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Run results for:
replaceChild vs replaceChildren vs documentFragment more nodes
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Embed Benchmark Result
<iframe src="https://measurethat.net/Embed?id=601402" width="100%" height="500px"></iframe>
Run details:
User agent:
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/135.0.0.0 Safari/537.36
Browser:
Chrome 135
Operating system:
Windows
Device Platform:
Desktop
Date tested:
one year ago
Test name
Executions per second
replaceChild
2321757.8 Ops/sec
replaceChildren
623221.1 Ops/sec
append documentFragment
437948.7 Ops/sec
HTML Preparation code:
<div id="container"></div>
Script Preparation code:
var elements = [document.createElement('div'), document.createElement('div'),document.createElement('div'), document.createElement('div'),document.createElement('div'), document.createElement('div'), document.createElement('div'), document.createElement('div')]; var fragment = document.createDocumentFragment(); var container = document.getElementById('container'); elements.forEach(element => fragment.appendChild(element)); container.appendChild(fragment);
Tests:
replaceChild
var changeIndex = 1; elements[changeIndex] = document.createElement('div'); container.replaceChild(elements[changeIndex], container.children[changeIndex]);
replaceChildren
var changeIndex = 1; elements[changeIndex] = document.createElement('div'); container.replaceChildren(elements)
append documentFragment
var changeIndex = 1; var newChildren = document.createDocumentFragment(); elements[changeIndex] = document.createElement('div'); elements.forEach(element => newChildren.appendChild(element)); while(container.firstChild) { container.firstChild.remove(); } container.appendChild(newChildren)