Run results for: selector api

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/144.0.0.0 Safari/537.36

Browser: Chrome 144

Operating system: Windows

Device Platform: Desktop

Date tested: 3 months ago

Test name	Executions per second
getElementById	27999842.0 Ops/sec
getElementsByClassName	13234137.0 Ops/sec
querySelector(ID)	7728255.5 Ops/sec
querySelector(class)	14535020.0 Ops/sec
querySelectorAll(ID)	3664718.2 Ops/sec
querySelectorAll(class)	6166144.5 Ops/sec
exposed under the window object	8456288.0 Ops/sec

HTML Preparation code:

<div id="helloid" class="hello-class">hello</div>

Tests:

getElementById
var el = document.getElementById("helloid") var className = el.className;
getElementsByClassName
var el = document.getElementsByClassName("hello-class") var className = el.className;
querySelector(ID)
var el = document.querySelector("#helloid") var className = el.className;
querySelector(class)
var el = document.querySelector(".hello-class") var className = el.className;
querySelectorAll(ID)
var el = document.querySelectorAll("#helloid") var className = el[0].className;
querySelectorAll(class)
var el = document.querySelectorAll(".hello-class") var className = el[0].className;
exposed under the window object
var className = helloid.className;