HTML Preparation code:
AخA
 
1
<div id="foo" class="folder open filtered"></div>
Tests:
  • className

     
    var p = document.getElementById("foo");
    var i = 1000;
    while (i--) {
    if (p.className.indexOf('folder') != -1)
        p.className = 'folder open'+
            (p.className.indexOf('filtered') != -1 ? 'filtered ' : '')
            +'parent';
    }
  • classList

     
    var p = document.getElementById("foo");
    var i = 1000;
    while (i--) {
      if(p.classList.contains("folder")) {
         p.classList.add('open', 'parent');
        if (p.className.indexOf('filtered') != -1)
          p.classList.add('filtered');
      }
    }
Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Experimental features:

  • Test case name Result
    className
    classList

    Fastest: N/A

    Slowest: N/A

Latest run results:
Run details: (Test run date: 6 years ago)
Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:61.0) Gecko/20100101 Firefox/61.0
Firefox 61 on Ubuntu
View result in a separate tab
Test name Executions per second
className 1104.0 Ops/sec
classList 379.8 Ops/sec