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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=614785" width="100%" height="500px"></iframe>
Run details:
User agent:
Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:141.0) Gecko/20100101 Firefox/141.0
Browser:
Firefox 141
Operating system:
Windows
Device Platform:
Desktop
Date tested:
one year ago
clientHeight
1K/s
getBoundingClientRect
588/s
getComputedStyle
295/s
View exact numbers
Test name
Executions per second
✓
clientHeight
1,115 Ops/sec
getBoundingClientRect
588 Ops/sec
getComputedStyle
295 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; }