Run results for: querySelector vs getElementsByClassName

Run details:

User agent: Mozilla/5.0 (Android 11; Mobile; rv:138.0) Gecko/138.0 Firefox/138.0

Browser: Firefox Mobile 138

Operating system: Android

Device Platform: Mobile

Date tested: one year ago

Benchmark engine: Benchmark.js

getElementsByClassName

2.7M/s

querySelector

1.7M/s

View exact numbers

Test name	Executions per second
✓ getElementsByClassName	2,735,732 Ops/sec
querySelector	1,720,946 Ops/sec

HTML Preparation code:

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

Tests: