Javascript :: Object Methods #js

ObjectMethods1.js

// define a method by putting the function after a property in an object:
let me = {
  'name' : '',
   getGreeting: function() {
    return `Hi, my name is ${this.name}.`
  }
}
me.name = 'Mary'
console.log(me.getGreeting());
>Hi, my name is Mary.

// you can pass in a parameter to use a property key in a method of the same object:
let me2 = {
  name: 'Tarana',
  getGreeting : function(friend) {
    return 'Hi ' + friend.name + ', my name is ' + this.name + '.';
  }
}
>Hi Alyssa, my name is Tarana.

// passing in a param object that contains methods and calling them with a value:
function callThemAll(object, value) {
  let methodResults = [];
  for (let key in object) {
    let currObj = object[key];
    if (typeof currObj === 'function') {
      let methodResult = currObj(value);
      methodResults.push(methodResult);
    }
  }
  return methodResults;
}


//tic tac toe
let ticTacToe = {
  board: [
    [null, null, null],
    [null, null, null],
    [null, null, null],
   ],
  
  move: function(player, rowNum, colNum) {
    if (!this.board[rowNum][colNum]) {
      this.board[rowNum][colNum] = player;
    }
    console.log(this.board);
    return this.board
  },
  
  clear: function() {
    this.board = [
      [null, null, null],
      [null, null, null],
      [null, null, null],
   ];
  console.log(this.board);
  return this.board;
  }
}

// inventory manager
let tacoCatInc = {
  gourmetShell: {
    'hard treat shell': {cost: 2, quantity: 100},
    'soft treat shell': {cost: 1.5, quantity: 100}
  },

  gourmetFishFilling: {
    'salmon': {cost: 5, quantity: 100},
    'tuna': {cost: 5.5, quantity: 100},
    'sardines': {cost: 1.5, quantity: 100}
  },

  gourmetVeggie: {
    'cat grass': {cost: 1, quantity: 100}
  },

  gourmetSeasoning: {
    'cat nip': {cost: 0.5, quantity: 100},
    'treat dust': {cost: 0.1, quantity: 100}
  },

  cash: 0
};

// YOUR CODE BELOW
tacoCatInc.currentInventory = function () {
  let total = 0;
  for (let key in this) {
    if (key === 'cash') {
      continue;
    }
    let items = this[key];
    for (let itemName in items) {
      let itemObj = items[itemName];
      total += itemObj.cost * itemObj.quantity;
    }
  }
  return total;
};

tacoCatInc.sale = function(order) {
  let finalPrice = 0;
  for (let category in order) {
    let choice = order[category];
    finalPrice += this[category][choice].cost;
    this.cash += this[category][choice].cost;
    this[category][choice].quantity--;
  }
  return finalPrice;
}