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Run results for:
querySelector vs getElementById
Test the performance of the default Javascript querySelector vs the getElementById method.
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Embed Benchmark Result
<iframe src="https://measurethat.net/Embed?id=600636" 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/135.0.0.0 Safari/537.36
Browser:
Chrome 135
Operating system:
Windows
Device Platform:
Desktop
Date tested:
one year ago
Test name
Executions per second
querySelector
6284561.0 Ops/sec
getElementsByClassName
9684943.0 Ops/sec
HTML Preparation code:
<html> <body> <div class="foo" id="test2"></div> <div class="foo2" id="test"></div> </body> </html>
Tests:
querySelector
document.querySelector(".foo");
getElementsByClassName
document.getElementsByClassName('foo');