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Run results for:
JSON stringify vs slice vs structuredClone vs spread vs Array from
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Embed Benchmark Result
<iframe src="https://measurethat.net/Embed?id=556460" 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/129.0.0.0 Safari/537.36
Browser:
Chrome 129
Operating system:
Windows
Device Platform:
Desktop
Date tested:
one year ago
Test name
Executions per second
JSON.stringify
1494576.4 Ops/sec
slice
10122222.0 Ops/sec
Array from
5999954.5 Ops/sec
Spread
9754202.0 Ops/sec
structuredClone
593298.0 Ops/sec
Script Preparation code:
var vertices = [ [1, 0, 0, 0], [0, 1, 0, 0], [0, 0, 1, 0], [0, 0, 0, 1], ] var myCopy = null;
Tests:
JSON.stringify
myCopy = JSON.parse(JSON.stringify(vertices));
slice
myCopy = vertices.slice();
Array from
myCopy = Array.from(vertices)
Spread
myCopy = [...vertices]
structuredClone
myCopy = structuredClone(vertices)