Run results for: classList vs 2 classList

Run details:

User agent: Mozilla/5.0 (X11; Fedora; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/69.0.3497.100 Safari/537.36

Browser: Chrome 69

Operating system: Fedora

Device Platform: Desktop

Date tested: 5 years ago

Test name	Executions per second
2 classList	1020.5 Ops/sec
classList	1038.4 Ops/sec

HTML Preparation code:

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

Tests:

2 classList
var element = document.getElementById("foo"); var i = 1000; while (i--) { element.classList.add("bar", "booat_show"); }
classList
var element = document.getElementById("foo"); var i = 1000; while (i--) { element.classList.add("bar"); }