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Run results for:
jQuery vs getElementById vs querySelector
Comparing speed of getting element by id with jQuery vs Vanilla JS with getElementById and querySelector
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<iframe src="https://measurethat.net/Embed?id=493342" width="100%" height="500px"></iframe>
Run details:
User agent:
Mozilla/5.0 (iPhone; CPU iPhone OS 17_1 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/17.1 Mobile/15E148 Safari/604.1
Browser:
Mobile Safari 17
Operating system:
iOS 17.1
Device Platform:
Mobile
Date tested:
2 years ago
Test name
Executions per second
jQuery
5813862.5 Ops/sec
getElementById
13169415.0 Ops/sec
querySelector
5698789.0 Ops/sec
HTML Preparation code:
<script src="http://ajax.aspnetcdn.com/ajax/jQuery/jquery-3.1.0.min.js"></script> <div id="testElement" class="test class list classes"></div>
Tests:
jQuery
var el = $("#testElement")[0];
getElementById
var el = document.getElementById('testElement');
querySelector
var el = document.querySelector("#testElement");