Run results for: Array loop vs foreach vs map

Run details:

User agent: Mozilla/5.0 (Linux; Android 8.0.0; ONEPLUS A3003 Build/OPR1.170623.032) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/68.0.3440.85 Mobile Safari/537.36

Browser: Chrome Mobile 68

Operating system: Android 8.0.0

Device Platform: Mobile

Date tested: 6 years ago

Test name	Executions per second
foreach	6662.8 Ops/sec
for	3526.4 Ops/sec
map	6547.8 Ops/sec

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))