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30-Days-Of-React
mirror of https://github.com/Asabeneh/30-Days-Of-React
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Completed level 2 of the object exercises

Browse Source 
Almost completed level 3
pull/396/head
kersys 2 years ago
parent 429057a4d3
commit aaf7f36556
2 changed files with 267 additions and 53 deletions
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160
01_Day_JavaScript_Refresher/01_javascript_refresher/Object Exercises/level2.js
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const users = { const users = {
Alex: { Alex: {
email: 'alex@alex.com', email: 'alex@alex.com',
skills: ['HTML', 'CSS', 'JavaScript'], skills: ['HTML', 'CSS', 'JavaScript'],
age: 20, age: 20,
isLoggedIn: false, isLoggedIn: false,
points: 30 points: 30
}, },
Asab: { Asab: {
email: 'asab@asab.com', email: 'asab@asab.com',
skills: ['HTML', 'CSS', 'JavaScript', 'Redux', 'MongoDB', 'Express', 'React', 'Node'], skills: ['HTML', 'CSS', 'JavaScript', 'Redux', 'MongoDB', 'Express', 'React', 'Node'],
age: 25, age: 25,
isLoggedIn: false, isLoggedIn: false,
points: 50 points: 50
}, },
Brook: { Brook: {
email: 'daniel@daniel.com', email: 'daniel@daniel.com',
skills: ['HTML', 'CSS', 'JavaScript', 'React', 'Redux'], skills: ['HTML', 'CSS', 'JavaScript', 'React', 'Redux'],
age: 30, age: 30,
isLoggedIn: true, isLoggedIn: true,
points: 50 points: 50
}, },
Daniel: { Daniel: {
email: 'daniel@alex.com', email: 'daniel@alex.com',
skills: ['HTML', 'CSS', 'JavaScript', 'Python'], skills: ['HTML', 'CSS', 'JavaScript', 'Python'],
age: 20, age: 20,
isLoggedIn: false, isLoggedIn: false,
points: 40 points: 40
}, },
John: { John: {
email: 'john@john.com', email: 'john@john.com',
skills: ['HTML', 'CSS', 'JavaScript', 'React', 'Redux', 'Node.js'], skills: ['HTML', 'CSS', 'JavaScript', 'React', 'Redux', 'Node.js'],
age: 20, age: 20,
isLoggedIn: true, isLoggedIn: true,
points: 50 points: 50
}, },
Thomas: { Thomas: {
email: 'thomas@thomas.com', email: 'thomas@thomas.com',
skills: ['HTML', 'CSS', 'JavaScript', 'React'], skills: ['HTML', 'CSS', 'JavaScript', 'React'],
age: 20, age: 20,
isLoggedIn: false, isLoggedIn: false,
points: 40 points: 40
}, },
Paul: { Paul: {
email: 'paul@paul.com', email: 'paul@paul.com',
skills: ['HTML', 'CSS', 'JavaScript', 'MongoDB', 'Express', 'React', 'Node'], skills: ['HTML', 'CSS', 'JavaScript', 'MongoDB', 'Express', 'React', 'Node'],
age: 20, age: 20,
isLoggedIn: false, isLoggedIn: false,
points: 40 points: 40
} }
} }
function mostSkills() { function mostSkills() {
let obj = undefined; let obj = undefined;
for (const person in users) { for (const person in users) {
if (users.person.skills.length > obj.skills.length) { if (obj == undefined) {
obj = users.person; obj = users[person];
continue;
}
if (users[person].skills.length > obj.skills.length) {
obj = users[person];
} }
} }
console.log(obj); return obj;
}
function enoughPoints() {
let count = 0;
for (const person in users) {
if (Object.hasOwnProperty.call(users, person)) {
if (users[person].points >= 50) {
count += 1;
}
}
}
return count;
}
function findMERN() {
const MERN = ["MongoDB", "Express", "React", "Node"];
const people = {};
for (const person in users) {
if (Object.hasOwnProperty.call(users, person) && MERN.every(stack => users[person].skills.includes(stack))) {
people[person] = users[person];
}
}
return people;
}
function addUser(user) {
let name = user.email;
name = name.split("@")[0];
name = name[0].toUpperCase() + name.slice(1);
users[name] = user;
}
function getKeys() {
const keys = [];
for (const person in users) {
if (Object.hasOwnProperty.call(users, person)) {
keys.push(person);
}
}
return keys;
}
function getValues() {
const values = [];
for (const person in users) {
if (Object.hasOwnProperty.call(users, person)) {
values.push(users[person]);
}
}
return values;
} }
mostSkills(); // no countries object???

160
01_Day_JavaScript_Refresher/01_javascript_refresher/Object Exercises/level3.js
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const personAccount = {
firstName: "Joe",
lastName: "Dover",
incomes: [0],
expenses: [0],
totalIncome: function() {
return this.incomes.reduce((acc, val) => acc+val);
},
totalExpense: function() {
return this.expenses.reduce((acc, val) => acc+val);
},
accountInfo: function() {
return `Name: ${this.lastName} ${this.firstName} In/Out: ${this.totalIncome()}/${this.totalExpense()}`;
},
addExpense: function(expense) {
this.expenses.push(expense);
},
accountBalance: function() {
return this.totalIncome() - this.totalExpense();
}
}
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(username, email, password) {
if (accountExists(email)) {
console.log("This account already exists");
return;
}
const newUser = {};
newUser._id = userIdGenerator();
newUser.username = username;
newUser.email = email;
newUser.password = password;
newUser.createdAt = showDateTime();
isLoggedIn = false;
}
function showDateTime() {
const format = {
year: "numeric",
month: "2-digit",
day: "2-digit",
hour: "2-digit",
minute: "2-digit"
};
console.log(Intl.DateTimeFormat(undefined, format).format(new Date()).replace(',', ''));
}
function userIdGenerator() {
const chars = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789";
result = "";
for (let i = 0; i < 7; i++) {
result += chars[Math.floor(Math.random() * chars.length)];
}
console.log(result);
return result;
}
/**
* Checks if the account already exists
* returns boolean
*/
function accountExists(email) {
users.forEach(user => {
if (user.email == email) {
return true;
}
});
return false;
}
function rateProduct(userID, productID, rating) {
products.forEach(product => {
if (product._id == productID) {
product.ratings.push({userId: userID, rate: rating});
return;
}
});
console.log("There is no such product");
}
function averageRating() {
}
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