Run results for: classList.contains() vs closest() performance

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/95.0.4638.69 Safari/537.36

Browser: Chrome 95

Operating system: Windows

Device Platform: Desktop

Date tested: 3 years ago

Test name	Executions per second
contains	4252306.0 Ops/sec
closest	4965393.5 Ops/sec

HTML Preparation code:

<div class='div1'>
  <div class='div2'>
    <div class='div3'>
    </div>
  </div>
</div>

Script Preparation code:

var box = document.querySelector('.div1')
var clicked = document.querySelector('.div3')

Tests: