1 - prototype inheritance

extendArrayFucntionality.js

Array.prototype.odd = function () {
    return this.filter(i => i%2 === 1)
}

console.log([1,2,3,4,5,6].odd())

functionConstuctor.js

const someCup = {
  space: 300,
  color: 'red',
  material: 'glass',
  handle: true
};

function Cup(space, color, material) {
  // this = {}
  this.space = space;
  this.color = color || 'black';
  this.material = material || 'glass';
  //return this
}

Cup.prototype.isHot = function () {
  return false
}


const greenCup = new Cup(300, 'green')
const redGlassCup = new Cup(200, 'red', 'glass')
console.log(redGlassCup.isHot())

proto__prototype__.js

//es6
class CoffeeMachine {
  constructor(model, source = 'powder', power) {
    //this = {} //explicitly - неявно
    this.name = model;
    this.source = source
    this.power = power
    //return this
  };

  turnOn() {
    if (this.power>=0) {
      console.log('turned on')
      return true
    }
  }
}

class AmericanCoffeeMachine extends CoffeeMachine {
  constructor(model, source = 'powder') {
    //   //this = {} //explicitly - неявно
    super(model, source) // вызываем код с 3й строки
    this.power = 110;
    //   //return this
  };

  turnOn() {
    super.turnOn()
    console.log('some')
  }
}

const nespresso = new CoffeeMachine('Nespress Cappucchino', 'capsules', 220);
// console.log(nespresso)
// nespresso.turnOn()
const americanNespresso = new AmericanCoffeeMachine('American', 'powder', 110)
console.log(americanNespresso.turnOn())

console.log(americanNespresso.__proto__ === AmericanCoffeeMachine.prototype)
console.log(americanNespresso.__proto__.__proto__ === CoffeeMachine.prototype)
console.log(americanNespresso.__proto__.__proto__.__proto__ === Object.prototype)


//old es5
function CoffeeMachineOld(model, source) {
  this.name = model;
  this.source = source;
}

const oldMachine = new CoffeeMachineOld('Nespress Cappucchino', 'capsules');
console.log(oldMachine)

using__proto__.js

let animalActions = {
  sleep: function () {
    console.log('sleep')
    return 'sleep'
  }
}


let animal = {
  eat: true
}
animal.__proto__ = animalActions

let bear = {
  hasClaws: true
}



let eagle = {
  canFly: true,
  transfer: function () {
    console.log('на пути в теплые страны')
  },
  render: function () {

  }
}

eagle.__proto__ = animal

// bear.__proto__ = animal
// bear.__proto__ = animalActions
// console.log(bear.eat)
// eagle.__proto__ = animal
// eagle.transfer()

eagle.sleep()
console.log(eagle.sleep())