Run results for: querySelectorAll vs. getElementsByClassName

Run details:

User agent: Mozilla/5.0 (X11; Linux x86_64; rv:146.0) Gecko/20100101 Firefox/146.0

Browser: Firefox 146

Operating system: Linux

Device Platform: Desktop

Date tested: 9 months ago

Benchmark engine: Benchmark.js

getElementsByClassName

7.9M/s

querySelectorAll

2.4M/s

View exact numbers

Test name	Executions per second
✓ getElementsByClassName	7,905,365 Ops/sec
querySelectorAll	2,436,097 Ops/sec

HTML Preparation code:

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

Tests: