Benchmark: className.includes vs classList.contains

HTML Preparation code:

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

Script Preparation code:

var el = document.getElementById("test")

Tests:

Rendered benchmark preparation results:

Previous results

Test case name	Result
className.includes
classList.contains

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Latest run results:

Run details: (Test run date: 2 years ago)

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/96.0.4664.55 Safari/537.36

Browser/OS: Chrome 96 on Mac OS X 10.15.7

Test name	Executions per second
className.includes	7762636.0 Ops/sec
classList.contains	8179152.0 Ops/sec

className.includes vs classList.contains (version: 0)