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Run results for:
Get precise height : getComputedStyle vs getBoundingClientRect vs innerHeight
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<iframe src="https://measurethat.net/Embed?id=594382" width="100%" height="500px"></iframe>
Run details:
User agent:
Mozilla/5.0 (iPhone; CPU iPhone OS 17_7_1 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) CriOS/134.0.6998.99 Mobile/15E148 Safari/604.1
Browser:
Chrome Mobile iOS 134
Operating system:
iOS 17.7.1
Device Platform:
Mobile
Date tested:
one year ago
Test name
Executions per second
getComputedStyle
884.2 Ops/sec
getBoundingClientRect
898.3 Ops/sec
clientHeight
3453.2 Ops/sec
HTML Preparation code:
<div id="foo"></div>
Tests:
getComputedStyle
var i = 5000; while (i--) { checkDisplay('foo'); } function checkDisplay(id) { return window.getComputedStyle(document.getElementById(id), null).getPropertyValue("height").slice(0, -2); }
getBoundingClientRect
var i = 5000; while (i--) { checkDisplay('foo'); } function checkDisplay(id) { return document.getElementById(id).getBoundingClientRect().height; }
clientHeight
var i = 5000; while (i--) { checkDisplay('foo'); } function checkDisplay(id) { return document.getElementById(id).clientHeight; }