Run results for: querySelector vs getElementsByClassName

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:109.0) Gecko/20100101 Firefox/118.0

Browser: Firefox 118

Operating system: Windows

Device Platform: Desktop

Date tested: 2 years ago

Benchmark engine: Benchmark.js

getElementsByClassName

8.1M/s

querySelector

4.3M/s

View exact numbers

Test name	Executions per second
✓ getElementsByClassName	8,125,064 Ops/sec
querySelector	4,317,544 Ops/sec

HTML Preparation code:

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

Tests: