function Hamburger() {

}

​

​

SMALL_HAMBURGER = {

  price: 50, calor: 20

};

BIG_HAMBURGER = {

  price: 100, calor: 40

};

​

Hamburger.__proto__ = SMALL_HAMBURGER;

Hamburger.__proto__ = BIG_HAMBURGER;

​

​

CHEESE = {

  price: 10, calor: 20

};

SALAD = {

  price: 20, calor: 5

};

POTATO = {

  price: 15, calor: 10

};

​

Hamburger.__proto__ = CHEESE;

Hamburger.__proto__ = SALAD;

Hamburger.__proto__ = POTATO;

​

​

Hamburger.prototype.calcPrice = function() {

  var selection = this.full;

  var sumPrice = 0;

  for (var i = 0; i < selection.length; i++) {

    sumPrice += selection[i].price;

  }

  this.sumPrice = sumPrice;

  return this.sumPrice;

}

​

​

Hamburger.prototype.calcCalor = function() {

  var selection = this.full;

  var sumCalor = 0;

  for (var i = 0; i < selection.length; i++) {

    sumCalor += selection[i].calor;

  }

  this.sumCalor = sumCalor;

  return this.sumCalor;

}

​

​

Hamburger.prototype.makeSelection = function() {

  var full = [];

  var text = 'Ваш заказ: '

  if (arguments[0] == 'smallHamburger') {

    full.push(SMALL_HAMBURGER);

    text += 'маленький гамбургер, ';

  } else {

    full.push(BIG_HAMBURGER);

    text += 'большой гамбургер, ';

  }

  if (arguments[1] == 'cheese') {

    full.push(CHEESE);

    text += 'сыр';

  } else if (arguments[1] == 'salad') {

    full.push(SALAD);

    text += 'салат';

  } else {

    full.push(POTATO);

    text += 'картошка';

  }

  this.full = full;

  this.text = text;

  console.log(text);

}

​

var newOrder = new Hamburger();

​

newOrder.makeSelection('smallHamburger', 'salad');

console.log('Стоимость(тугриков): ' + newOrder.calcPrice());

console.log('Калории: ' + newOrder.calcCalor());

​

​

newOrder = new Hamburger();

​

newOrder.makeSelection('smallHamburger', 'potato');

console.log('Стоимость(тугриков): ' + newOrder.calcPrice());

console.log('Калории: ' + newOrder.calcCalor());

​

​

newOrder = new Hamburger();

​

newOrder.makeSelection('bigHamburger', 'salad');

console.log('Стоимость(тугриков): ' + newOrder.calcPrice());

console.log('Калории: ' + newOrder.calcCalor());