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Run results for:
jQuery by class vs Document.getElementsByClassName
Comparing speed of getting element by id with jQuery vs Vanilla JS
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<iframe src="https://measurethat.net/Embed?id=591728" width="100%" height="500px"></iframe>
Run details:
User agent:
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/133.0.0.0 Safari/537.36
Browser:
Chrome 133
Operating system:
Windows
Device Platform:
Desktop
Date tested:
one year ago
Test name
Executions per second
jQuery
1545464.4 Ops/sec
Vanilla JS
14893110.0 Ops/sec
HTML Preparation code:
<script type="text/javascript" src="http://ajax.aspnetcdn.com/ajax/jQuery/jquery-3.1.0.min.js"></script> <div id="testElement" class="testClass"></div> <div id="testElement2" class="testClass"></div> <div id="testElement3" class="notTestClass"></div>
Tests:
jQuery
var el = $(".testClass")[0]; var className = el.className;
Vanilla JS
var el = document.getElementsByClassName('testClass')[0]; var className = el.className;