Run results for: querySelector vs getElementById

Run details:

User agent: Mozilla/5.0 (iPhone; CPU iPhone OS 18_0 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/18.0 Mobile/15E148 Safari/604.1

Browser: Mobile Safari 18

Operating system: iOS 18.0

Device Platform: Mobile

Date tested: one year ago

Benchmark engine: Benchmark.js

getElementById

56.2M/s

querySelector

6.6M/s

View exact numbers

Test name	Executions per second
✓ getElementById	56,197,336 Ops/sec
querySelector	6,608,406 Ops/sec

HTML Preparation code:

<div id="test"></div>

Tests: