Run results for: Array loop vs foreach vs map

Run details:

User agent: Mozilla/5.0 (iPhone; CPU iPhone OS 13_5 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) CriOS/83.0.4103.88 Mobile/15E148 Safari/604.1

Browser: Chrome Mobile iOS 83

Operating system: iOS 13.5

Device Platform: Mobile

Date tested: 4 years ago

Test name	Executions per second
foreach	11342.4 Ops/sec
for	5532.7 Ops/sec
map	10919.8 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))