MeasureThat.net

Run results for: classList.contains VS className.includes

?. x10000

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Run details:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/116.0.0.0 Safari/537.36
Chrome 116
Mac OS X 10.15.7
Desktop
one year ago
Test name Executions per second
className.includes 7033.0 Ops/sec
classList.contains 1399.7 Ops/sec
HTML Preparation code:
AخA
 
1
<div id="foo" class="test"></div>
Tests:

  • className.includes

     
    let el = document.getElementById("foo"), i = 10000;
    while (i--) {
        el.className?.includes("test");
    }

  • classList.contains

     
    let el = document.getElementById("foo"), i = 10000;
    while (i--) {
        el.classList?.contains("test");
    }