Run details:
Mozilla/5.0 (Windows NT 6.1; Win64; x64; rv:86.0) Gecko/20100101 Firefox/86.0
Firefox 86
Windows 7
Desktop
4 years ago
Test name Executions per second
for 9210515.0 Ops/sec
foreach 5121087.5 Ops/sec
some 5042502.5 Ops/sec
for..of 76419.7 Ops/sec
Script Preparation code:
AخA
 
var array = new Array(100);
Tests:
  • for

     
    for (var i = 0; i < array.length; i++) {
      array[i];
    }
  • foreach

     
    array.forEach(function(i) {
      array[i];
    });
  • some

     
    array.some(function(i) {
      array[i];
    });
  • for..of

     
    for (var i of array) {
      array[i];
    }