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Run results for:
spread vs clone
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Run details:
User agent:
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/126.0.0.0 Safari/537.36
Browser:
Chrome 126
Operating system:
Windows
Device Platform:
Desktop
Date tested:
2 years ago
spread
11.6M/s
structuredClone
422K/s
View exact numbers
Test name
Executions per second
✓
spread
11,591,111 Ops/sec
structuredClone
421,863 Ops/sec
Script Preparation code:
var list = ["test", "apple", "banana", "peach", "123", "foo", "bar", "tree", "dog"];
Tests:
structuredClone
const copy = window.structuredClone(list);
spread
const copy = [...list];