Run results for: className vs. getAttribute vs. classList 3

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/109.0.0.0 Safari/537.36

Browser: Chrome 109

Operating system: Windows

Device Platform: Desktop

Date tested: 2 years ago

Benchmark engine: Benchmark.js

hasAttribute

230/s

getAtttr

219/s

classList

211/s

View exact numbers

HTML Preparation code:

<div id="foo" class="wl" wl='true'></div>

Tests:

hasAttribute
var element = document.getElementById("foo"); var i = 500; while (i--) { console.log(element.hasAttribute('wl')); }
classList
var element = document.getElementById("foo"); var i = 500; while (i--) { console.log(element.classList.contains('wl')); }
getAtttr
var element = document.getElementById("foo"); var i = 500; while (i--) { console.log(element.getAttribute('wl') === 'true'); }