Run results for: className vs setAttribute vs classList

Run details:

User agent: Mozilla/5.0 (Linux; Android 8.1.0; SNE-LX1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/76.0.3809.111 Mobile Safari/537.36

Browser: Chrome Mobile 76

Operating system: Android 8.1.0

Device Platform: Mobile

Date tested: 4 years ago

HTML Preparation code:

<div id="foo"></div>

Script Preparation code:

var element = document.getElementById('foo');

Tests:

className
var i = 1000; while (i--) { element.className = "bar"; }
setAttribute
var i = 1000; while (i--) { element.setAttribute("class", "bar"); }
classList
var i = 1000; while (i--) { element.classList.add("bar"); }