Run results for: jQuery vs getElementById vs querySelector

Run details:

User agent: Mozilla/5.0 (Linux; U; Android 11; en-gb; Mi 9 SE Build/RKQ1.200826.002) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/100.0.4896.127 Mobile Safari/537.36 XiaoMi/MiuiBrowser/13.19.2-gn

Browser: Chrome Mobile 100

Operating system: Android

Device Platform: Mobile

Date tested: one year ago

Test name	Executions per second
jQuery	615617.8 Ops/sec
getElementById	1649918.6 Ops/sec
querySelector	695791.8 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");

Run results for: jQuery vs getElementById vs querySelector

Comparing speed of getting element by id with jQuery vs Vanilla JS with getElementById and querySelector

jQuery

getElementById

querySelector