promise-handling.mjs

   1 import Benchmark from 'benny'
   2
   3 /**
   4  *
   5  */
   6 async function asyncFunction () {
   7   await new Promise(resolve => {
   8     resolve()
   9   })
  10 }
  11
  12 Benchmark.suite(
  13   'Promise handling',
  14   Benchmark.add('await promise', async () => {
  15     try {
  16       return await asyncFunction()
  17     } catch (e) {
  18       console.error(e)
  19     }
  20   }),
  21   Benchmark.add('promise with then().catch()', () => {
  22     asyncFunction()
  23       .then(r => {
  24         return r
  25       })
  26       .catch(e => {
  27         console.error(e)
  28       })
  29   }),
  30   Benchmark.add('voided promise', () => {
  31     // eslint-disable-next-line no-void
  32     void asyncFunction()
  33   }),
  34   Benchmark.add('mishandled promise', () => {
  35     asyncFunction()
  36   }),
  37   Benchmark.cycle(),
  38   Benchmark.complete(),
  39   Benchmark.save({
  40     file: 'promise-handling',
  41     format: 'json',
  42     details: true
  43   }),
  44   Benchmark.save({
  45     file: 'promise-handling',
  46     format: 'chart.html',
  47     details: true
  48   }),
  49   Benchmark.save({
  50     file: 'promise-handling',
  51     format: 'table.html',
  52     details: true
  53   })
  54 ).catch(err => {
  55   console.error(err)
  56 })