Run results for: querySelectorAll vs. getElementsByClassName

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/140.0.0.0 Safari/537.36

Browser: Chrome 140

Operating system: Windows

Device Platform: Desktop

Date tested: one year ago

Benchmark engine: Benchmark.js

getElementsByClassName

19.2M/s

querySelectorAll

5.1M/s

View exact numbers

Test name	Executions per second
✓ getElementsByClassName	19,214,846 Ops/sec
querySelectorAll	5,062,510 Ops/sec

HTML Preparation code:

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

Tests: