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