Run results for: querySelectorAll versus getElementsByClassName

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/143.0.0.0 Safari/537.36

Browser: Chrome 143

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: 6 months ago

querySelectorAll

11.7M/s

getElementsByClassName

5.5M/s

View exact numbers

Test name	Executions per second
✓ querySelectorAll	11,741,061 Ops/sec
getElementsByClassName	5,513,700 Ops/sec

HTML Preparation code:

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

Tests: