WM4_Dawit-Abraha_JavaScript-Core-2_Week-1

1-exercises/A-accessing-values/exercise1.js

@@ -5,24 +5,24 @@
 */
 
 let dog = {
-  breed: "Dalmatian",
-  name: "Spot",
-  isHungry: true,
-  happiness: 6
+  breed: "Dalmatian", // String
+  name: "Spot", // String
+  isHungry: true, // Boolean
+  happiness: 6, // Number
 };
 
 /*
   You can access the values of each property using dot notation.
   Log the name and breed of this dog using dot notation.
 */
 
-let dogName; // complete the code
-let dogBreed; // complete the code
+let dogName = dog.name; // complete the code
+let dogBreed = dog.breed; // complete the code
 
 console.log(`${dogName} is a ${dogBreed}`);
 
 /* EXPECTED RESULT
 
   Spot is a Dalmatian
 
-*/
+*/

1-exercises/A-accessing-values/exercise2.js

@@ -7,7 +7,7 @@
 let capitalCities = {
   UnitedKingdom: "London",
   China: "Beijing",
-  Peru: "Lima"
+  Peru: "Lima",
 };
 
 /*
@@ -17,12 +17,12 @@ let capitalCities = {
 */
 
 let myCountry = "UnitedKingdom";
-let myCapitalCity; // complete the code
+let myCapitalCity = capitalCities["UnitedKingdom"]; // complete the code
 
 console.log(myCapitalCity);
-
+// console.log(capitalCities["UnitedKingdom"]);
 /* EXPECTED RESULT
 
   London
 
-*/
+*/

1-exercises/A-accessing-values/exercise3.js

@@ -21,12 +21,15 @@ let basketballTeam = {
 */
 
 // write code here
+let topPlayersNames = basketballTeam.topPlayers
+  .sort()
+  .forEach((player) => console.log(player));
 
-
+// console.log(topPlayersNames);
 /* EXPECTED RESULT
 
   Dennis Rodman
   Michael Jordan
   Scottie Pippen
 
-*/
+*/

1-exercises/B-setting-values/exercise1.js

@@ -10,7 +10,7 @@ let capitalCities = {
   },
   China: {
     name: "Beijing",
-  }
+  },
 };
 
 /*
@@ -23,7 +23,14 @@ let capitalCities = {
 */
 
 // write code here
-
+capitalCities.UnitedKingdom.population = 8980000;
+capitalCities.China.population = 21500000;
+capitalCities.Peru = {
+  name: "Lima",
+  population: 9750000,
+};
+// capitalCities.Peru.name = 'Lima';
+//   capitalCities.Peru.population = 9750000;
 console.log(capitalCities);
 
 /* EXPECTED RESULT
@@ -34,4 +41,4 @@ console.log(capitalCities);
     Peru: { name: "Lima", population: 9750000 }
   }
 
-*/
+*/

1-exercises/B-setting-values/exercise2.js

@@ -6,7 +6,7 @@
 let student = {
   name: "Reshma Saujani",
   examScore: 65,
-  hasPassed: false
+  hasPassed: false,
 };
 
 /*
@@ -16,7 +16,7 @@ let student = {
 */
 
 // write code here
-
+student["attendance"] = 90;
 /*
   - Write an "if" statement that changes the value of hasPassed to true
       if the student has attendance that is equal or greater than 90
@@ -27,6 +27,9 @@ let student = {
 
 // write code here
 
+if (student["attendance"] >= 90 && student["examScore"] > 60) {
+  student["hasPassed"] = true;
+}
 console.log(student);
 
 /* EXPECTED RESULT
@@ -38,4 +41,4 @@ console.log(student);
     attendance: 90
   }
 
-*/
+*/

1-exercises/C-undefined-properties/exercise.js

@@ -14,25 +14,25 @@ let car = {
   yearsOld: 8,
 };
 
-console.log(car["colour"]);
+console.log(car["colour"]); // There is color property which is not assigned.
 
 // Example 2
 function sayHelloToUser(user) {
   console.log(`Hello ${user.firstName}`);
 }
 
 let user = {
-  name: "Mira"
+  name: "Mira",
 };
 
-sayHelloToUser(user);
+sayHelloToUser(user); // The user object variable contains 'name,' while the function we are logging contains 'firstName.'
 
 // Example 3
 let myPet = {
   animal: "Cat",
-  getName: function() {
+  getName: function () {
     "My pet's name is Fluffy";
   },
 };
 
-console.log(myPet.getName());
+console.log(myPet.getName()); // The 'return' statement is missing from the function.

