javascript object oriented programming

//object architecture
//DefineProperty
// -configurable
// -writable
// - eneumerable
// - get
// - set

//prototype chain
'use strict'

// const samim = {
//   firstName: 'samim',
//   lastName: 'Hasan',
//   get age() {
//     return this._age + 'Years old'
//   },
//   set age(age) {
//     if (age < 18) {
//       throw new Error('Minors are not allowed')
//     }
//     this._age = age
//   },
//   fullName() {
//     return this.firstName + ' ' + this.lastName
//   }
// }

// Object.defineProperty(samim, '_age', {
//   value: '28',
//   writable: true,
//   enumerable: true,
//   configurable: false
// })

//proxy
//constructor

//OOJ principle
//encapsulation
//Abstraction
//Inheritance
//polymorphism

//creational design pattern (constructor pattern)
function Profile(firstName, lastName) {
  let _age = 28
  this.firstName = firstName
  this.lastName = lastName
  // this.age = age
  Object.defineProperty(this, 'age', {
    get() {
      return _age + 'Years old'
    },
    set(age) {
      if (age < 17) {
        throw new Error('Minors are not allowed')
      }
      _age = age
    }
  })
}

Profile.prototype.fullName = function () {
  return this.firstName + ' ' + this.lastName
}

function ProfessionalProfile(firstName, lastName, profession) {
  Profile.call(this, firstName, lastName)
  this.profession = profession
}

ProfessionalProfile.prototype = Object.create(Profile.prototype)

ProfessionalProfile.prototype.professionalName = function () {
  return this.firstName + ' ' + this.lastName + '-' + this.profession
}

//setting up lost constructor
ProfessionalProfile.prototype.constructor = ProfessionalProfile

const samim = new Profile('samim', 'Hasan')
const samimP = new ProfessionalProfile('samim', 'Hasan', 'web programmer')
















//constructor to class






class Profile {
  #_age = 28

  constructor(firstName, lastName) {
    this.firstName = firstName
    this.lastName = lastName
  }

  get age() {
    return this.#_age + 'years old'
  }

  set age(age) {
    if (age < 18) {
      throw new Error('Minors are not allowed')
    }
    this.#_age = age
  }

  fullName() {
    return this.firstName + ' ' + this.lastName
  }
}

class ProfessionalProfile extends Profile {
  constructor(firstName, lastName, profession) {
    super(firstName, lastName)
    this.profession = profession
  }
  fullName() {
    return 'Senior Programmer- ' + super.fullName()
  }
  professionalName() {
    return super.fullName() + '-' + this.profession
  }
}

const samim = new Profile('samim', 'Hasan')
const samimP = new ProfessionalProfile('samim', 'Hasan', 'web programmer')
const khalil = new Profile('khalil', 'Rahman')