random.js

   1 const Benchmark = require('benchmark')
   2 const { LIST_FORMATTER, secureRandom } = require('./benchmark-utils')
   3
   4 const suite = new Benchmark.Suite()
   5
   6 const maximum = 1000
   7
   8 /**
   9  * @param max
  10  * @param min
  11  * @returns
  12  */
  13 function getSecureRandomInteger (max, min = 0) {
  14   max = Math.floor(max)
  15   if (min) {
  16     min = Math.ceil(min)
  17     return Math.floor(secureRandom() * (max - min + 1)) + min
  18   }
  19   return Math.floor(secureRandom() * (max + 1))
  20 }
  21
  22 /**
  23  * @param max
  24  * @param min
  25  * @returns
  26  */
  27 function getRandomInteger (max, min = 0) {
  28   max = Math.floor(max)
  29   if (min) {
  30     min = Math.ceil(min)
  31     return Math.floor(Math.random() * (max - min + 1)) + min
  32   }
  33   return Math.floor(Math.random() * (max + 1))
  34 }
  35
  36 suite
  37   .add('Secure random integer generator', function () {
  38     getSecureRandomInteger(maximum)
  39   })
  40   .add('Random integer generator', function () {
  41     getRandomInteger(maximum)
  42   })
  43   .on('cycle', function (event) {
  44     console.log(event.target.toString())
  45   })
  46   .on('complete', function () {
  47     console.log(
  48       'Fastest is ' + LIST_FORMATTER.format(this.filter('fastest').map('name'))
  49     )
  50     // eslint-disable-next-line n/no-process-exit
  51     process.exit()
  52   })
  53   .run()