Run results for: clientHeight vs offsetHeight vs window.getComputedStyle

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/94.0.4606.85 YaBrowser/21.11.3.927 Yowser/2.5 Safari/537.36

Browser: Yandex Browser 21

Operating system: Windows

Device Platform: Desktop

Date tested: 2 years ago

Test name	Executions per second
clientHeight	509846.8 Ops/sec
offsetHeight	355521.1 Ops/sec
window.getComputedStyle	288283.2 Ops/sec
Multiple: Only _style	139831.1 Ops/sec
Multiple: _style e clientHeight	195775.8 Ops/sec

HTML Preparation code:

<div id="teste">teste</div>

Script Preparation code:

var teste_n = '123px';
var _style = window.getComputedStyle(document.getElementById('teste'));

Tests:

clientHeight
document.getElementById('teste').clientHeight;
offsetHeight
document.getElementById('teste').offsetHeight;
window.getComputedStyle
parseFloat(_style['height'])
Multiple: Only _style
parseFloat(_style['margin-top']) parseFloat(_style['margin-bottom']) parseFloat(_style['height'])
Multiple: _style e clientHeight
parseFloat(_style['margin-top']) parseFloat(_style['margin-bottom']) document.getElementById('teste').clientHeight;

Run results for: clientHeight vs offsetHeight vs window.getComputedStyle

clientHeight

offsetHeight

window.getComputedStyle

Multiple: Only _style

Multiple: _style e clientHeight