Run details:
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.36
Chrome 120
Windows
Desktop
one year ago
Test name Executions per second
foreach 6726.2 Ops/sec
for 2813.2 Ops/sec
every 7322.6 Ops/sec
Script Preparation code:
AخA
 
   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]);
    }
  • every

     
    arr.every(function (item){
      someFn(item);
      return true;
    })