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Run results for:
querySelector vs getElementById & getElementsByClassName
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Run details:
User agent:
Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:141.0) Gecko/20100101 Firefox/141.0
Browser:
Firefox 141
Operating system:
Windows
Device Platform:
Desktop
Date tested:
9 months ago
Test name
Executions per second
query selector
5618071.0 Ops/sec
id & class
13302060.0 Ops/sec
HTML Preparation code:
<div id = "test"><div class="test"></div></div>
Tests:
query selector
document.querySelector('#test .test')
id & class
document.getElementById('test').getElementsByClassName('test')