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Run results for:
getElementById VS querySelector (simple comparison)
A simple comparison of performance between these two methods. (Medium, @benlmsc)
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<iframe src="https://measurethat.net/Embed?id=595929" width="100%" height="500px"></iframe>
Run details:
User agent:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:138.0) Gecko/20100101 Firefox/138.0
Browser:
Firefox 138
Operating system:
Mac OS X 10.15
Device Platform:
Desktop
Date tested:
one year ago
The method getElementById()
10.7M/s
The method querySelector()
6.9M/s
View exact numbers
Test name
Executions per second
✓
The method getElementById()
10,698,608 Ops/sec
The method querySelector()
6,877,686 Ops/sec
HTML Preparation code:
<div id="example"></div>
Tests:
The method getElementById()
document.getElementById("example");
The method querySelector()
document.querySelector("#example");