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Run results for:
getElementById vs querySelector ID vs getElementsByClassName vs querySelectorAll ver2
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Embed Benchmark Result
<iframe src="https://measurethat.net/Embed?id=502006" width="100%" height="500px"></iframe>
Run details:
User agent:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.36
Browser:
Chrome 120
Operating system:
Mac OS X 10.15.7
Device Platform:
Desktop
Date tested:
2 years ago
getElementById
12.5M/s
querySelector class
9.0M/s
getElementsByClassName
7.8M/s
querySelector
6.1M/s
querySelectorAll
3.7M/s
View exact numbers
Test name
Executions per second
✓
getElementById
12,453,143 Ops/sec
querySelector class
9,017,732 Ops/sec
getElementsByClassName
7,761,272 Ops/sec
querySelector
6,064,842 Ops/sec
querySelectorAll
3,704,508 Ops/sec
HTML Preparation code:
<div id="test_element_id" class="test_element_class"></div>
Tests:
getElementById
var el = document.getElementById('test_element_id');
querySelector
var el = document.querySelector('#test_element_id');
getElementsByClassName
var el = document.getElementsByClassName('test_element_class')[0];
querySelectorAll
var el = document.querySelectorAll('.test_element_class')[0];
querySelector class
var el = document.querySelector('.test_element_class');