.unload()

Syntax

.unload(handler)

Parameters

handler: A function to execute when the event is triggered

Return value

The jQuery object, for chaining purposes.

Description

This method is a shortcut for .bind('unload', handler). It binds an event handler to the unload JavaScript event.

Any unload event handler should be bound to the window object.


$(window).unload(function() {
    alert('called.');
});

Unload event

 
<html>
  <head>
    <script src="http://java2s.com/Book/JavaScriptDemo/jQuery/jquery-1.8.0.min.js"></script>
    <script type="text/javascript">
        $(document).ready(function(){
            $(window).unload( function () { alert("Bye now!"); } );
        });
    </script>
  </head>
  <body>
    <body>
    <form action="javascript:alert('success!');">
        <div>
          <input type="text" />
          <input type="submit" />
        </div>
     </form>
     <div></div>
    </body>
</html>

Click to view the demo

Display an alert when a page is unloaded


$(window).unload( function () { alert("Bye now!"); } );

Home
JavaScript Book
jQuery

Event: