week 7 homework

answers.js

@@ -0,0 +1,68 @@
+// Q1: Create a function that takes 3 arguments and returns the sum of the these arguments.
+function total(n1,n2,n3) {
+    return n1 + n2 + n3;
+}
+console.log(total(2,3,4));
+
+// Q2: Create a function named colorCar that receives a color, and prints out, 'a red car' for example.
+function colorCar(count, color, type){
+    console.log(`${count} ${color} ${type}`);
+}
+colorCar("a","red","car");
+
+//Q3: Create an object and a function that takes the object as a parameter and prints out all of its properties and values.
+const myFavoriteCar = {
+    color: "light blue",
+    type: "BMW",
+    model: "X6",
+    numberOfHorse: 567,
+    door: 4
+}
+function showMyFavoriteCar(){
+    console.log(`my favorite car: ${myFavoriteCar.type} ${myFavoriteCar.model} has ${myFavoriteCar.numberOfHorse} horses and has ${myFavoriteCar.door} doors.`);
+}
+showMyFavoriteCar();
+
+//Q4: Create a function named vehicleType that receives a color, and a code, 1 for car, 2 for motorbike. And prints 'a blue motorbike' for example when called as vehicleType("blue", 2)
+function vehicleType(color, type){
+    if(type === 1){
+        console.log(`${color} car`);
+    } else if(type === 2){
+        console.log(`a ${color} motorbike`);
+    } else {
+        console.log("Sorry! Undefined car");
+    }
+}
+vehicleType("blue", 2);
+
+//Q5: Can you write the following without the if statement, but with just as a single line with console.log(...);?
+console.log(3 === 3 ? "yes" : "no");
+
+//Q6: Create a function called vehicle, like before, but takes another parameter called age, so that vehicle("blue", 1, 5) prints 'a blue used car'
+function vehicle(color, type, age){
+    if(type === 1){
+        console.log(`a ${color} ${age<=1 ? "new car": "used car"}`);
+    } else if(type === 2){
+        console.log(`a ${color} ${age<=1 ? "new motobike": "used motorbike"}`);
+    } else{
+        console.log("Sorry! Undefined car");
+    }
+}
+vehicle("blue", 1 , 5);
+
+//Q7: Make a list of vehicles, you can add "motorbike", "caravan", "bike", or more.
+const vehicles =["motobike","caravan","bike","car","SUV"];
+
+//Q8: How do you get the third element from that list?
+console.log(vehicles[2]);
+
+//Q9: Change the function vehicle to use the list of question 7. So that vehicle("green", 3, 1) prints "a green new bike".
+function vehicleWithType(color, type, age){
+    if(type <= vehicles.length){
+        console.log(`a ${color} ${age<=1 ? "new": "used"} ${vehicles[type-1]}`);
+    } else{
+        console.log("Sorry! Undefined car");
+    }
+}
+vehicleWithType("green", 3, 1);
+vehicleWithType("green", 2, 1);

ex.js

@@ -1,13 +1,31 @@
 // TODO: define addFavoriteBook(..) function
 
+function addFavoriteBook(bookName){
+    if(!bookName.includes("Great")){
+        favoriteBooks.push(bookName);
+        console.log(favoriteBooks);
+    }
+
+}
+
 // TODO: define printFavoriteBooks() function
 
-const favoriteBooks = [];
+function printFavoriteBooks(){
+    let  i = 1;
+    console.log(`The number of my favorite books is ${favoriteBooks.length}.`);
+    for(let book of favoriteBooks){
+        console.log(`My favorite book number ${i}. : ${book}`);
+        i++;
+    }
+}
 
+const favoriteBooks = [];
 addFavoriteBook("A Song of Ice and Fire");
 addFavoriteBook("The Great Gatsby");
 addFavoriteBook("Crime & Punishment");
 addFavoriteBook("Great Expectations");
 addFavoriteBook("You Don't Know JS");
 
 // TODO: print out favorite books
+
+printFavoriteBooks();