Toggle navigation
MeasureThat
.net
Create a benchmark
Tools
Feedback
FAQ
Register
Log In
Run results for:
getElementById vs querySelector ID vs getElementsByClassName vs querySelectorAll
Go to the benchmark
Embed
Embed Benchmark Result
<iframe src="https://measurethat.net/Embed?id=529394" width="100%" height="500px"></iframe>
Run details:
User agent:
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/125.0.0.0 Safari/537.36
Browser:
Chrome 125
Operating system:
Linux
Device Platform:
Desktop
Date tested:
2 years ago
getElementById
3.6M/s
getElementsByClassName
2.8M/s
querySelector class
2.5M/s
querySelector
2.1M/s
querySelectorAll
1.1M/s
View exact numbers
Test name
Executions per second
✓
getElementById
3,639,498 Ops/sec
getElementsByClassName
2,787,169 Ops/sec
querySelector class
2,549,672 Ops/sec
querySelector
2,112,603 Ops/sec
querySelectorAll
1,124,596 Ops/sec
HTML Preparation code:
<div id="test_element_id" class="test_element_class"></div>
Tests:
getElementById
var el = document.getElementById('test_element_id'); var className = el.className;
querySelector
var el = document.querySelector('#test_element_id'); var className = el.className;
getElementsByClassName
var el = document.getElementsByClassName('test_element_class')[0]; var className = el.className;
querySelectorAll
var el = document.querySelectorAll('.test_element_class')[0]; var className = el.className;
querySelector class
var el = document.querySelector('.test_element_class'); var className = el.className;