WM CLASS 4 - AHAMD OMID OMARI - JAVASCRIPT CORE 2 - WEEK 1

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

@@ -16,8 +16,8 @@ let dog = {
   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}`);
 

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

@@ -17,7 +17,7 @@ let capitalCities = {
 */
 
 let myCountry = "UnitedKingdom";
-let myCapitalCity; // complete the code
+let myCapitalCity= capitalCities[myCountry]; // complete the code
 
 console.log(myCapitalCity);
 

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

@@ -12,6 +12,7 @@ let basketballTeam = {
     address: "1901 W Madison St",
   },
 };
+basketballTeam.topPlayers.sort().forEach(x =>{console.log(x)});
 
 /*
   Write code that
@@ -22,11 +23,10 @@ let basketballTeam = {
 
 // write code here
 
-
 /* EXPECTED RESULT
 
   Dennis Rodman
   Michael Jordan
   Scottie Pippen
 
-*/
+*/

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

@@ -10,9 +10,8 @@ let capitalCities = {
   },
   China: {
     name: "Beijing",
-  }
+  },
 };
-
 /*
   Using dot notation:
     - Change the value of UnitedKingdom's capital city population to 8980000.
@@ -23,6 +22,9 @@ let capitalCities = {
 */
 
 // write code here
+capitalCities.UnitedKingdom.population = 8980000;
+capitalCities.China.population = 21500000;
+capitalCities.Peru = { name: "lima", population: 9750000 };
 
 console.log(capitalCities);
 
@@ -34,4 +36,4 @@ 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,
 };
 
 /*
@@ -16,6 +16,7 @@ let student = {
 */
 
 // write code here
+student.attendance = 90;
 
 /*
   - Write an "if" statement that changes the value of hasPassed to true
@@ -26,6 +27,8 @@ let student = {
 */
 
 // write code here
+student.hasPassed =
+  student.attendance >= 90 && student.examScore > 60 ? true : false;
 
 console.log(student);
 
@@ -38,4 +41,4 @@ console.log(student);
     attendance: 90
   }
 
-*/
+*/

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

@@ -14,23 +14,23 @@ let car = {
   yearsOld: 8,
 };
 
-console.log(car["colour"]);
+console.log(car["colour"]); // color property not defined in car object.
 
 // Example 2
 function sayHelloToUser(user) {
-  console.log(`Hello ${user.firstName}`);
+  console.log(`Hello ${user.firstName}`); //firstName property is not defined in user object instead we need to use name property
 }
 
 let user = {
-  name: "Mira"
+  name: "Mira",
 };
 
 sayHelloToUser(user);
 
 // Example 3
 let myPet = {
   animal: "Cat",
-  getName: function() {
+  getName: function () {// return keyword is missing 
     "My pet's name is Fluffy";
   },
 };

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

@@ -8,7 +8,10 @@
 */
 
 let student = {
-  // write code here
+  // write code here`
+  getName: function(name){
+    console.log(`Student name: ${name}`)
+  }
 }
 
 student.getName("Daniel");

2-mandatory/1-recipes.js

@@ -22,4 +22,42 @@
   You should write and log at least 5 recipes
 */
 
-// write code here
+// write code here
+
+
+let favoriteRecipe = {
+  recipe1: {
+    title: "Mole",
+    servings: 2,
+    ingredients: ["cinnamon", "cumin", "cocoa"],
+  },
+  recipe2: {
+    title: "Pizza Margherita XL",
+    servings: 4,
+    ingredients: ["strong bread flour", "yeast", "salt", "olive", "tomato"],
+  },
+  recipe3: {
+    title: "Pancake",
+    servings: 3,
+    ingredients: ["egg", "milk", "flour", "butter", "salt", "baking powder"],
+  },
+  recipe4: {
+    title: "Mango Lassi",
+    servings: 2,
+    ingredients: ["mango", "plain yogurt", "milk", "honey", "cardamom", "ice"],
+  },
+  recipe5: {
+    title: "Kebab",
+    servings: 1,
+    ingredients: ["lamb", "tomato", "salt", "lime", "garlic"],
+  },
+  display: function (recipe) {
+    let res = `${this[recipe].title}\nServes: ${this[recipe].servings}\nIngredients:\n`;
+    for (let i = 0; i < this[recipe].ingredients.length; i++)
+      res += this[recipe].ingredients[i] + "\n";
+    return res;
+  },
+};
+
+for (let i = 1; i < Object.keys(favoriteRecipe).length; i++)
+  console.log(favoriteRecipe.display("recipe" + i));

