Run results for: Array loop vs foreach (static & index)

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_6) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/14.1 Safari/605.1.15

Browser: Safari 14

Operating system: Mac OS X 10.15.6

Device Platform: Desktop

Date tested: 3 years ago

Script Preparation code:

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

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

Tests:

foreach_static
arr.forEach(function (item){ someFn(3); })
arr.forEach(function (item){
someFn(3);
})

for (var i = 0, len = arr.length; i < len; i++) {
  someFn(3);
}

 
for (var i = 0, len = arr.length; i < len; i++) {  someFn(3);}

foreach_index
arr.forEach(function (item){ someFn(item); })
arr.forEach(function (item){
someFn(item);
})

for (var i = 0, len = arr.length; i < len; i++) {
  someFn(arr[i]);
}

 
for (var i = 0, len = arr.length; i < len; i++) {  someFn(arr[i]);}