Benchmark: cached window.getComputedStyle vs. getBoundingClientRect vs clientHeight

HTML Preparation code:

<div id="foo"></div>

Tests:

getComputedStyle
var i = 5000; var computedStyle; while (i--) { checkDisplay('foo'); } function checkDisplay(id) { computedStyle = computedStyle || window.getComputedStyle(document.getElementById(id), null); return computedStyle.getPropertyValue("display") === "none"; }
getBoundingClientRect
var i = 5000; while (i--) { checkDisplay('foo'); } function checkDisplay(id) { return document.getElementById(id).getBoundingClientRect().width === 0; }
clientheight
var i = 5000; while (i--) { checkDisplay('foo'); } function checkDisplay(id) { return document.getElementById(id).clientHeight === 0; }

Rendered benchmark preparation results:

Previous results

Latest run results:

Run details: (Test run date: 2 months ago)

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:151.0) Gecko/20100101 Firefox/151.0

Browser/OS: Firefox 151 on Mac OS X 10.15

getComputedStyle

1K/s

clientheight

716/s

getBoundingClientRect

398/s

View exact numbers

cached window.getComputedStyle vs. getBoundingClientRect vs clientHeight (version: 1)