Azad week 4 inClass exercies (A, B, C)

week-4/InClass/A-objects-intro/README (1).md

@@ -0,0 +1,15 @@
+Objects
+Objects in the real world have properties that describe how they are unique. Your laptop, for example, has a brand (Lenovo/Apple etc.), a screen size (13/15 inch), RAM (8/16GB) etc.
+
+How would we describe the above laptop as a JavaScript object?
+
+let laptop = {
+    brand: "Lenovo",
+    screenSize: 13,
+    isTouchscreen: true
+};
+Useful words to remember when talking about objects:
+
+object literal: anything that has a set of {...} around a set of properties is an object literal
+property or key: brand, screenSize and isTouchScreen are properties/keys of the object
+values: "Lenovo", 13 and true are values of the object's properties

week-4/InClass/A-objects-intro/exercise-part-0.js

@@ -1,7 +1,4 @@
 /*
-
 Describe your own laptop as a JavaScript object
-
 Try to think of as many properties as you can!
-
 */

week-4/InClass/A-objects-intro/exercise-part-1.js

@@ -1,9 +1,5 @@
-/*
-
-Think of 5 different real world "things" that you 
-can describe with a JavaScript object
-
-Assign each of them to a separate variable
-
-*/
-
+/*
+Think of 5 different real world "things" that you
+can describe with a JavaScript object
+Assign each of them to a separate variable
+*/

week-4/InClass/D-methods/exercise-1.js

@@ -6,7 +6,10 @@ Add a method "greet" so this person can say hello.
 
 let person = {
     name: "Alice",
-    age: 25
+    age: 25,
+    greet: function () {
+        return 'hello everybody';
+    }
 };
 
 

week-4/InClass/D-methods/exercise-2.js

@@ -7,7 +7,10 @@ Hint: use 'this' keyword to access the name property.
 
 let person = {
     name: "Alice",
-    age: 25
+    age: 25,
+    sayName: function () {
+        return 'My name is ' + this.name;
+    }
 };
 
 

week-4/InClass/D-methods/exercise-3.js

@@ -8,11 +8,11 @@ let person = {
     name: "Alice",
     age: 25,
     currentAddress: "Glasgow",
-    changeAddress: (newAddress) {
-        currentAddress = newAddress;
+    changeAddress: function (newAddress) {
+        this.currentAddress = 'Edinburgh';
     },
-    celebrateBirthday: function {
-        that.age = that.age + 1;
+    celebrateBirthday: function () {
+        return this.age = this.age + 1;
     }
 };
 

week-4/InClass/D-methods/exercise-4.js

@@ -6,7 +6,10 @@ Define a method "makeFriend" to add a new friend to her list.
 
 let person = {
     name: "Alice",
-    friends: ["John", "Nina"]
+    friends: ["John", "Nina"],
+    makeFriend: function (newFriend) {
+        return this.friends.push(newFriend);
+    }
 };
 
 

week-4/InClass/D-methods/exercise-5.js

@@ -17,19 +17,26 @@ let coffeeMachine = {
     },
     insertedAmount: 0,
     insertMoney: function (amount) {
-
+        this.insertedAmount = amount;
     },
     getCoffee: function (coffee) {
-
+        if (this.insertedAmount >= this.prices[coffee]) { // why coffee is in square brackets?
+            return `Please take your ${coffee}`
+        } else {
+            return `Sorry you don't have enough money for a ${coffee}`
+        }
     }
 };
 
 
+
+
 /*
 DO NOT EDIT ANYTHING BELOW THIS LINE
 */
 
 coffeeMachine.insertMoney(2.40);
+
 console.log(`Expected result: 'Please take your cappuccino'. Actual result: ${coffeeMachine.getCoffee('cappuccino')}`);
 
 coffeeMachine.insertMoney(1.50);