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Run results for:
ClassName.indexOf and ClassList.contains
Fastest way to find if class exists in JavaScript
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Embed Benchmark Result
<iframe src="https://measurethat.net/Embed?id=510761" width="100%" height="500px"></iframe>
Run details:
User agent:
Mozilla/5.0 (X11; Linux x86_64; rv:109.0) Gecko/20100101 Firefox/115.0
Browser:
Firefox 115
Operating system:
Linux
Device Platform:
Desktop
Date tested:
2 years ago
Benchmark engine:
Benchmark.js
ClassName
89/s
ClassList
69/s
View exact numbers
Test name
Executions per second
✓
ClassName
89 Ops/sec
ClassList
69 Ops/sec
HTML Preparation code:
<div id='test'></div>
Script Preparation code:
var test = document.getElementById('test');
Tests:
ClassName
for(i=0; i<100000; i++){ test.className.indexOf('animated') > -1 }
ClassList
for(i=0; i<100000; i++){ test.classList.contains('animated'); }