.keydown()

Syntax and Description


.keydown(handler)             
.keydown()

handler is a function to execute each time the event is triggered. Return value is the jQuery object, for chaining purposes.

keydown binds an event handler to the keydown JavaScript event, or trigger that event on an element.

.keydown(handler) is a shortcut for .bind('keydown', handler). .keydown() is a shortcut for and .trigger('keydown').

We can trigger the event manually when another element is clicked.


$('#other').click(function() {
    $('#target').keydown();
});

Listen to keydown event

The following code listens to keydown event and displays the key code for the key pressed.


<html>
  <head>
    <script src="http://java2s.com/style/jquery-1.8.0.min.js"></script>
    <script type="text/javascript">
        $(document).ready(function(){<!-- www .  j a  v a  2 s  .  c o m-->
            $(window).keydown(function(event){
               alert(event.keyCode);
            });
        });
    </script>
  </head>
  <body>
    <body>
     <p><input type="text" /> <span>ja va2s.com</span></p>
    </body>
</html>

Click to view the demo

The code above generates the following result.