Run details:
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/103.0.5060.114 Safari/537.36 Edg/103.0.1264.62
Chrome 103
Windows
Desktop
2 years ago
Test name Executions per second
foreach 444825.5 Ops/sec
some 494053.6 Ops/sec
for..of 6748.2 Ops/sec
for with length 8534.9 Ops/sec
map 287142.0 Ops/sec
Script Preparation code:
AخA
 
var array = new Array(1000);
Tests:
  • foreach

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

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

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

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

     
    array.map(function(i) {
      array[i];
    });