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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=573143" width="100%" height="500px"></iframe>
Run details:
User agent:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:133.0) Gecko/20100101 Firefox/133.0
Browser:
Firefox 133
Operating system:
Mac OS X 10.15
Device Platform:
Desktop
Date tested:
one year ago
Test name
Executions per second
JSON.stringify
1400038.4 Ops/sec
slice
42870512.0 Ops/sec
Array from
11257012.0 Ops/sec
Spread
32631396.0 Ops/sec
structuredClone
850941.2 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)