Benchmark: for vs foreach vs for..in vs for..of skidson

Script Preparation code:

var array = new Array(1000000);

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]; }

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
for
foreach
for in
for..of

Fastest: N/A

Slowest: N/A

Latest run results:

Run details: (Test run date: one year ago)

User agent: Mozilla/5.0 (Linux; Android 10; K) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.0.0 Mobile Safari/537.36

Browser/OS: Chrome Mobile 131 on Android

View result in a separate tab

for in

605/s

foreach

366/s

for

262/s

for..of

44/s

View exact numbers

Test name	Executions per second
✓ for in	605 Ops/sec
foreach	366 Ops/sec
for	262 Ops/sec
for..of	44 Ops/sec

for vs foreach vs for..in vs for..of skidson (version: 1)

Compare loop performance skidson

Comparing performance of: `for vs foreach vs for in vs for..of`

Created: one year ago by: Guest

Go to the latest result

for

foreach

for in

for..of

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

for vs foreach vs for..in vs for..of skidson (version: 1)

Compare loop performance skidson

Comparing performance of: for vs foreach vs for in vs for..of

Created: one year ago by: Guest

Go to the latest result

for

foreach

for in

for..of

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

Related benchmarks

Comparing performance of: `for vs foreach vs for in vs for..of`