Run results for: Array loop vs foreach vs map

Run details:

User agent: Mozilla/5.0 (Linux; Android 9; MI MAX 3 Build/PKQ1.181007.001) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/72.0.3626.121 Mobile Safari/537.36 OPR/51.1.2461.137501

Browser: Opera Mobile 51

Operating system: Android

Device Platform: Mobile

Date tested: 5 years ago

Test name	Executions per second
foreach	4291.6 Ops/sec
for	2293.2 Ops/sec
map	3979.0 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))