rc2.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>Example: To unbind all delegated events from all paragraphs, write:
$("p").undelegate()Example: To unbind all delegated click events from all paragraphs, write:
$("p").undelegate( "click" )Example: 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); Example: 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");