Info

Fastest way to select elements with a class when they are child of an id

Preparation code

<script src="//ajax.googleapis.com/ajax/libs/jquery/1/jquery.min.js">
</script>
<div>
  <div id='a'>
    <p>
      adqqw sa q dq
    </p>
    <div>
      asdadadasdas adad asd
      <div class='b'>
        THasdadsda
      </div>
    </div>
  </div>
  <div>

Preparation code output

Test runner

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var b = $('#a .b');

var b = $('#a').find('.b');

var b = $('#a > .b');

var b = $('#a').children('.b');

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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 Thomas Genin on 1st February 2012
• Revision 2: published on 2nd February 2012

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