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new Array(length) vs Array.from({ length })
(version: 1)
Comparing performance of:
new Array vs Array.from
Created:
one year ago
by:
Guest
Jump to the latest result
HTML Preparation code:
<!--your preparation HTML code goes here-->
Script Preparation code:
const ARRAY_LENGTH = 10000;
Tests:
new Array
new Array(ARRAY_LENGTH)
Array.from
Array.from({ length: ARRAY_LENGTH })
Rendered benchmark preparation results:
Suite status:
<idle, ready to run>
Run tests (2)
Previous results
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Test case name
Result
new Array
Array.from
Fastest:
N/A
Slowest:
N/A
Latest run results:
Run details:
(Test run date:
one year ago
)
User agent:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/133.0.0.0 Safari/537.36
Browser/OS:
Chrome 133 on Mac OS X 10.15.7
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Embed Benchmark Result
<iframe src="https://measurethat.net/Embed?id=588312" width="100%" height="500px"></iframe>
Test name
Executions per second
new Array
166397312.0 Ops/sec
Array.from
4529.0 Ops/sec
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Array.from({ length: n }) vs new Array(n)
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Array(length).fill() vs Array.from({ length: length })
Array.from() vs new Array() vs []
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