jQuery Event How to - Fire events

Question

We would like to know how to fire events.

Answer


<html>
  <head>
    <script type="text/javascript" src='http://code.jquery.com/jquery-1.5.2.js'></script>
    <script type="text/javascript">
        $(document).ready(function(){<!--   www .j av a 2s .c o m-->
            $("#old").click(function(){
              $("input").trigger("focus");
            });
            $("#new").click(function(){
              $("input").triggerHandler("focus");
            });
            $("input").focus(function(){
              $("<span>Focused!</span>").appendTo("body");
            });
        });
    </script>

  </head>
  <body>
          <button id="old">.trigger("focus")</button>
          <button id="new">.triggerHandler("focus")</button><br/><br/>
        
          <input type="text" value="To Be Focused"/>
                         
    </body>
</html>

The code above is rendered as follows: