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for loop vs. .map (6/17/2026)
(version: 1)
Comparing performance of:
.map vs for loop
Created:
one month ago
by:
Guest
Go to the latest result
Script Preparation code:
// Create sample data var array = [1,2,3,4,5,6,7,8,9,0]; var manipulateFn = num => { return num * 2 * 3; }
Tests:
.map
const newArray = array.map(i => manipulateFn(i));
for loop
const newArray = []; for (let index = 0; index < array.length; index++) { newArray.push(manipulateFn(array[index])); }
Rendered benchmark preparation results:
Suite status:
<idle, ready to run>
Run tests (2)
Previous results
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Test case name
Result
.map
for loop
Fastest:
N/A
Slowest:
N/A
Latest run results:
Run details:
(Test run date:
one month ago
)
User agent:
Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:148.0) Gecko/20100101 Firefox/148.0
Browser/OS:
Firefox 148 on Windows
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Embed
Embed Benchmark Result
<iframe src="https://measurethat.net/Embed?id=629753" width="100%" height="500px"></iframe>
.map
18.7M/s
for loop
10.3M/s
View exact numbers
Test name
Executions per second
✓
.map
18,693,144 Ops/sec
for loop
10,320,423 Ops/sec
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