| 1 | 'use strict'
|
| 2 | const Benchmark = require('benchmark')
|
| 3 | const suite = new Benchmark.Suite
|
| 4 |
|
| 5 | let arr = new Array(100).fill(Math.random() * 100)
|
| 6 |
|
| 7 | suite
|
| 8 | .add('for', function() {
|
| 9 | let l = arr.length
|
| 10 | for (let i = 0; i < l; i++) {
|
| 11 | let o = arr[i]
|
| 12 | }
|
| 13 | })
|
| 14 | .add('while --', function() {
|
| 15 | let l = arr.length
|
| 16 | while(l--) {
|
| 17 | let o = arr[l]
|
| 18 | }
|
| 19 | })
|
| 20 | .add('while ++', function() {
|
| 21 | let l = arr.length
|
| 22 | let i = -1
|
| 23 | while(l > ++i) {
|
| 24 | let o = arr[i]
|
| 25 | }
|
| 26 | })
|
| 27 | .on('cycle', function(event) {
|
| 28 | console.log(String(event.target))
|
| 29 | })
|
| 30 | .on('complete', function() {
|
| 31 | console.log('Fastest is ' + this.filter('fastest').map('name'))
|
| 32 | })
|
| 33 | .run({ 'async': true })
|