Faster jQuery Tips

JavaScript performance comparison

Test case created by Ran Bar-Zik

Preparation code

<script src="https://ajax.googleapis.com/ajax/libs/jquery/1/jquery.min.js"></script>
<div id="my-id" class="my-class"></div>
<div id="foo" class="foo">
    <div id="bar" class="bar">
        <div id="baz" class="baz">
        </div>
    </div>
</div>
    

Preparation code output

<div id="my-id" class="my-class"></div> <div id="foo" class="foo"> <div id="bar" class="bar"> <div id="baz" class="baz"> </div> </div> </div>

Test runner

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Java applet disabled.

Testing in CCBot 2.0.0 / Other 0.0.0
Test Ops/sec
id only
$('#my-id');
pending…
class only
$('.my-class');
pending…
class and element
$('div.my-class');
pending…
id with parent
$('#foo #baz');
pending…
class with parent
$('.foo .baz');
pending…

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Revisions

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