jQuery change() with Example

jQuery Web Development Front End Technology

The change() method in jQuery is used to trigger the change event. It occurs when the value of an element has been changed.

Syntax

The syntax is as follows −

$(selector).change()

Example

Let us now see an example to implement the jQuery change() method −

Live Demo

<!DOCTYPE html>
<html>
<head>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.4.1/jquery.min.js"></script>
<script>
   $(document).ready(function() {
      $(".demo").change(function() {
         $(this).css("background-color", "red");
      });
   });
</script>
</head>
<body>
<h2>Login</h2>
Enter Username:
<input type="text" class="demo"><br>
Enter Password:
<input type="password">
</body>
</html>