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

@@ -16,10 +16,15 @@ const COUNTRY_CURRENCY_CODES = [
   ["NG", "NGN"],
   ["MX", "MXN"],
 ];
-
 function createLookup(countryCurrencyCodes) {
   // write code here
+  let res = {};
+  for (let i = 0; i < countryCurrencyCodes.length; i++)
+    res[countryCurrencyCodes[i][0]] = countryCurrencyCodes[i][1];
+
+  return res;
 }
+console.log(createLookup(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 +39,4 @@ test("creates country currency code lookup", () => {
     NG: "NGN",
     MX: "MXN",
   });
-});
+});

2-mandatory/3-shopping-list.js

@@ -19,8 +19,27 @@ let pantry = {
 };
 
 function createShoppingList(recipe) {
-  // write code here
+  // write code here`
+  return {
+    name: recipe.name,
+    items: recipe.ingredients.filter(
+      (x) => !pantry.fridgeContents.concat(pantry.cupboardContents).includes(x)
+    ),
+  };
 }
+console.log(
+  createShoppingList({
+    name: "margherita pizza",
+    ingredients: [
+      "flour",
+      "salt",
+      "yeast",
+      "tinned tomatoes",
+      "oregano",
+      "mozarella",
+    ],
+  })
+);
 
 /* ======= TESTS - DO NOT MODIFY =====
 - To run the tests for this exercise, run `npm test -- --testPathPattern 3-shopping-list.js`
@@ -43,11 +62,18 @@ 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

@@ -21,7 +21,14 @@ const MENU = {
 
 let cashRegister = {
   // write code here
-}
+  orderBurger: function (balance) {
+    return balance >= MENU.burger ? balance - MENU.burger : balance;
+  },
+  orderFalafel: function (balance) {
+    return balance >= MENU.falafel ? balance - MENU.falafel : balance;``
+  },
+};
+console.log(cashRegister.orderBurger(6.4));
 
 /* ======= TESTS - DO NOT MODIFY =====
 - To run the tests for this exercise, run `npm test -- --testPathPattern 4-restaurant.js`

3-extra/1-count-words.js

@@ -27,7 +27,23 @@ function countWords(string) {
   const wordCount = {};
 
   // write code here
+  const punctuation = [",", ".", "'", '"', ":"];
+  if (string !== "") {
+    let words = string.split(" ");
 
+    for (let i = 0; i <= words.length; i++) {
+      i = 0;
+      let count = 0;
+      let word = words[i];
+      for (let j = 0; j < words.length; j++) {
+        if (word === words[j]) count++;
+      }
+      punctuation.some((p) => word.includes(p))
+        ? (wordCount[`${word}`] = count)
+        : (wordCount[word] = count);
+      while (words.indexOf(word) !== -1) words.splice(words.indexOf(word), 1);
+    }
+  }
   return wordCount;
 }
 
@@ -46,17 +62,25 @@ test("Code works for a small string", () => {
 });
 
 test("A string with, some punctuation", () => {
-  expect(countWords("A string with, some punctuation")).toEqual(
-    { A: 1, string: 1, "with,": 1, some: 1, punctuation: 1 }
-  );
+  expect(countWords("A string with, some punctuation")).toEqual({
+    A: 1,
+    string: 1,
+    "with,": 1,
+    some: 1,
+    punctuation: 1,
+  });
 });
 
 test("Empty string", () => {
   expect(countWords("")).toEqual({});
 });
 
 test("Example task string", () => {
-  expect(countWords("you're braver than you believe, stronger than you seem, and smarter than you think")).toEqual({
+  expect(
+    countWords(
+      "you're braver than you believe, stronger than you seem, and smarter than you think"
+    )
+  ).toEqual({
     "you're": 1,
     and: 1,
     "believe,": 1,