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sebdeckers/bench-loops.js

Created May 3, 2017 03:45
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Micro benchmark for and for-of loops in Node.js
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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 });
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See: https://jsperf.co/for-vs-foreach-vs-for-of

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