w3resource

jQuery: How to detect a textbox's content has changed using jQuery

jQuery Practical exercise Part - I : Exercise-28

How to detect a textbox's content has changed using jQuery?

Sample Solution:

HTML Code :


<!DOCTYPE html>
<html>
<head>
<script src="https://code.jquery.com/jquery-git.js"></script>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width">
<title>How to detect a textbox's content has changed using jQuery</title>
</head>
<body>
<form action="demo_form.asp">
First name: <input type="text" id="name1" name="fname"><br>
Last name: <input type="text" id="name2" name="lname"><br>
<input type="submit" value="Submit">
</form>
</body>
</html>

JavaScript Code:

$('#name1').on('input', function() {
console.log('New First name added');
});

See the Pen jquery-practical-exercise-28 by w3resource (@w3resource) on CodePen.


Contribute your code and comments through Disqus.

Previous: Convert a jQuery object into a string.
Next: Remove a specific value from an array using jQuery.

What is the difficulty level of this exercise?

Test your Programming skills with w3resource's quiz.



Follow us on Facebook and Twitter for latest update.