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for vs foreach vs for..in vs for..of (small array)
(version: 1)
Compare loop performance
Comparing performance of:
for vs foreach vs for in vs for..of vs for (cache length
Created:
one year ago
by:
Guest
Jump to the latest result
Script Preparation code:
var array = new Array(1);
Tests:
for
for (var i = 0; i < array.length; i++) { array[i]; }
foreach
array.forEach(function(i) { array[i]; });
for in
for (var i in array) { array[i]; }
for..of
for (var i of array) { array[i]; }
for (cache length
const length = array.length for (var i = 0; i < length; i++) { array[i]; }
Rendered benchmark preparation results:
Suite status:
<idle, ready to run>
Run tests (5)
Previous results
Fork
Test case name
Result
for
foreach
for in
for..of
for (cache length
Fastest:
N/A
Slowest:
N/A
Latest run results:
Run details:
(Test run date:
one year ago
)
User agent:
Mozilla/5.0 (X11; CrOS x86_64 14541.0.0) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/132.0.0.0 Safari/537.36
Browser/OS:
Chrome 132 on Chrome OS 14541.0.0
View result in a separate tab
Embed
Embed Benchmark Result
<iframe src="https://measurethat.net/Embed?id=594297" width="100%" height="500px"></iframe>
Test name
Executions per second
for
15428524.0 Ops/sec
foreach
14520560.0 Ops/sec
for in
3287515.5 Ops/sec
for..of
9296124.0 Ops/sec
for (cache length
16183961.0 Ops/sec
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