40% complated

pull/420/head
Fitsumhelina 10 months ago
parent 0551d2c711
commit 4982ad8b25

@ -1,30 +1,30 @@
// Exercises: Level 3 // 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. // 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.
const personAccount = { // const personAccount = {
firstName: 'fitsum', // firstName: 'fitsum',
lastName: 'helina', // lastName: 'helina',
incomes: [ // incomes: [
{ description: 'Salary', amount: 50000 }, // { description: 'Salary', amount: 50000 },
{ description: 'Bonus', amount: 10000 }, // { description: 'Bonus', amount: 10000 },
], // ],
expenses: [ // expenses: [
{ description: 'Rent', amount: 10000 }, // { description: 'Rent', amount: 10000 },
{ description: 'Groceries', amount: 5000 }, // { description: 'Groceries', amount: 5000 },
], // ],
totalIncome() { // totalIncome() {
return this.incomes.reduce((total, income) => total + income.amount, 0); // return this.incomes.reduce((total, income) => total + income.amount, 0);
}, // },
totalExpense() { // totalExpense() {
return this.expenses.reduce((total, expense) => total + expense.amount, 0); // return this.expenses.reduce((total, expense) => total + expense.amount, 0);
}, // },
accountInfo() { // accountInfo() {
return `Account Information: ${this.firstName} ${this.lastName}`; // return `Account Information: ${this.firstName} ${this.lastName}`;
}, // },
addIncome(description, amount) { // addIncome(description, amount) {
this.incomes.push({ description, amount }); // this.incomes.push({ description, amount });
}, // },
} // }
// **** Questions:2, 3 and 4 are based on the following two arrays:users and products () // **** Questions:2, 3 and 4 are based on the following two arrays:users and products ()
@ -102,7 +102,28 @@ const products = [
] ]
// Imagine you are getting the above users collection from a MongoDB database. // 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. // 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 const newuser = {
_id: 'abc123',
username: 'John Doe',
email: 'johndoe@johndoe.com',
password: '123456',
createdAt: '08/01/2020 10:15 AM',
isLoggedIn: false,
};
const signUp = (newuser) => {
const userexist = users.find((user) => user._id === newuser._id)
if (userexist) {
console.log('User already exists!')
return;
}
else{
users.push(newuser)
console.log('User added successfully!')
}
}
signUp(newuser);
// 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. // The products array has three elements and each of them has six properties.
// a. Create a function called rateProduct which rates the product // a. Create a function called rateProduct which rates the product

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