Run results for: querySelectorAll vs. getElementsByClassName with forEach

Run details:

User agent: Mozilla/5.0 (Linux; Android 10; K) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/126.0.0.0 Mobile Safari/537.36

Browser: Chrome Mobile 126

Operating system: Android

Device Platform: Mobile

Date tested: 2 years ago

getElementsByClassName

604K/s

querySelectorAll

193K/s

View exact numbers

Test name	Executions per second
✓ getElementsByClassName	604,045 Ops/sec
querySelectorAll	193,212 Ops/sec

HTML Preparation code:

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

Tests:

querySelectorAll
document.querySelectorAll(".test").forEach(x=>x.style.color='red')
getElementsByClassName
Array.from(document.getElementsByClassName(".test")).forEach(x=>x.style.color='red')