Benchmark: className vs. setAttribute vs. classList 2

HTML Preparation code:

<div id="foo"></div>

Tests:

className
var element = document.getElementById("foo"); var i = 1000; var name = 'bar' var rgx = new RegExp('(\\s|^)' + name + '(\\s|$)'); var match = element.className.match( rgx ); while (i--) { if(! element.className.match( rgx ) ){ element.className += " "+name; } }
setAttribute
var element = document.getElementById("foo"); var i = 1000; while (i--) { element.setAttribute("class", "bar"); }
classList
var element = document.getElementById("foo"); var i = 1000; while (i--) { element.classList.add("bar"); }

Rendered benchmark preparation results:

Previous results

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Latest run results:

Run details: (Test run date: one year ago)

User agent: Mozilla/5.0 (X11; CrOS x86_64 15054.98.0) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/106.0.0.0 Safari/537.36

Browser/OS: Chrome 106 on Chrome OS 15054.98.0

className vs. setAttribute vs. classList 2 (version: 0)