Run results for: HTML manipulation with and without requestAnimationFrame

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/130.0.0.0 Safari/537.36

Browser: Chrome 130

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: one year ago

Without requestAnimationFrame

11.3M/s

With requestAnimationFrame

3.4M/s

View exact numbers

Test name	Executions per second
✓ Without requestAnimationFrame	11,287,557 Ops/sec
With requestAnimationFrame	3,350,670 Ops/sec

HTML Preparation code:

<div id='messages'></div>

Script Preparation code:

const html = [];
for(i=0; i<1000; i++) {
	html.push("<span>Text</span>");
}
document.getElementById("messages").insertAdjacentHTML('beforeend', html)

Tests:

With requestAnimationFrame
const messagesDiv = document.getElementById("messages"); function removeChildWithAnimation() { if (messagesDiv.firstChild) { messagesDiv.removeChild(messagesDiv.firstChild); requestAnimationFrame(removeChildWithAnimation); // Call recursively until all children are removed } } requestAnimationFrame(removeChildWithAnimation);
Without requestAnimationFrame
const messagesDiv = document.getElementById("messages"); while (messagesDiv.firstChild) { messagesDiv.removeChild(messagesDiv.firstChild); }