jQuery addClass example

Change class name on click in jQuery

by ivanhalen

HTML

<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery.dirtyforms/2.0.0/jquery.dirtyforms.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery.blockUI/2.70/jquery.blockUI.min.js"></script>
<p>Change the field content to activate DirtyForms, then click on the link.<br>
When the popup appears, click on "cancel" to stay on the page.<br>
Watch blockUI getting fired as the link is going to be followed</p>
<form action="#" method="post">
  <input type="text" name="username" required>
  <button type="submit">send</button>
</form>
<a href="https://google.com">click me after changing field content</a>

JavaScript

$('form[method="post"]').dirtyForms();
$('a').on('click', function(){
	$.blockUI();
})