jQuery Examples - focus( fn )

Quiz

Description

The focus(fn) method binds a function to the focus event of each matched element.

Syntax

Here is the simple syntax to use this method −

selector.focus(fn)

Parameters

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

fn − A function to bind to the event on each of the set of matched elements.

Example

Following is a simple example showing the usage of this method. Here it binds a function to the focus event of each matched element −

<html>
   <head>
      <title>The jQuery Example</title>
      <script type = "text/javascript" src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.3/jquery.min.js"></script>
      <script type = "text/javascript" language = "javascript">
         $(document).ready(function() {         
            $("#result1").blur(function(){
               alert("focus lost!");  
            });
         });
         function setFocus(){		   
            $("#result1").focus();
         }
         function removeFocus(){
            $("#result1").blur();
         }
      </script>	
   </head>	

   <body>			
      <form name = "sampleForm">
         <label>Enter Name: </label><input type = "text" id = "result1" title="Enter Name" value = "" ></input><br/><br/>         
         <input type = "button" value = "Focus" onclick="setFocus();"/>  <input type = "button" value = "Remove Focus" onclick="removeFocus();"/>
      </form>		
   </body>	
</html>

This will produce following result −

jqueryexamples_events.htm

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