Run results for: querySelector vs getElementsByClassName My

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/133.0.0.0 Safari/537.36

Browser: Chrome 133

Operating system: Windows

Device Platform: Desktop

Date tested: one year ago

Benchmark engine: Benchmark.js

querySelector

9.3M/s

getElementsByClassName

5.2M/s

View exact numbers

Test name	Executions per second
✓ querySelector	9,306,032 Ops/sec
getElementsByClassName	5,172,568 Ops/sec

HTML Preparation code:

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

Tests: