jQuery children vs find

JavaScript performance comparison

Revision 3 of this test case created by zarjay

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="https://ajax.googleapis.com/ajax/libs/jquery/1/jquery.min.js"></script>

    

Preparation code output

<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>

Test runner

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Testing in CCBot 2.0.0 / Other 0.0.0
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

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