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Run results for:
queryselector (from document or from parent) vs getelementbyid
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Run details:
User agent:
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/142.0.0.0 Safari/537.36
Browser:
Chrome 142
Operating system:
Linux
Device Platform:
Desktop
Date tested:
4 months ago
Test name
Executions per second
document.querySelector
7033170.5 Ops/sec
parent.querySelector
18691258.0 Ops/sec
document.getElementById
46822976.0 Ops/sec
HTML Preparation code:
<div id='abc'> <div id='abcd'> <div id='abcde'> <div id='abcdefg'> <div id='abcdefghi'> </div> </div> </div> </div> </div> <div id='abcdef'> <div id='abcdefgh'> </div> </div>
Script Preparation code:
const parent = document.getElementById('abcdefg');
Tests:
document.querySelector
document.querySelector('#abcdefghi');
parent.querySelector
parent.querySelector('#abcdefghi');
document.getElementById
document.getElementById('abcdefghi');