Toggle navigation
MeasureThat
.net
Create a benchmark
Tools
Feedback
Feature Requests
FAQ
Register
Log In
Run results for:
setAttribute(...) vs. classList.add(...) vs classList.value vs className
Go to the benchmark
Embed
Embed Benchmark Result
<iframe src="https://measurethat.net/Embed?id=572759" width="100%" height="500px"></iframe>
Run details:
User agent:
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.0.0 Safari/537.36
Browser:
Chrome 131
Operating system:
Linux
Device Platform:
Desktop
Date tested:
one year ago
Benchmark engine:
Benchmark.js
ClassName
93K/s
classList.value
73K/s
setAttribute(...)
34K/s
classList.add(...)
33K/s
View exact numbers
Test name
Executions per second
✓
ClassName
92,811 Ops/sec
classList.value
72,617 Ops/sec
setAttribute(...)
34,001 Ops/sec
classList.add(...)
32,725 Ops/sec
HTML Preparation code:
<div id="foo"></div>
Tests:
setAttribute(...)
var element = document.getElementById("foo"); var i = 100; while (i--) { element.setAttribute("class", "bar"); }
classList.add(...)
var element = document.getElementById("foo"); var i = 100; while (i--) { element.classList.add("bar"); }
classList.value
var element = document.getElementById("foo"); var i = 100; while (i--) { element.classList.value = "bar"; }
ClassName
var element = document.getElementById("foo"); var i = 100; while (i--) { element.className = "bar"; }