Benchmark: array string for vs foreach vs for..in vs for..of

Script Preparation code:

var array = new Array('1','2','3','4','5','1','2','3','4','5','1','2','3','4','5','1','2','3','4','5','1','2','3','4','5','1','2','3','4','5','1','2','3','4','5','1','2','3','4','5',);

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 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/136.0.0.0 Safari/537.36

Browser/OS: Chrome 136 on Linux

View result in a separate tab

for

9.2M/s

foreach

5.6M/s

for..of

3.1M/s

for in

1.1M/s

View exact numbers

Test name	Executions per second
✓ for	9,212,680 Ops/sec
foreach	5,583,504 Ops/sec
for..of	3,050,932 Ops/sec
for in	1,146,756 Ops/sec

array string for vs foreach vs for..in vs for..of (version: 1)

Compare loop performance

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

array string for vs foreach vs for..in vs for..of (version: 1)

Compare loop performance

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`