Benchmark: offsetWidth / offsetHeight vs. getBoundingClientRect()

offsetWidth / offsetHeight vs. getBoundingClientRect() (version: 0)

HTML Preparation code:

<div id="el">
  <h2>Lorem ipsum dolor sit amet</h2>
</div>

Script Preparation code:

var el = document.getElementById("el");

Tests:

offsetWidth / offsetHeight (destructured and renamed)
const { offsetWidth: width, offsetHeight: height } = el; const perim = (width + height) * 2;
offsetWidth / offsetHeight (destructured)
const { offsetWidth, offsetHeight } = el; const perim = (offsetWidth + offsetHeight) * 2;
offsetWidth / offsetHeight (simple property access)
const width = el.offsetWidth; const height = el.offsetHeight; const perim = (width + height) * 2;
getBoundingClientRect() (destructured)
const { width, height } = el.getBoundingClientRect(); const perim = (width + height) * 2;
getBoundingClientRect() (simple property access)
const rect = el.getBoundingClientRect(); const width = rect.width; const height = rect.height; const perim = (width + height) * 2;

Rendered benchmark preparation results:

Previous results

Test case name	Result
offsetWidth / offsetHeight (destructured and renamed)
offsetWidth / offsetHeight (destructured)
offsetWidth / offsetHeight (simple property access)
getBoundingClientRect() (destructured)
getBoundingClientRect() (simple property access)

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Latest run results:

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

User agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/124.0.0.0 Safari/537.36

Browser/OS: Chrome 124 on Linux

Test name	Executions per second
offsetWidth / offsetHeight (destructured and renamed)	1091148.0 Ops/sec
offsetWidth / offsetHeight (destructured)	1105398.0 Ops/sec
offsetWidth / offsetHeight (simple property access)	1031880.0 Ops/sec
getBoundingClientRect() (destructured)	1404569.0 Ops/sec
getBoundingClientRect() (simple property access)	1365942.0 Ops/sec