Run details:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/108.0.0.0 YaBrowser/23.1.2.978 Yowser/2.5 Safari/537.36
Yandex Browser 23
Mac OS X 10.15.7
Desktop
one year ago
Test name Executions per second
getElementById 1537.8 Ops/sec
querySelector 77.8 Ops/sec
HTML Preparation code:
AخA
 
1
<div id="div"></div>
Script Preparation code:
 
div.innerHTML = Array(1000).fill(0).map((el, i) => `<div id="id${i}" class="test${i}"></div>`)
Tests:
  • getElementById

     
    Array(1000).fill(0).map((el, i) =>  document.getElementById(`id${i}`).className)
  • querySelector

     
    Array(1000).fill(0).map((el, i) =>  document.querySelector(`#id${i}`).className)