Run details:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_2) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/79.0.3945.130 Safari/537.36
Chrome 79
Mac OS X 10.15.2
Desktop
5 years ago
Test name Executions per second
for 67919.7 Ops/sec
foreach 3158662.0 Ops/sec
some 3186031.2 Ops/sec
for..of 108510.9 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];
    }