Micro benchmark for and for-of loops in Node.js

bench-loops.js

var Benchmark = require('benchmark');
var suite = new Benchmark.Suite;
var arr = [1,2,3,4,5,6,7,8,9,0]
suite.add('for', function() {
  for (var i = 0, len = arr.length; i < len; i++) {
    var item = arr[i];
    item + 1;
  }
})
.add('for-of', function() {
  for (var item of arr) {
    item + 1;
  }
})
.on('cycle', function(event) {
  console.log(String(event.target));
})
.on('complete', function() {
  console.log('Fastest is ' + this.filter('fastest').map('name'));
})
.run({ 'async': true });

See: https://jsperf.co/for-vs-foreach-vs-for-of