Benchmark: for vs foreach vs some vs for..of (string array of alphabet; doing actual work)

Script Preparation code:

var array = ["a", "b", "c", "d", "e", "f", "g", "h", "i", "j", "k", "l", "m", "n", "o", "p", "q", "r", "s", "t", "u", "v", "w", "x", "y", "z"];

Tests:

for
let result = ""; for (var i = 0; i < array.length; i++) { result = result + array[i]; }
foreach
let result = ""; array.forEach(function(element) { result = result + element; });
some
array.some(function(element) { return element === "z"; });
for..of
let result = ""; for (var element of array) { result = result + element; }

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
for
foreach
some
for..of

Fastest: N/A

Slowest: N/A

Latest run results:

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

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/133.0.0.0 Safari/537.36

Browser/OS: Chrome 133 on Windows

View result in a separate tab

some

43.6M/s

for..of

6.7M/s

foreach

5.6M/s

for

5.3M/s

View exact numbers

Test name	Executions per second
✓ some	43,643,776 Ops/sec
for..of	6,686,472 Ops/sec
foreach	5,589,236 Ops/sec
for	5,266,828 Ops/sec

for vs foreach vs some vs for..of (string array of alphabet; doing actual work) (version: 1)

Compare loop performance

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

Created: one year ago by: Guest

Go to the latest result

for

foreach

some

for..of

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

for vs foreach vs some vs for..of (string array of alphabet; doing actual work) (version: 1)

Compare loop performance

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

Created: one year ago by: Guest

Go to the latest result

for

foreach

some

for..of

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

Related benchmarks

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