Run results for: clear element using replaceChildren vs removeChild

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:151.0) Gecko/20100101 Firefox/151.0

Browser: Firefox 151

Operating system: Windows

Device Platform: Desktop

Date tested: one month ago

removeChild

1464.6M/s

replaceChildren

5.3M/s

View exact numbers

Test name	Executions per second
✓ removeChild	1,464,566,400 Ops/sec
replaceChildren	5,306,673 Ops/sec

HTML Preparation code:

<div id="container">
  <div>Foo</div>
  <div>Bar</div>
</div>

Script Preparation code:

const container = document.getElementById("container");

Tests:

removeChild
while (container.firstChild) { container.removeChild(container.firstChild); }
replaceChildren
container.replaceChildren()