jQuery - isPropagationStopped() Method

Description:

The isPropagationStopped() method checks whether event.stopPropagation() was ever called on this event object.

This method returns true in case event.stopPropagation() method has been already called, otherwise it returns false.

Syntax:

Here is the simple syntax to use this method −

event.isPropagationStopped()

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 −

<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() {

      $("div").click(function(event){
          alert("This is : " + $(this).text());
          if ( event.isPropagationStopped() ){
             alert( "Event bubbling is disabled - 1" );
          }else{
             alert( "Event bubbling is enabled - 1" );
          }
          event.stopPropagation();
          if ( event.isPropagationStopped() ){
             alert( "Event bubbling is disabled - 2" );
          }else{
             alert( "Event bubbling is enabled - 2" );
          }
      });

   });
   </script>
   <style>
      div{ margin:10px;padding:12px;
             border:2px solid #666;
             width:160px;
           }
  </style>
</head>
<body>
   <p>Click on any box to see the effect:</p>
   <div id="div1" style="background-color:blue;">
       OUTER BOX
       <div id="div2" style="background-color:red;">
             INNER BOX
      </div> 
  </div>
</body>
</html>

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