Run results for: Id vs QuerySelector

Run details:

User agent: Mozilla/5.0 (Linux; Android 8.1.0; Pixel 2 XL Build/OPM2.171019.029.B1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/66.0.3359.158 Mobile Safari/537.36

Browser: Safari 537.36

Operating system: Android 8.1.0

Device Platform: Mobile

Date tested: 5 years ago

Test name	Executions per second
by id	1434799.0 Ops/sec
query	825120.8 Ops/sec

HTML Preparation code:

<div id='test'></div>

Tests:

by id
document.getElementById('test');
query
document.querySelector('#test');

Run results for: Id vs QuerySelector

by id

query