Run results for: className vs. setAttribute vs. classList 2

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/66.0.3359.181 Safari/537.36

Browser: Chrome 66

Operating system: Windows

Device Platform: Desktop

Date tested: 6 years ago

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"); }