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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=503132" width="100%" height="500px"></iframe>
Run details:
User agent:
Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:122.0) Gecko/20100101 Firefox/122.0
Browser:
Firefox 122
Operating system:
Windows
Device Platform:
Desktop
Date tested:
2 years ago
getElementById
7.7M/s
querySelector
4.1M/s
getElementsByClassName
3.9M/s
querySelector class
3.7M/s
querySelectorAll
1.8M/s
View exact numbers
Test name
Executions per second
✓
getElementById
7,691,434 Ops/sec
querySelector
4,139,755 Ops/sec
getElementsByClassName
3,872,344 Ops/sec
querySelector class
3,722,568 Ops/sec
querySelectorAll
1,773,960 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');