jQuery trigger( event, [data] ) Method

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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:


   <script type="text/javascript"  src="../../js/jquery-2.2.0.js"></script>
   <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 Output:</span>
   <div id="div1" style="background-color:blue;">ONE</div>
   <div id="div2" style="background-color:blue;">TWO</div>
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