jQuery - trigger( event, [data] ) Method



The trigger( event, [data] ) method triggers an event on every matched element.

Triggered events aren't limited to browser-based events, you can also trigger custom events registered with bind.


Here is the simple syntax to use this method:

selector.trigger( event, [data] )


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

  • event: An event object or type to trigger.

  • data : This is an optional parameters and represents additional data to pass as arguments (after the event object) to the event handler.


Following is a simple example a simple showing the usage of this method. Here you would trigger a click event on square TWO by clicking on square ONE:

<title>The jQuery Example</title>
   <script type="text/javascript" 
   <script type="text/javascript" language="javascript">
   $(document).ready(function() {

      $("#div1").click( function () {

      $("#div2").click( function () {
           alert( "Square TWO is clicked");

      div{ margin:10px;padding:12px;
             border:2px solid #666;
   <span>Click square ONE to see the result:</span>
   <div id="div1" style="background-color:blue;">ONE</div>
   <div id="div2" style="background-color:blue;">TWO</div>