Adding new Day

Solutions by devHarsh007/DAY_8.js

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+// Exercises: Level 1
+
+//     Create an empty object called dog
+//     Print the the dog object on the console
+//     Add name, legs, color, age and bark properties for the dog object.The bark property is a method which return woof woof
+//     Get name, legs, color, age and bark value from the dog object
+//     Set new properties the dog object: breed, getDogInfo
+
+// Exercises: Level 2
+
+//     Find the person who has many skills in the users object.
+
+//     Count logged in users, count users having greater than equal to 50 points from the following object.
+
+// 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
+//     }
+// }```
+
+//     Find people who are MERN stack developer from the users object
+
+//     Set your name in the users object without modifying the original users object
+
+//     Get all keys or properties of users object
+
+//     Get all the values of users object
+
+//     Use the countries object to print a country name, capital, populations and languages.
+
+// Exercises: Level 3
+
+//     Create an object literal called personAccount. It has firstName, lastName, incomes, expenses properties and it has totalIncome, totalExpense, accountInfo,addIncome, addExpense and accountBalance methods. Incomes is a set of incomes and its description and expenses is a set of incomes and its description.
+//     **** Questions:2, 3 and 4 are based on the following two arrays:users and products ()
+
+//     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']
+//   }
+// ]
+
+// Imagine you are getting the above users collection from a MongoDB database. a. Create a function called signUp which allows user to add to the collection. If user exists, inform the user that he has already an account.
+// b. Create a function called signIn which allows user to sign in to the application
+
+//     The products array has three elements and each of them has six properties. a. Create a function called rateProduct which rates the product b. Create a function called averageRating which calculate the average rating of a product
+
+//     Create a function called likeProduct. This function will helps to like to the product if it is not liked and remove like if it was liked.
+
+// 🎉 CONGRATULATIONS ! 🎉