Run results for: Array loop vs foreach vs map forsk2

Run details:

User agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/117.0.0.0 Safari/537.36

Browser: Chrome 117

Operating system: Linux

Device Platform: Desktop

Date tested: one year ago

Script Preparation code:

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

Tests:

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