cl-cfn-class-speed-test.js

'use strict'

const ITERATION = 1000
console.log(
  process.version,
  ITERATION,
  'iteration',
  'with Type and freeze – v2: prototype based constructor function'
)

/**
 * Type enumeration.
 * @readonly
 * @enum {string}
 */
const Type = {
  /** Homo sapiens sapiens */
  HUMAN: 'HUMAN',
  /** brrr... zz... */
  ROBOT: 'ROBOT'
}
Object.freeze(Type)

// closure function test

const Human = () => {
  const _type = [Type.HUMAN]
  let _name
  let _iq
  return {
    setIQLevel (iq) {
      _iq = iq
      return this
    },
    getIQLevel () {
      return _iq
    },
    setName (name) {
      _name = name
      return this
    },
    getName () {
      return _name
    },
    getType () {
      return _type
    },
    get () {
      return {
        type: _type,
        iq: this.getIQLevel(),
        name: this.getName()
      }
    }
  }
}

let i = 0
let SarahConnor
let start = process.hrtime.bigint()
while (i < ITERATION) {
  SarahConnor = Human()
    .setName('Sarah Connor')
    .setIQLevel(154)
  i++
}
let end = process.hrtime.bigint()
let closureExampleTime = end - start

// console.log('Sarah Connor:', SarahConnor.get())

// constructor function test

function Human2 ({ iq, name }) {
  this.iq = iq
  this.name = name
  this.type = [Type.HUMAN]
}
Human2.prototype.setIQLevel = function (iq) {
  this.iq = iq
}
Human2.prototype.getIQLevel = function () {
  this.iq
}
Human2.prototype.setName = function (name) {
  this.name = name
}
Human2.prototype.getName = function () {
  return this.name
}
Human2.prototype.getType = function () {
  return this.type
}
Human2.prototype.get = function () {
  return {
    type: this.type,
    iq: this.iq,
    name: this.name
  }
}

i = 0
let JohnConnor
start = process.hrtime.bigint()
while (i < ITERATION) {
  JohnConnor = new Human2({ iq: 154, name: 'John Connor' })
  i++
}
end = process.hrtime.bigint()
let funcExampleTime = end - start
// console.log('John Connor:', JohnConnor.get())

// class test

class Human3 {
  constructor ({ iq, name }) {
    this.iq = iq
    this.name = name
    this.type = [Type.HUMAN]
  }

  setIQLevel (iq) {
    this.iq = iq
  }
  getIQLevel () {
    this.iq
  }
  setName (name) {
    this.name = name
  }
  getName () {
    return this.name
  }
  getType () {
    return this.type
  }
  get () {
    return {
      type: this.type,
      iq: this.iq,
      name: this.name
    }
  }
}

i = 0
let KatrineBrewster
start = process.hrtime.bigint()
while (i < ITERATION) {
  KatrineBrewster = new Human3({ iq: 154, name: 'KatrineBrewster' })
  i++
}
end = process.hrtime.bigint()
let classExampleTime = end - start

console.info(
  `CL: ${closureExampleTime}, FN: ${funcExampleTime}, CLASS: ${classExampleTime} nanosec.`
)