Run details:
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/83.0.4103.116 Safari/537.36
Chrome 83
Windows
Desktop
4 years ago
Test name Executions per second
foreach 660502.6 Ops/sec
for 5924.7 Ops/sec
for 2 12047.1 Ops/sec
for..of 9604.8 Ops/sec
Script Preparation code:
AخA
 
var array = new Array(1000);
Tests:
  • foreach

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

     
    for (var i = 0; i < array.length; i++) {
      array[i];
    }
  • for 2

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

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