fp4.js

const meal = {
  description: 'Dinner',
};
// 1. In an Immutable way, add a property to the
// meal called calories setting it's value to 200,
// then log the result to the console

const mealWithCalories = {
  ...meal,
  calories: 200
};

console.log(mealWithCalories)

// 2. In an Immutable way, increase the calories 
// by 100 and print the result to the console

const mealWithMoreCalories = {
  ...mealWithCalories,
  calories: mealWithCalories.calories + 100
};

console.log(mealWithMoreCalories)


// 3. In an Immutable way, remove the calories property and log the result to the console

const { calories, ...mealWithoutCalories  } = mealWithMoreCalories;

console.log(mealWithoutCalories, calories)


// See solution at: https://jsbin.com/sunewil/edit?js,console