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.

Live Demo

<html>
   <head>
      <title>The jQuery Example</title>
      <script type = "text/javascript" 
         src = "https://ajax.googleapis.com/ajax/libs/jquery/2.1.3/jquery.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>

This will produce following result −

jquery-events.htm