.undelegate()
.undelegate( ) Returns: jQuery
Description: Remove a handler from the event for all elements which match the current selector, now or in the future, based upon a specific set of root elements.
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.
Undelegate is a way of removing event handlers that have been bound using .delegate(). It works virtually identically to .die() with the addition of a selector filter argument (which is required for delegation to work).
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-latest.min.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:
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
};
$("body").delegate("p", "click", foo); // ... now foo will be called when paragraphs are clicked ...
$("body").undelegate("p", "click", foo); // ... foo will no longer be called.
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