jQuery children vs find

JavaScript performance comparison

Revision 3 of this test case created by zarjay on 7th October 2011

Info

This testcase compares the performance of .children() and .find()

Preparation code

<div id="test">
 <div class="level1"><div class="level2"></div></div>
 <div class="level1"><div class="level2"></div></div>
 <div class="level1"><div class="level2"></div></div>
 <div class="level1"><div class="level2"></div></div>
 <div class="level1"><div class="level2"></div></div>
 <div class="level1"><div class="level2"></div></div>
 <div class="level1"><div class="level2"></div></div>
 <div class="level1"><div class="level2"></div></div>
 <div class="level1"><div class="level2"></div></div>
 <div class="level1"><div class="level2"></div></div>
 <div class="level1"><div class="level2"></div></div>
 <div class="level1"><div class="level2"></div></div>
</div><script src="//ajax.googleapis.com/ajax/libs/jquery/1/jquery.min.js"></script>

Preparation code output

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Testing in unknown unknown
Test		Ops/sec
children('div')	`$('#test').children('div'); // 12 results`	pending…
find('div')	`$('#test').find('div'); // 24 results`	pending…
children('.level1')	`$('#test').children('.level1'); // 12 results`	pending…
find('.level1')	`$('#test').find('.level1'); // 12 results`	pending…
children('.level2')	`$('#test').children('.level2'); // 0 results`	pending…
find('.level2')	`$('#test').find('.level2'); // 12 results`	pending…
children('.doesnotexist')	`$('#test').children('.doesnotexist'); // 0 results`	pending…
find('.doesnotexist')	`$('#test').find('.doesnotexist'); // 0 results`	pending…

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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 Andreas Göbel on 11th February 2011
Revision 3: published by zarjay on 7th October 2011
Revision 5: published by tsb on 11th October 2011
Revision 6: published on 12th October 2011
Revision 7: published on 21st October 2011
Revision 8: published by zarjay on 31st October 2011 and last updated on 1st November 2011
Revision 9: published on 7th November 2011
Revision 10: published by Sam Blowes on 15th November 2011
Revision 11: published on 4th December 2011
Revision 12: published on 16th December 2011
Revision 13: published on 27th January 2012
Revision 14: published on 27th January 2012
Revision 15: published 3 weeks ago
Revision 18: published 2 days ago