Benchmark: Array loop vs foreach vs map vs for..of

Script Preparation code:

   var arr = [];
    for (var i = 0; i < 1000; i++) {
      arr[i] = i;
    }
  
    function someFn(i) {
      return i * 3 * 8;
    }

Tests:

foreach
arr.forEach(function (item){ someFn(item); })
for
for (var i = 0, len = arr.length; i < len; i++) { someFn(arr[i]); }
map
arr.map(item => someFn(item))
for..of
for (const item of arr) { someFn(item); }

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
foreach
for
map
for..of

Fastest: N/A

Slowest: N/A

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Latest run results:

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

User agent: Mozilla/5.0 (Linux; Android 12; SAMSUNG SM-S908B) AppleWebKit/537.36 (KHTML, like Gecko) SamsungBrowser/18.0 Chrome/99.0.4844.88 Mobile Safari/537.36

Browser/OS: Chrome Mobile 99 on Android

View result in a separate tab

Test name	Executions per second
foreach	6188.7 Ops/sec
for	3249.2 Ops/sec
map	5596.1 Ops/sec
for..of	6600.1 Ops/sec

Array loop vs foreach vs map vs for..of (version: 0)

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

Created: one year ago by: Registered User

Jump to the latest result

foreach

for

map

for..of

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A