Run results for: document.querySelectorAll vs document.body.querySelectorAll

Run details:

User agent: Mozilla/5.0 (Linux; Android 10; K) AppleWebKit/537.36 (KHTML, like Gecko) SamsungBrowser/28.0 Chrome/130.0.0.0 Mobile Safari/537.36

Browser: Chrome Mobile 130

Operating system: Android

Device Platform: Mobile

Date tested: 9 months ago

getElementsByClassName

4.4M/s

querySelectorAll

4.2M/s

View exact numbers

Test name	Executions per second
✓ getElementsByClassName	4,372,536 Ops/sec
querySelectorAll	4,209,719 Ops/sec

HTML Preparation code:

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

Tests: