Run results for: querySelector vs getElementsByName vs getElementById vs getElementsByClassName - MeasureThat.net

Run details:

User agent: Mozilla/5.0 (X11; Linux x86_64; rv:98.0) Gecko/20100101 Firefox/98.0

Browser: Firefox 98

Operating system: Linux

Device Platform: Desktop

Date tested: 3 years ago

Test name	Executions per second
querySelector	2104162.5 Ops/sec
getElementsByName	4410329.5 Ops/sec
getElementById	4508087.0 Ops/sec
getElementsByClassName	4286256.5 Ops/sec

HTML Preparation code:

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

Tests:

querySelector
document.querySelector('#test')
getElementsByName
document.getElementsByName('div[name="#test"]')
getElementById
document.getElementById('test')
getElementsByClassName
document.getElementsByClassName(".test")