nam dang tran
5 years ago
parent
6f863b0247
commit
d8ee3a5910
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<!DOCTYPE html>
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<html lang="en">
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<head>
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<meta charset="UTF-8">
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<meta name="viewport" content="width=device-width, initial-scale=1.0">
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<title>Object</title>
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</head>
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<body>
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</body>
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</html>
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<script>
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// const users = {
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// Alex: {
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// email: 'alex@alex.com',
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// skills: ['HTML', 'CSS', 'JavaScript'],
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// age: 20,
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// isLoggedIn: false,
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// points: 30
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// },
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// Asab: {
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// email: 'asab@asab.com',
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// skills: ['HTML', 'CSS', 'JavaScript', 'Redux', 'MongoDB', 'Express', 'React', 'Node'],
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// age: 25,
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// isLoggedIn: false,
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// points: 50
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// },
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// Brook: {
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// email: 'daniel@daniel.com',
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// skills: ['HTML', 'CSS', 'JavaScript', 'React', 'Redux'],
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// age: 30,
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// isLoggedIn: true,
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// points: 50
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// },
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// Daniel: {
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// email: 'daniel@alex.com',
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// skills: ['HTML', 'CSS', 'JavaScript', 'Python'],
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// age: 20,
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// isLoggedIn: false,
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// points: 40
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// },
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// John: {
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// email: 'john@john.com',
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// skills: ['HTML', 'CSS', 'JavaScript', 'React', 'Redux', 'Node.js'],
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// age: 20,
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// isLoggedIn: true,
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// points: 50
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// },
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// Thomas: {
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// email: 'thomas@thomas.com',
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// skills: ['HTML', 'CSS', 'JavaScript', 'React'],
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// age: 20,
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// isLoggedIn: false,
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// points: 40
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// },
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// Paul: {
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// email: 'paul@paul.com',
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// skills: ['HTML', 'CSS', 'JavaScript', 'MongoDB', 'Express', 'React', 'Node'],
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// age: 20,
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// isLoggedIn: false,
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// points: 40
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// }
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// };
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// //TODO: Find the person who has many skills in the users object.
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// const copyUsers = Object.assign({},users);
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// const usersKeys = Object.keys(copyUsers);
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// const usersValues = Object.values(copyUsers);
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// const usersEntries = Object.entries(copyUsers);
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// // usersValues.forEach(value => {
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// // console.log(value.skills)
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// // });
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// usersKeys.forEach(person => {
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// // count logged in users, count users having greater than equal to 50 points from the following object.
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// // if(copyUsers[person].points >= 50){
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// // console.log(person);
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// // }
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// //Find people who are MERN stack developer from the users object
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// const skills = copyUsers[person].skills;
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// if(skills.includes('MongoDB') && skills.includes('Express') && skills.includes('React') && skills.includes('Node')){
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// console.log("MERN stacker: "+ person);
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// }
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// });
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// users.Nam = {
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// email: 'nam@nam.com',
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// skills: ['HTML', 'CSS', 'JavaScript', 'MongoDB', 'Express', 'React', 'Node'],
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// age: 20,
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// isLoggedIn: false,
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// points: 100
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// };
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// Set your name in the users object without modifying the original users object
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// console.log(users);
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//Exercise lv3
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const users = [
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{
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_id: 'ab12ex',
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username: 'Alex',
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email: 'alex@alex.com',
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password: '123123',
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createdAt: '08/01/2020 9:00 AM',
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isLoggedIn: false,
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},
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{
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_id: 'fg12cy',
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username: 'Asab',
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email: 'asab@asab.com',
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password: '123456',
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createdAt: '08/01/2020 9:30 AM',
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isLoggedIn: true,
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},
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{
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_id: 'zwf8md',
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username: 'Brook',
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email: 'brook@brook.com',
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password: '123111',
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createdAt: '08/01/2020 9:45 AM',
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isLoggedIn: true,
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},
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{
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_id: 'eefamr',
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username: 'Martha',
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email: 'martha@martha.com',
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password: '123222',
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createdAt: '08/01/2020 9:50 AM',
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isLoggedIn: false,
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},
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{
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_id: 'ghderc',
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username: 'Thomas',
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email: 'thomas@thomas.com',
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password: '123333',
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createdAt: '08/01/2020 10:00 AM',
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isLoggedIn: false,
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}
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]
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// .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.
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function signUp(user) {
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for (let i = 0; i < users.length; i++) {
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const usr = users[i];
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if (usr[username] === user[username]) {
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console.log('The user is already existed');
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break;
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}
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users.push(user);
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};
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}
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function signIn(user) {
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user.isLoggedIn = true;
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}
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signIn(users[4]);
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console.log(users[4]);
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const products = [
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{
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_id: 'eedfcf',
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name: 'mobile phone',
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description: 'Huawei Honor',
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price: 200,
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ratings: [
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{ userId: 'fg12cy', rate: 5 },
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{ userId: 'zwf8md', rate: 4.5 },
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],
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likes: [],
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},
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{
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_id: 'aegfal',
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name: 'Laptop',
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description: 'MacPro: System Darwin',
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price: 2500,
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ratings: [],
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likes: ['fg12cy'],
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},
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{
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_id: 'hedfcg',
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name: 'TV',
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description: 'Smart TV:Procaster',
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price: 400,
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ratings: [{ userId: 'fg12cy', rate: 5 }],
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likes: ['fg12cy'],
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},
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]
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// a. Create a function called rateProduct which rates the product
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function rateProduct(userId, rate, proId) {
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for (let i = 0; i < products.length; i++) {
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const pro = products[i];
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if (pro[_id] === proId) {
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pro[ratings].push({ userId, rate });
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break;
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}
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}
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}
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//b. Create a function called averageRating which calculate the average rating of a product
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function likeProduct(userId, proId) {
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for (let i = 0; i < products.length; i++) {
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const pro = products[i];
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if (pro[_id] === proId) {
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pro[likes].push(userId);
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break;
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}
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}
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}
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</script>
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