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Array clone (spread vs slice vs array.from)
(version: 1)
Comparing performance of:
Spread vs Slice vs Array.from
Created:
one year ago
by:
Registered User
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HTML Preparation code:
<!--your preparation HTML code goes here-->
Script Preparation code:
const array = Array.from({ length: 128000 }, (_, i) => { return { i } })
Tests:
Spread
const copy = [...array];
Slice
const copy = array.slice();
Array.from
const copy = Array.from(array);
Rendered benchmark preparation results:
Suite status:
<idle, ready to run>
Run tests (3)
Previous results
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Test case name
Result
Spread
Slice
Array.from
Fastest:
N/A
Slowest:
N/A
Latest run results:
Run details:
(Test run date:
5 months ago
)
User agent:
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/142.0.0.0 Safari/537.36
Browser/OS:
Chrome 142 on Windows
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Embed Benchmark Result
<iframe src="https://measurethat.net/Embed?id=621509" width="100%" height="500px"></iframe>
Test name
Executions per second
Spread
4627.2 Ops/sec
Slice
4520.1 Ops/sec
Array.from
4667.5 Ops/sec
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