Toggle navigation
MeasureThat.net
Create a benchmark
Tools
Feedback
FAQ
Register
Log In
Run results for:
ClassName.indexOf and ClassList.contains
Fastest way to find if class exists in JavaScript
Go to the benchmark
Embed
Embed Benchmark Result
<iframe src="https://measurethat.net/Embed?id=539870" 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/127.0.0.0 Safari/537.36
Browser:
Chrome 127
Operating system:
Mac OS X 10.15.7
Device Platform:
Desktop
Date tested:
one year ago
Test name
Executions per second
ClassName
81.7 Ops/sec
ClassList
50.3 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'); }