Run results for: querySelector vs querySelectorAll vs getElementsByClassName vs querySelector (ID) vs getElementsByID

Run details:

User agent: Mozilla/5.0 (iPhone; CPU iPhone OS 15_5 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) GSA/200.0.429445193 Mobile/15E148 Safari/604.1

Browser: Mobile Safari 15

Operating system: iOS 15.5

Device Platform: Mobile

Date tested: one year ago

Test name	Executions per second
querySelector	2071441.0 Ops/sec
querySelectorAll	1403824.0 Ops/sec
getElementsByClassName	2486637.0 Ops/sec
querySelector (ID)	1838958.0 Ops/sec
getElementsByID	2536630.0 Ops/sec

HTML Preparation code:

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

Tests:

querySelector
document.querySelector(".test")
querySelectorAll
document.querySelectorAll(".test")
getElementsByClassName
document.getElementsByClassName(".test")
querySelector (ID)
document.querySelector("#test")
getElementsByID
document.getElementById("test")