jQuery - isDefaultPrevented() Method

Description:

The isDefaultPrevented() method checks whether event.preventDefault() was ever called on this event object.

This method returns true in case preventDefault() has been called otherwise it returns false.

Syntax:

Here is the simple syntax to use this method −

event.isDefaultPrevented()

Parameters:

Here is the description of all the parameters used by this method −

Example:

Following is a simple example a simple showing the usage of this method. This example demonstrate how you can stop the browser from changing the page to the href of any anchors.

<html>
<head>
<title>the title</title>
   <script type="text/javascript" 
   src="/jquery/jquery-1.3.2.min.js">
      </script>
   <script type="text/javascript" language="javascript">
   
   $(document).ready(function() {

      
      $("a").click(function(event){

         if ( event.isDefaultPrevented() ){
            alert( "Default behavior is disabled - 1" );
         }else{
            alert( "Default behavior is enabled - 1" );
         }
         event.preventDefault();
         if ( event.isDefaultPrevented() ){
            alert( "Default behavior is disabled - 2" );
         }else{
            alert( "Default behavior is enabled - 2" );
         }

      });

   });
   </script>
</head>
<body>
   <span>Click the following link and it won't work:</span>
   <a href="https://www.google.com">GOOGLE Inc.</a>
</body>
</html>

To understand it in better way you can Try it yourself.