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Run results for:
createElementNS vs cloneNode
Faster way to create new dom elements before insertion
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<iframe src="https://measurethat.net/Embed?id=620288" width="100%" height="500px"></iframe>
Run details:
User agent:
Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:143.0) Gecko/20100101 Firefox/143.0
Browser:
Firefox 143
Operating system:
Windows
Device Platform:
Desktop
Date tested:
6 months ago
Test name
Executions per second
createElementNS
9.5 Ops/sec
cloneNode (shallow)
15.2 Ops/sec
cloneNode (deep)
15.4 Ops/sec
Tests:
createElementNS
const list = [] let n = 1e5 while (--n) { const c = document.createElementNS('http://www.w3.org/2000/svg', 'circle') c.setAttribute('cx', 39) c.setAttribute('cy', 0) c.setAttribute('r', 20) list.push(c) }
cloneNode (shallow)
const list = [] let n = 1e5 - 1 const c = document.createElementNS('http://www.w3.org/2000/svg', 'circle') c.setAttribute('cx', 39) c.setAttribute('cy', 0) c.setAttribute('r', 20) list.push(c) while (--n) { list.push(c.cloneNode(false)) }
cloneNode (deep)
const list = [] let n = 1e5 - 1 const c = document.createElementNS('http://www.w3.org/2000/svg', 'circle') c.setAttribute('cx', 39) c.setAttribute('cy', 0) c.setAttribute('r', 20) list.push(c) while (--n) { list.push(c.cloneNode(true)) }