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Run results for:
JS: append vs appendChild multiple nodes
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Embed Benchmark Result
<iframe src="https://measurethat.net/Embed?id=598092" 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 Edg/135.0.0.0
Browser:
Chrome 135
Operating system:
Windows
Device Platform:
Desktop
Date tested:
one year ago
appendChild
3K/s
append
3K/s
document.fragment
2K/s
View exact numbers
Test name
Executions per second
✓
appendChild
3,057 Ops/sec
append
2,683 Ops/sec
document.fragment
1,628 Ops/sec
HTML Preparation code:
<div id="container"></div>
Script Preparation code:
var paragraphs = Array.from({length: 1000}, () => document.createElement("p")); var container = document.getElementById("container");
Tests:
append
container.append(...paragraphs);
appendChild
for (let i = 0; i < paragraphs.length; i++) { container.appendChild(paragraphs[i]); }
document.fragment
const fragment = new DocumentFragment(); for (let i = 0; i < paragraphs.length; i++) { fragment.append(paragraphs[i]); } container.append(fragment);