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for vs forEach vs some vs for..of vs for..in
(version: 1)
Compare loop performance
Comparing performance of:
for vs foreach vs some vs for..of vs for..in
Created:
5 years ago
by:
Registered User
Jump to the latest result
Script Preparation code:
var array = new Array(1000).fill(0);
Tests:
for
for (let i = 0, length = array.length; i < length; i++) { array[i] }
foreach
array.forEach(item => item);
some
array.some(item => item);
for..of
for (let item of array) { item }
for..in
for (let i in array) { array[i] }
Rendered benchmark preparation results:
Suite status:
<idle, ready to run>
Run tests (5)
Previous results
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Test case name
Result
for
foreach
some
for..of
for..in
Fastest:
N/A
Slowest:
N/A
Latest run results:
Run details:
(Test run date:
one year ago
)
User agent:
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/134.0.0.0 Safari/537.36
Browser/OS:
Chrome 134 on Linux
View result in a separate tab
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Embed Benchmark Result
<iframe src="https://measurethat.net/Embed?id=593738" width="100%" height="500px"></iframe>
Test name
Executions per second
for
965846.7 Ops/sec
foreach
3683488.8 Ops/sec
some
1826720.2 Ops/sec
for..of
3725722.5 Ops/sec
for..in
60997.2 Ops/sec
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