promise-handling.js

   1 const Benchmark = require('benchmark')
   2 const { LIST_FORMATTER } = require('./benchmark-utils')
   3
   4 const suite = new Benchmark.Suite()
   5
   6 /**
   7  *
   8  */
   9 function promise () {
  10   return new Promise()
  11 }
  12
  13 /**
  14  *
  15  */
  16 async function asyncFunction () {
  17   await promise()
  18 }
  19
  20 suite
  21   .add('await promise', async function () {
  22     await asyncFunction()
  23   })
  24   .add('promise', function () {
  25     asyncFunction()
  26   })
  27   .on('cycle', function (event) {
  28     console.log(event.target.toString())
  29   })
  30   .on('complete', function () {
  31     console.log(
  32       'Fastest is ' + LIST_FORMATTER.format(this.filter('fastest').map('name'))
  33     )
  34     // eslint-disable-next-line no-process-exit
  35     process.exit()
  36   })
  37   .run()