jQuery: Attach a function to the blur event

Last update on August 19 2022 21:50:45 (UTC/GMT +8 hours)

jQuery Events : Exercise-2 with Solution

Attach a function to the blur event. The blur event occurs when the following <input> Field1 loses focus.
Sample Data :

HTML :

 <body>
 <form>
   <input id="field1" type="text" value="Field 1">
   <input id="field2" type="text" value="Field 2">
 </form>
</body>

Solution:

HTML Code :

<!DOCTYPE html>
<html>
<head>
<script src="//code.jquery.com/jquery-1.11.1.min.js"></script>
  <meta charset="utf-8">
  <title>jQuery: Attach a function to the blur event</title>
</head>
<body>
<form>
<input id="field1" type="text" value="Field 1">
<input id="field2" type="text" value="Field 2">
</form>
  <p>Write something in the input Field 1, and then click outside the field to check lose focus.</p>
</body>
</html>

JavaScript Code :

$( "#field1" ).blur(function() {
  alert( "Lose focus from Field1" );
});

Note : In jQuery blur( handler ) method is used to bind an event handler to the "blur" JavaScript event, or trigger that event on an element. It has the following parameter :

handler : A function to execute each time the event is triggered. [Type: Function( Event eventObject )]

Live Demo:

See the Pen jquery-events-exercise-2 by w3resource (@w3resource) on CodePen.

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