is-empty-object.js

   1 const Benchmark = require('benny')
   2 const { generateRandomInteger } = require('./benchmark-utils')
   3
   4 const size = generateRandomInteger(100000)
   5 const testObject = {}
   6 for (let i = 0; i < size; i++) {
   7   testObject[i.toString()] = i
   8 }
   9
  10 Benchmark.suite(
  11   `Is empty object with ${size} keys`,
  12   Benchmark.add('Reflect keys', (obj = testObject) => {
  13     return Reflect.ownKeys(obj).length === 0 && obj?.constructor === Object
  14   }),
  15   Benchmark.add('Keys iteration', (obj = testObject) => {
  16     if (obj?.constructor !== Object) return false
  17     // Iterates over the keys of an object, if
  18     // any exist, return false.
  19     // eslint-disable-next-line no-unreachable-loop
  20     for (const _ in obj) return false
  21     return true
  22   }),
  23   Benchmark.add('Object keys', (obj = testObject) => {
  24     return obj?.constructor === Object && !Object.keys(obj).length
  25   }),
  26   Benchmark.cycle(),
  27   Benchmark.complete(),
  28   Benchmark.save({
  29     file: 'is-empty-object',
  30     format: 'json',
  31     details: true
  32   }),
  33   Benchmark.save({
  34     file: 'is-empty-object',
  35     format: 'chart.html',
  36     details: true
  37   }),
  38   Benchmark.save({
  39     file: 'is-empty-object',
  40     format: 'table.html',
  41     details: true
  42   })
  43 )