Benchmark: Rewrite multiple classes (className vs. setAttribute vs. classList)

HTML Preparation code:

<div id="foo" class="a b c"></div>

Tests:

className
var element = document.getElementById("foo"); var i = 1000; while (i--) { element.className = "1 2 3"; }
setAttribute
var element = document.getElementById("foo"); var i = 1000; while (i--) { element.setAttribute("class", "1 2 3"); }
classList
var element = document.getElementById("foo"); var i = 1000; while (i--) { element.classList.remove(...element.classList); element.classList.add("1", "2", "3"); }

Rendered benchmark preparation results:

Previous results

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Latest run results:

Run details: (Test run date: 6 months ago)

User agent: Mozilla/5.0 (X11; Linux x86_64; rv:109.0) Gecko/20100101 Firefox/119.0

Browser/OS: Firefox 119 on Linux

Rewrite multiple classes (className vs. setAttribute vs. classList) (version: 0)