Benchmark: for vs foreach vs some vs for..of with modern var declarations

Script Preparation code:

var array = new Array(100);

Tests:

for
for (let i = 0; i < array.length; i++) { array[i]; }
foreach
array.forEach(function(i) { array[i]; });
some
array.some(function(i) { array[i]; });
for..of
for (const i of array) { array[i]; }

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 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/130.0.0.0 Safari/537.36

Browser/OS: Chrome 130 on Mac OS X 10.15.7

View result in a separate tab

some

9.2M/s

foreach

8.9M/s

for..of

365K/s

for

221K/s

View exact numbers

Test name	Executions per second
✓ some	9,187,566 Ops/sec
foreach	8,915,883 Ops/sec
for..of	364,537 Ops/sec
for	221,476 Ops/sec

for vs foreach vs some vs for..of with modern var declarations (version: 0)

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 with modern var declarations (version: 0)

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`