Run results for: className.includes vs classList.contains

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; WOW64; Trident/7.0; Touch; rv:11.0) like Gecko

Browser: IE 11

Operating system: Windows

Device Platform: Desktop

Date tested: 2 years ago

Test name	Executions per second
className.includes	0.0 Ops/sec
classList.contains	2451931.0 Ops/sec

HTML Preparation code:

<div id="test" class="class1 class2 class3"></div>

Script Preparation code:

var el = document.getElementById("test")

Tests: