Run details:
Mozilla/5.0 (X11; Fedora; Linux x86_64; rv:50.0) Gecko/20100101 Firefox/50.0
Firefox 50
Fedora
Other
7 years ago
Test name Executions per second
for 1215116.2 Ops/sec
foreach 5233454.0 Ops/sec
some 5267433.5 Ops/sec
for..of 88177.5 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];
    }