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Run results for: clientWidth / clientHeight vs. getBoundingClientRect() vs. getComputedStyle

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Run details:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/134.0.0.0 Safari/537.36 Edg/134.0.0.0
Chrome 134
Mac OS X 10.15.7
Desktop
one month ago
Test name Executions per second
clientWidth / clientHeight (destructured and renamed) 1782714.9 Ops/sec
clientWidth / clientHeight (destructured) 1775377.6 Ops/sec
clientWidth / clientHeight (simple property access) 1790556.4 Ops/sec
getBoundingClientRect() (destructured) 2379475.2 Ops/sec
getBoundingClientRect() (simple property access) 2412465.0 Ops/sec
getComputedStyle 875991.0 Ops/sec
HTML Preparation code:
AخA
 
1
<div id="el">
2
  <h2>Lorem ipsum dolor sit amet</h2>
3
</div>
Script Preparation code:
 
var el = document.getElementById("el");
Tests:

  • clientWidth / clientHeight (destructured and renamed)

    ​x
     
    const { clientWidth: width, clientHeight: height } = el;
    ​
    const perim = (width + height) * 2;

  • clientWidth / clientHeight (destructured)

     
    const { clientWidth, clientHeight } = el;
    ​
    const perim = (clientWidth + clientHeight) * 2;

  • clientWidth / clientHeight (simple property access)

     
    const width = el.clientWidth;
    const height = el.clientHeight;
    ​
    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;

  • getComputedStyle

     
    const { height, width } = getComputedStyle(el);
    ​
    const perim = (width + height) * 2;