finished important exercises of day 1

solutions/day-01/conditionals.js

@@ -0,0 +1,9 @@
+//1
+let age = prompt("Enter your age:")
+if(age >= 18){
+  alert("You are old enough to drive")
+}else{
+  alert(`You are left with ${18 - age} years to drive.`)
+}
+
+//2

solutions/day-01/objects.js

@@ -0,0 +1,238 @@
+//level1
+let dog = {
+    name: 'dog',
+    legs: 4,
+    color: 'black',
+    bark: function () {
+        return 'woof woof'
+    }
+}
+console.log(dog);
+console.log(dog[name]);
+console.log(dog.legs);
+console.log(dog.color);
+console.log(dog.bark());
+
+dog.breed = 'hush'
+
+dog.getDogInfo = function () {
+    return `I am ${this.name}, I have ${this.legs} legs. My color is ${this.color}, and my bark is ${this.bark()}.`
+}
+console.log(dog.getDogInfo());
+
+//level 2
+const users = {
+    Alex: {
+      email: 'alex@alex.com',
+      skills: ['HTML', 'CSS', 'JavaScript'],
+      age: 20,
+      isLoggedIn: false,
+      points: 30
+    },
+    Asab: {
+      email: 'asab@asab.com',
+      skills: ['HTML', 'CSS', 'JavaScript', 'Redux', 'MongoDB', 'Express', 'React', 'Node'],
+      age: 25,
+      isLoggedIn: false,
+      points: 50
+    },
+    Brook: {
+      email: 'daniel@daniel.com',
+      skills: ['HTML', 'CSS', 'JavaScript', 'React', 'Redux'],
+      age: 30,
+      isLoggedIn: true,
+      points: 50
+    },
+    Daniel: {
+      email: 'daniel@alex.com',
+      skills: ['HTML', 'CSS', 'JavaScript', 'Python'],
+      age: 20,
+      isLoggedIn: false,
+      points: 40
+    },
+    John: {
+      email: 'john@john.com',
+      skills: ['HTML', 'CSS', 'JavaScript', 'React', 'Redux', 'Node.js'],
+      age: 20,
+      isLoggedIn: true,
+      points: 50
+    },
+    Thomas: {
+      email: 'thomas@thomas.com',
+      skills: ['HTML', 'CSS', 'JavaScript', 'React'],
+      age: 20,
+      isLoggedIn: false,
+      points: 40
+    },
+    Paul: {
+      email: 'paul@paul.com',
+      skills: ['HTML', 'CSS', 'JavaScript', 'MongoDB', 'Express', 'React', 'Node'],
+      age: 20,
+      isLoggedIn: false,
+      points: 40
+    }
+  }
+  console.log(Object.keys(users))
+  
+  Object.keys(users).map((user) => {
+      if(users[user].skills.length > 2) console.log(users[user].skills)
+  })
+
+  users["homo"] = {  
+    email: 'paul@paul.com',
+    skills: ['HTML', 'CSS', 'JavaScript', 'MongoDB', 'Express', 'React', 'Node'],
+    age: 20,
+    isLoggedIn: false,
+    points: 40
+}
+
+console.log(users["homo"]);
+
+//3
+Object.keys(users).map((user) => {
+    if(users[user].skills.includes("MongoDB")) console.log(users[user].email)
+})
+
+//5
+Object.keys(users).map((user) => {
+    console.log(users[user])
+})
+
+//6
+console.log(Object.values(users))
+
+const users = [
+  {
+    _id: 'ab12ex',
+    username: 'Alex',
+    email: 'alex@alex.com',
+    password: '123123',
+    createdAt: '08/01/2020 9:00 AM',
+    isLoggedIn: false,
+  },
+  {
+    _id: 'fg12cy',
+    username: 'Asab',
+    email: 'asab@asab.com',
+    password: '123456',
+    createdAt: '08/01/2020 9:30 AM',
+    isLoggedIn: true,
+  },
+  {
+    _id: 'zwf8md',
+    username: 'Brook',
+    email: 'brook@brook.com',
+    password: '123111',
+    createdAt: '08/01/2020 9:45 AM',
+    isLoggedIn: true,
+  },
+  {
+    _id: 'eefamr',
+    username: 'Martha',
+    email: 'martha@martha.com',
+    password: '123222',
+    createdAt: '08/01/2020 9:50 AM',
+    isLoggedIn: false,
+  },
+  {
+    _id: 'ghderc',
+    username: 'Thomas',
+    email: 'thomas@thomas.com',
+    password: '123333',
+    createdAt: '08/01/2020 10:00 AM',
+    isLoggedIn: false,
+  },
+]
+
+const products = [
+  {
+    _id: 'eedfcf',
+    name: 'mobile phone',
+    description: 'Huawei Honor',
+    price: 200,
+    ratings: [
+      { userId: 'fg12cy', rate: 5 },
+      { userId: 'zwf8md', rate: 4.5 },
+    ],
+    likes: [],
+  },
+  {
+    _id: 'aegfal',
+    name: 'Laptop',
+    description: 'MacPro: System Darwin',
+    price: 2500,
+    ratings: [],
+    likes: ['fg12cy'],
+  },
+  {
+    _id: 'hedfcg',
+    name: 'TV',
+    description: 'Smart TV:Procaster',
+    price: 400,
+    ratings: [{ userId: 'fg12cy', rate: 5 }],
+    likes: ['fg12cy'],
+  },
+]
+
+function signUp(newUser) {
+  var hasThisVal = false
+  users.map((user) => {  
+      // console.log(newUser._id)
+      // console.log(user._id)
+      if(newUser._id === user._id){
+          // return ("user already exists")
+          hasThisVal = true;
+          return;
+      }
+  })
+  // users.push(newUser);
+  if(hasThisVal){
+      return "user already exists"
+  }else{
+      users.push(newUser); 
+      return "user added"
+  }
+  console.log(users)
+}
+
+signUp(
+    {
+  _id: 'efmr',
+  username: 'Martha',
+  email: 'martha@martha.com',
+  password: '123222',
+  createdAt: '08/01/2020 9:50 AM',
+  isLoggedIn: false,
+}
+)
+
+//3 a
+//The products array has three elements and each of them has six properties.
+//  a. Create a function called rateProduct which rates the product
+function rateProduct(productId, userId, rate) {
+  products.map((product) => {
+    if(product._id === productId){
+      product.ratings.push({userId : userId, rate: rate})  
+      // console.log(userId, rate)
+    }
+  })
+  console.log(products)
+}
+
+rateProduct("hedfcg", "fg12cy", 7)
+
+//b
+function averageRating(products) {
+  products.map((product) => {
+    let totalRat = 0;
+      product.ratings.map((user) => {
+        avgRating += user.rate;
+        total++;
+      // console.log(user.rate)
+    })
+    // console.log(product.ratings)
+  })
+  return avgRating/total;
+}
+
+averageRating(products)