Run results for: appendChild cycles vs documentFragment

Run details:

User agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/119.0.0.0 Safari/537.36

Browser: Chrome 119

Operating system: Linux

Device Platform: Desktop

Date tested: one month ago

Test name	Executions per second
appendChild	94107.0 Ops/sec
append documentFragment	80614.9 Ops/sec
appendChild w/ requestAnimationFrame	1207435.5 Ops/sec
append documentFragment w/ requestAnimationFrame	126065.2 Ops/sec

HTML Preparation code:

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

Script Preparation code:

var container = document.getElementById('container');
var childrenAmount = 20;
var childrenToAppend = [];

for(let i = 0; i < childrenAmount; i++) {
	childrenToAppend.push(document.createElement('div'))
}

Tests:

appendChild
childrenToAppend.forEach(child => container.appendChild(child));
append documentFragment
var fragment = document.createDocumentFragment(); childrenToAppend.forEach(child => fragment.appendChild(child)); container.appendChild(fragment)
appendChild w/ requestAnimationFrame
requestAnimationFrame(() => { childrenToAppend.forEach(child => container.appendChild(child)); })
append documentFragment w/ requestAnimationFrame
var fragment = document.createDocumentFragment(); childrenToAppend.forEach(child => fragment.appendChild(child)); requestAnimationFrame(() => { container.appendChild(fragment) })

Run results for: appendChild cycles vs documentFragment

appendChild

append documentFragment

appendChild w/ requestAnimationFrame

append documentFragment w/ requestAnimationFrame