Info

To confirm a question asked here:

http://stackoverflow.com/questions/4901553/jquery-hasclass-vs-is

I belive hasClass should be faster.

Preparation code

<div id="foo">
  I am a DIV
</div>
<script src="//ajax.googleapis.com/ajax/libs/jquery/1/jquery.min.js">
</script>

Preparation code output

Test runner

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$('#foo').hasClass('bar');

$('#foo').is('.bar');

/(^|\W)bar(\W|$)/ig.test($('#foo').get(0).className);

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Revisions

You can edit these tests or add even more tests to this page by appending /edit to the URL. Here’s a list of current revisions for this page:

• Revision 1: published by Sarfraz Ahmed on 24th February 2012
• Revision 2: published on 25th February 2012
• Revision 4: published by fearphage on 11th May 2012
• Revision 6: published by hasClass vs is vs className on 18th December 2012
• Revision 7: published on 27th December 2012
• Revision 9: published by Maico Borges on 5th April 2013
• Revision 10: published 5 days ago

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