Run results for: querySelectorAll foreach vs getElementsByClassName [].forEach.call() 2

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:121.0) Gecko/20100101 Firefox/121.0

Browser: Firefox 121

Operating system: Windows

Device Platform: Desktop

Date tested: 2 years ago

getElementsByClassName [].forEach.call()

1.2M/s

Array.prototype

1.2M/s

querySelectorAll foreach

959K/s

Array.from

636K/s

View exact numbers

Test name	Executions per second
✓ getElementsByClassName [].forEach.call()	1,207,203 Ops/sec
Array.prototype	1,184,345 Ops/sec
querySelectorAll foreach	959,233 Ops/sec
Array.from	635,580 Ops/sec

HTML Preparation code:

<div class="test"></div>
<div class="test"></div>
<div class="test"></div>
<div class="test"></div>
<div class="test"></div>
<div class="test"></div>
<div class="test"></div>
<div class="test"></div>
<div class="test"></div>

Tests:

querySelectorAll foreach
var test = document.querySelectorAll(".test"); test.forEach(el => { var t = el; });
getElementsByClassName [].forEach.call()
var test = document.getElementsByClassName("test"); [].forEach.call(test, el => { var t = el; });
Array.prototype
var test = document.getElementsByClassName("test"); Array.prototype.forEach.call(test, el => { var t = el; });
Array.from
var test = document.querySelectorAll(".test"); Array.from(test).forEach(el => { var t = el; });