1-exercises/D-object-methods/exercise.js

@@ -9,12 +9,16 @@
 
 let student = {
   // write code here
-}
+  // name: 'Daniel',
+  getName: function (name) {
+    console.log(`${"Student name:"} ${name}`);
+  },
+};
 
 student.getName("Daniel");
 
 /* EXPECTED RESULT
 
   Student name: Daniel
 
-*/
+*/

2-mandatory/1-recipes.js

@@ -22,4 +22,66 @@
   You should write and log at least 5 recipes
 */
 
-// write code here
+// write code here
+let recipes = {
+  easyEggFriedRice: {
+    title: `Easy egg-fried rice`,
+    servings: 2,
+    ingerdiants: [
+      "250g long grain rice",
+      "3 tbsp vegetable oil",
+      "1 onion, finely chopped",
+      "4 eggs, beaten",
+      "2 spring onion, sliced, to serve",
+      " olive oil",
+    ],
+  },
+  smokedMackerelRisotto: {
+    title: `Smoked mackerel risotto`,
+    servings: 3,
+    ingerdiants: [
+      "1 tbsp butter",
+      "1 onion, finely chopped",
+      "250 risotte rice",
+      "100ml white wine",
+      "1l begetable stock",
+      "1 x 240 pack smoked mackerel",
+      "2 spring onions, sliced",
+      "100g bag fresh spinach",
+    ],
+  },
+  RoastLamb: {
+    title: `Roast lamb`,
+    servings: 8,
+    ingerdiants: [
+      "carrots",
+      "onion",
+      "small bunch parsley",
+      "thyme leaf",
+      "lemon",
+    ],
+  },
+  Scampi: {
+    title: `Scampi with tartare sauce`,
+    servings: 2,
+    ingerdiants: [
+      "cornflour",
+      "sparkling water",
+      "beer",
+      "Dublin Bay prawn tails",
+      " olive oil",
+    ],
+  },
+};
+function printOut(meals) {
+  console.log(recipes[meals]["title"]);
+  console.log("Serves: " + recipes[meals]["servings"]);
+  console.log(
+    " Ingredients:" + recipes[meals]["ingerdiants"].map((x) => x + " \n ")
+  );
+}
+
+printOut("easyEggFriedRice");
+printOut("smokedMackerelRisotto");
+printOut("RoastLamb");
+printOut("Scampi");

2-mandatory/2-currency-code-lookup.js

@@ -18,8 +18,14 @@ const COUNTRY_CURRENCY_CODES = [
 ];
 
 function createLookup(countryCurrencyCodes) {
-  // write code here
+  let currencyObject = {};
+  for (let currency of countryCurrencyCodes) {
+    currencyObject[currency[0]] = currency[1];
+  }
+  return currencyObject;
+  // return Object.fromEntries(countryCurrencyCodes)
 }
+// console.log(COUNTRY_CURRENCY_CODES)
 
 /* ======= TESTS - DO NOT MODIFY =====
 - To run the tests for this exercise, run `npm test -- --testPathPattern 2-currency-code-lookup.js`
@@ -34,4 +40,4 @@ test("creates country currency code lookup", () => {
     NG: "NGN",
     MX: "MXN",
   });
-});
+});

2-mandatory/3-shopping-list.js

@@ -19,7 +19,24 @@ let pantry = {
 };
 
 function createShoppingList(recipe) {
-  // write code here
+  let recipeName = recipe.name;
+  let recipeIngredients = recipe.ingredients;
+
+  let emptyContainer = [];
+
+  recipeIngredients.forEach((item) => {
+    if (
+      !pantry.fridgeContents.includes(item) &&
+      !pantry.cupboardContents.includes(item)
+    ) {
+      emptyContainer.push(item);
+    }
+  });
+
+  return {
+    name: recipeName,
+    items: emptyContainer,
+  };
 }
 
 /* ======= TESTS - DO NOT MODIFY =====
@@ -43,11 +60,18 @@ test("createShoppingList works for pancakes recipe", () => {
 test("createShoppingList works for margherita pizza recipe", () => {
   let recipe2 = {
     name: "margherita pizza",
-    ingredients: ["flour", "salt", "yeast", "tinned tomatoes", "oregano", "mozarella"],
+    ingredients: [
+      "flour",
+      "salt",
+      "yeast",
+      "tinned tomatoes",
+      "oregano",
+      "mozarella",
+    ],
   };
 
   expect(createShoppingList(recipe2)).toEqual({
     name: "margherita pizza",
-    items: ["flour", "yeast", "mozarella"]
+    items: ["flour", "yeast", "mozarella"],
   });
-});
+});

2-mandatory/4-restaurant.js

@@ -20,8 +20,19 @@ const MENU = {
 };
 
 let cashRegister = {
-  // write code here
-}
+  orderBurger: function (balance) {
+    if (balance >= MENU.burger) {
+      balance -= MENU.burger;
+    }
+    return balance;
+  },
+  orderFalafel: function (balance) {
+    if (balance >= MENU.falafel) {
+      balance -= MENU.falafel;
+    }
+    return balance;
+  },
+};
 
 /* ======= TESTS - DO NOT MODIFY =====
 - To run the tests for this exercise, run `npm test -- --testPathPattern 4-restaurant.js`