Run results for: getComputedStyle vs window.innerWidth

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/123.0.0.0 Safari/537.36

Browser: Chrome 123

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: 2 years ago

Benchmark engine: Benchmark.js

window.innerWidth

3.4M/s

getComputedStyle

1.8M/s

View exact numbers

Test name	Executions per second
✓ window.innerWidth	3,449,196 Ops/sec
getComputedStyle	1,777,430 Ops/sec

HTML Preparation code:

<style>body {--breakpoint: "md";}</style>

Tests:

getComputedStyle
getComputedStyle(document.body) .getPropertyValue("--breakpoint") .replace(/\W/g, "") === "md"
window.innerWidth
window.innerWidth === 700