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forEach vs map vs for
(version: 1)
Comparing performance of:
forEach vs map vs for
Created:
7 months ago
by:
Guest
Jump to the latest result
Script Preparation code:
var arr = new Array(15000); arr.fill({ id: 0 }); arr = arr.map((el, idx) => el.id = idx); var foo = Math.floor(Math.random() * 15000);
Tests:
forEach
let indexes = []; arr.forEach((num) => indexes.push(num+1));
map
const indexes = arr.map(num=>num+1)
for
let indexes = []; for(index of indexes){ indexes.push(index+1) }
Rendered benchmark preparation results:
Suite status:
<idle, ready to run>
Run tests (3)
Previous results
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Test case name
Result
forEach
map
for
Fastest:
N/A
Slowest:
N/A
Latest run results:
Run details:
(Test run date:
7 months ago
)
User agent:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/140.0.0.0 Safari/537.36
Browser/OS:
Chrome 140 on Mac OS X 10.15.7
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Embed Benchmark Result
<iframe src="https://measurethat.net/Embed?id=618208" width="100%" height="500px"></iframe>
Test name
Executions per second
forEach
27861.1 Ops/sec
map
18819.3 Ops/sec
for
120386832.0 Ops/sec
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