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Run results for:
JS: append vs appendChild multiple nodes
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<iframe src="https://measurethat.net/Embed?id=583849" width="100%" height="500px"></iframe>
Run details:
User agent:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:134.0) Gecko/20100101 Firefox/134.0
Browser:
Firefox 134
Operating system:
Mac OS X 10.15
Device Platform:
Desktop
Date tested:
one year ago
document.fragment
279/s
appendChild
266/s
append
145/s
View exact numbers
Test name
Executions per second
✓
document.fragment
279 Ops/sec
appendChild
266 Ops/sec
append
145 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);