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fromEntries vs reduce for building objects
(version: 1)
Comparing performance of:
reduce vs fromEntries
Created:
one month ago
by:
Guest
Go to the latest result
HTML Preparation code:
<!--your preparation HTML code goes here-->
Script Preparation code:
var array = Array(10_000).fill().map((_,i)=>({id:i}));
Tests:
reduce
array.reduce((acc, c) => ({ ...acc, [c.id]: c }), {});
fromEntries
Object.fromEntries(array.map((obj) => [obj.id, obj]))
Rendered benchmark preparation results:
Suite status:
<idle, ready to run>
Run tests (2)
Previous results
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Test case name
Result
reduce
fromEntries
Fastest:
N/A
Slowest:
N/A
Latest run results:
Run details:
(Test run date:
one month ago
)
User agent:
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/149.0.0.0 Safari/537.36
Browser/OS:
Chrome 149 on Linux
View result in a separate tab
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Embed Benchmark Result
<iframe src="https://measurethat.net/Embed?id=630022" width="100%" height="500px"></iframe>
fromEntries
2K/s
reduce
92/s
View exact numbers
Test name
Executions per second
✓
fromEntries
2,046 Ops/sec
reduce
92 Ops/sec
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