Run results for: index loop vs for-of loop vs foreach vs map

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:82.0) Gecko/20100101 Firefox/82.0

Browser: Firefox 82

Operating system: Windows

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;
    }

Tests: