Run details:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:87.0) Gecko/20100101 Firefox/87.0
Firefox 87
Mac OS X 10.15
Desktop
4 years ago
Test name Executions per second
for 11186619.0 Ops/sec
foreach 6362826.0 Ops/sec
some 6429241.5 Ops/sec
for..of 135101.7 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];
    }