Run results for: querySelector vs getElementsByClassName

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:128.0) Gecko/20100101 Firefox/128.0

Browser: Firefox 128

Operating system: Windows

Device Platform: Desktop

Date tested: one year ago

Benchmark engine: Benchmark.js

getElementsByClassName

4.3M/s

querySelector

2.0M/s

View exact numbers

Test name	Executions per second
✓ getElementsByClassName	4,329,536 Ops/sec
querySelector	2,047,846 Ops/sec

HTML Preparation code:

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

Tests: