Run results for: clientHeight vs offsetHeight vs getComputedStyle

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/16.0 Safari/605.1.15

Browser: Safari 16

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: 2 years ago

Test name	Executions per second
clientHeight	5718384.5 Ops/sec
offsetHeight	5777246.5 Ops/sec
window.getComputedStyle	2501125.0 Ops/sec
Multiple: Only _style	1434467.8 Ops/sec
Multiple: _style e clientHeight	1555098.0 Ops/sec

HTML Preparation code:

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

Tests:

clientHeight
document.getElementById('teste').clientHeight;
offsetHeight
document.getElementById('teste').offsetHeight;
window.getComputedStyle
parseFloat(window.getComputedStyle(document.getElementById('teste'))['height'])
Multiple: Only _style
let style1 = window.getComputedStyle(document.getElementById('teste')) parseFloat(style1['margin-top']) parseFloat(style1['margin-bottom']) parseFloat(style1['height'])
Multiple: _style e clientHeight
let style2 = window.getComputedStyle(document.getElementById('teste')) parseFloat(style2['margin-top']) parseFloat(style2['margin-bottom']) document.getElementById('teste').clientHeight;