jQuery: Disable a callback list from doing anything more

Last update on May 30 2022 10:21:22 (UTC/GMT +8 hours)

jQuery Fundamental - I : Exercise-43

Disable a callback list from doing anything more.

Sample solution :

HTML Code :

<!DOCTYPE html>
<html>
<head>
<script src="https://code.jquery.com/jquery-git.js"></script>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width">
<title>Disable a callback list from doing anything more.</title>
</head>
<body>
</body>
</html>

JavaScript Code :

var f1 = function( value ) {
  console.log( value );
};


var callbacks = $.Callbacks();

// Add the above function to the list
callbacks.add( f1 );
 
// Fire the items on the list
callbacks.fire( "jQuery" );
 
// Disable further calls being possible
callbacks.disable();
 
// Attempt to fire with "JavaScript" as an argument
callbacks.fire( "JavaScript" );
// JavaScript isn't output

See the Pen jquery-fundamental-exercise-43 by w3resource (@w3resource) on CodePen.

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