jQuery callbacks.fire() Method
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jQuery callbacks.fire() Method
The jQuery callbacks.fire() method calls all of the callbacks with the given arguments.
Note: $.Callbacks() is a multi-purpose callbacks list object that provides a powerful way to manage callback lists.
Example
HTML Editor
<!DOCTYPE html>
<html lang="en-US">
<head>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.5.1/jquery.min.js"></script>
</head>
<body>
<h1>jQuery callbacks.fire() Method</h1>
<p>Click on the button and check your console.</p>
<button>Click Me</button>
<script>
$(document).ready(function(){
$("button").click(function(){
var callbacks = $.Callbacks();
callbacks.add(foo);
callbacks.add(bar);
callbacks.fire("hello");
function foo(value){
console.log("foo : " +value);
}
function bar(value){
console.log("bar : " +value);
}
});
});
</script>
</body>
</html>
Syntax
callbacks.fire(args);
Parameter Values
| Value | Type | Explanation |
|---|---|---|
| args | Required | Specifies the argument or list of arguments to pass back to the callbacks list. |
Deep Understanding
The following example will fire foo function for 2 times and bar function for just 1 time.
Example
HTML Editor
<!DOCTYPE html>
<html lang="en-US">
<head>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.5.1/jquery.min.js"></script>
</head>
<body>
<h1>jQuery callbacks.fire() Method</h1>
<p>Click on the button and check your console.</p>
<button>Click Me</button>
<script>
$(document).ready(function(){
$("button").click(function(){
var callbacks = $.Callbacks();
callbacks.add(foo);
callbacks.fire("hello foo");
callbacks.add(bar);
callbacks.fire("hello bar");
function foo(value){
console.log("foo : " +value);
}
function bar(value){
console.log("bar : " +value);
}
});
});
</script>
</body>
</html>
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