Run results for: for..of VS forEach

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:60.0) Gecko/20100101 Firefox/60.0

Browser: Firefox 60

Operating system: Windows

Device Platform: Desktop

Date tested: 6 years ago

Script Preparation code:

var values = new Array(10000);
for (var i = 0; i < values.length; i++) values[i]=i;

Tests:

forEach
var sum = 0; function add(v) { sum += v} values.forEach(add);
for..of
var sum = 0; for (var v of values) sum += v;
forEach func
var sum = 0; values.forEach(function(v) { sum += v } );
for of transpiled
var sum = 0; for (var _i = 0, values_1 = values; _i < values_1.length; _i++) { var v = values_1[_i]; sum += v; }
for of transpiled simple
var sum = 0; for (var i = 0; i < values.length; i++) sum += values[i];