jQuery undelegate() Method
The jQuery undelegate() method is an inbuilt method that is used to remove the specified event handler from the selected element.
Syntax:
$(selector).undelegate(selector, event, function)
Parameters: This method accepts three parameters as mentioned above and described below:
- selector: It is an optional parameter that is used to specify the selector from which the event will remove.
- event: It is an optional parameter that is used to specify the name of the event type on the selector.
- function: It is an optional parameter that is used to specify the name of the handler function to remove.
The below examples illustrate the undelegate() method in jQuery:
Example 1: This example does not contain any parameters.
HTML
<!DOCTYPE html>
< html >
< head >
< title >The undelegate Method</ title >
< script src =
</ script >
< script >
$(document).ready(function () {
$("body").delegate("p", "click", function () {
$(this).css("font-size", "25px");
});
$("button").click(function () {
$("body").undelegate();
});
});
</ script >
< style >
div {
width: 300px;
height: 100px;
background-color: lightgreen;
padding: 20px;
font-weight: bold;
font-size: 20px;
border: 2px solid green;
}
button {
margin-top: 10px;
}
</ style >
</ head >
< body >
< div >
< p >Welcome to GeeksforGeeks!.</ p >
</ div >
< button >Remove...!</ button >
</ body >
</ html >
|
Output:
Note: First click on the button and then click on the paragraph, then no changes occur.
Example 2: This example contains all parameters.
HTML
<!DOCTYPE html>
< html >
< head >
< title >The undelegate Method</ title >
< script src =
</ script >
< script >
$(document).ready(function () {
$("body").delegate("div", "click", function () {
$(this).animate({
height: "+=100px"
});
$(this).animate({
width: "+=100px"
});
});
$("button").click(function () {
$("body").undelegate("div", "click");
});
});
</ script >
< style >
div {
width: 30px;
height: 30px;
background-color: green;
}
button {
margin-top: 10px;
}
</ style >
</ head >
< body >
< div ></ div >
< button >Click here..!</ button >
</ body >
</ html >
|
Output:
Note: If click on the button and then click on the div element then no change in the size will take place.
Last Updated :
07 Jul, 2023
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