Run details:
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/103.0.0.0 Safari/537.36
Chrome 103
Linux
Desktop
2 years ago
Test name Executions per second
getComputedStyle 85.5 Ops/sec
getBoundingClientRect 51.8 Ops/sec
HTML Preparation code:
AخA
 
1
<div id="foo"></div>
Tests:
  • getComputedStyle

    x
     
    var i = 5000;
    while (i--) {
        checkDisplay('foo');
    }
    function checkDisplay(id) {
        return window.getComputedStyle(document.getElementById(id), null).getPropertyValue("display") === "none";
    }
  • getBoundingClientRect

     
    var i = 5000;
    while (i--) {
        checkDisplay('foo');
    }
    function checkDisplay(id) {
        return document.getElementById(id).getBoundingClientRect().width === 0;
    }