Run results for: clientHeight + clientWidth vs getComutedStyle()

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/115.0.0.0 Safari/537.36 Edg/115.0.1901.181

Browser: Chrome 115

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: one year ago

Test name	Executions per second
clientHeight + clientWidth	841902.6 Ops/sec
computedStyle	530955.4 Ops/sec

HTML Preparation code:

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

Script Preparation code:

var element = document.getElementById('test');

Tests:

clientHeight + clientWidth
element.clientHeight; element.clientWidth;
computedStyle
var computedStyle = window.getComputedStyle(element); parseFloat(computedStyle.height); parseFloat(computedStyle.widht);