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Exercicios bloco - 8
Jorge-William Dec 10, 2020
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Jorge-William Dec 15, 2020
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74 changes: 74 additions & 0 deletions 8-1/exercicio-1.js
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// Encontre o nome da primeira pessoa autora do livro nascida no ano de 1947.

const assert = require('assert');

const books = [
{
id: 1,
name: 'As Crônicas de Gelo e Fogo',
genre: 'Fantasia',
author: {
name: 'George R. R. Martin',
birthYear: 1948
},
releaseYear: 1991,
},
{
id: 2,
name: 'O Senhor dos Anéis',
genre: 'Fantasia',
author: {
name: 'J. R. R. Tolkien',
birthYear: 1892,
},
releaseYear: 1954,
},
{
id: 3,
name: 'Fundação',
genre: 'Ficção Científica',
author: {
name: 'Isaac Asimov',
birthYear: 1920,
},
releaseYear: 1951,
},
{
id: 4,
name: 'Duna',
genre: 'Ficção Científica',
author: {
name: 'Frank Herbert',
birthYear: 1920,
},
releaseYear: 1965,
},
{
id: 5,
name: 'A Coisa',
genre: 'Terror',
author: {
name: 'Stephen King',
birthYear: 1947
},
releaseYear: 1986,
},
{
id: 6,
name: 'O Chamado de Cthulhu',
genre: 'Terror',
author: {
name: 'H. P. Lovecraft',
birthYear: 1890,
},
releaseYear: 1928,
},
];

function authorBornIn1947() {
// escreva aqui o seu código
return books.find(book => book.author.birthYear === 1947).author.name;

}
console.log(authorBornIn1947());
// assert.strictEqual(authorBornIn1947(), 'Stephen King');
81 changes: 81 additions & 0 deletions 8-1/exercicio-2.js
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// Retorne o nome do livro de menor nome.


const assert = require('assert');

const books = [
{
id: 1,
name: 'As Crônicas de Gelo e Fogo',
genre: 'Fantasia',
author: {
name: 'George R. R. Martin',
birthYear: 1948
},
releaseYear: 1991,
},
{
id: 2,
name: 'O Senhor dos Anéis',
genre: 'Fantasia',
author: {
name: 'J. R. R. Tolkien',
birthYear: 1892,
},
releaseYear: 1954,
},
{
id: 3,
name: 'Fundação',
genre: 'Ficção Científica',
author: {
name: 'Isaac Asimov',
birthYear: 1920,
},
releaseYear: 1951,
},
{
id: 4,
name: 'Duna',
genre: 'Ficção Científica',
author: {
name: 'Frank Herbert',
birthYear: 1920,
},
releaseYear: 1965,
},
{
id: 5,
name: 'A Coisa',
genre: 'Terror',
author: {
name: 'Stephen King',
birthYear: 1947
},
releaseYear: 1986,
},
{
id: 6,
name: 'O Chamado de Cthulhu',
genre: 'Terror',
author: {
name: 'H. P. Lovecraft',
birthYear: 1890,
},
releaseYear: 1928,
},
];

function smallerName() {
let nameBook;
// escreva aqui o seu código
books.forEach((book) => {
if (!nameBook || book.name.length < nameBook.length) {
nameBook = book.name;
}
});
// Variável nameBook que receberá o valor do menor nome;
return nameBook;
}

assert.strictEqual(smallerName(), 'Duna');
83 changes: 83 additions & 0 deletions 8-1/exercicio-3.js
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const assert = require('assert');

const books = [
{
id: 1,
name: 'As Crônicas de Gelo e Fogo',
genre: 'Fantasia',
author: {
name: 'George R. R. Martin',
birthYear: 1948
},
releaseYear: 1991,
},
{
id: 2,
name: 'O Senhor dos Anéis',
genre: 'Fantasia',
author: {
name: 'J. R. R. Tolkien',
birthYear: 1892,
},
releaseYear: 1954,
},
{
id: 3,
name: 'Fundação',
genre: 'Ficção Científica',
author: {
name: 'Isaac Asimov',
birthYear: 1920,
},
releaseYear: 1951,
},
{
id: 4,
name: 'Duna',
genre: 'Ficção Científica',
author: {
name: 'Frank Herbert',
birthYear: 1920,
},
releaseYear: 1965,
},
{
id: 5,
name: 'A Coisa',
genre: 'Terror',
author: {
name: 'Stephen King',
birthYear: 1947
},
releaseYear: 1986,
},
{
id: 6,
name: 'O Chamado de Cthulhu',
genre: 'Terror',
author: {
name: 'H. P. Lovecraft',
birthYear: 1890,
},
releaseYear: 1928,
},
];

const expectedResult = {
author: {
birthYear: 1948,
name: 'George R. R. Martin'
},
genre: 'Fantasia',
id: 1,
name: 'As Crônicas de Gelo e Fogo',
releaseYear: 1991
};
// Encontre o primeiro livro cujo nome possui 26 caracteres.
function getNamedBook() {
// escreva seu código aqui
return books.find((element) => element.name.length === 26);

}

assert.deepStrictEqual(getNamedBook(), expectedResult);
116 changes: 116 additions & 0 deletions 8-1/exercicio-4.js
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const assert = require('assert');

const books = [
{
id: 1,
name: 'As Crônicas de Gelo e Fogo',
genre: 'Fantasia',
author: {
name: 'George R. R. Martin',
birthYear: 1948
},
releaseYear: 1991,
},
{
id: 2,
name: 'O Senhor dos Anéis',
genre: 'Fantasia',
author: {
name: 'J. R. R. Tolkien',
birthYear: 1892,
},
releaseYear: 1954,
},
{
id: 3,
name: 'Fundação',
genre: 'Ficção Científica',
author: {
name: 'Isaac Asimov',
birthYear: 1920,
},
releaseYear: 1951,
},
{
id: 4,
name: 'Duna',
genre: 'Ficção Científica',
author: {
name: 'Frank Herbert',
birthYear: 1920,
},
releaseYear: 1965,
},
{
id: 5,
name: 'A Coisa',
genre: 'Terror',
author: {
name: 'Stephen King',
birthYear: 1947
},
releaseYear: 1986,
},
{
id: 6,
name: 'O Chamado de Cthulhu',
genre: 'Terror',
author: {
name: 'H. P. Lovecraft',
birthYear: 1890,
},
releaseYear: 1928,
},
];

const expectedResult = [
{
id: 1,
name: 'As Crônicas de Gelo e Fogo',
genre: 'Fantasia',
author: { name: 'George R. R. Martin', birthYear: 1948 },
releaseYear: 1991
},
{
id: 5,
name: 'A Coisa',
genre: 'Terror',
author: { name: 'Stephen King', birthYear: 1947 },
releaseYear: 1986
},
{
id: 4,
name: 'Duna',
genre: 'Ficção Científica',
author: { name: 'Frank Herbert', birthYear: 1920 },
releaseYear: 1965
},
{
id: 2,
name: 'O Senhor dos Anéis',
genre: 'Fantasia',
author: { name: 'J. R. R. Tolkien', birthYear: 1892 },
releaseYear: 1954
},
{
id: 3,
name: 'Fundação',
genre: 'Ficção Científica',
author: { name: 'Isaac Asimov', birthYear: 1920 },
releaseYear: 1951
},
{
id: 6,
name: 'O Chamado de Cthulhu',
genre: 'Terror',
author: { name: 'H. P. Lovecraft', birthYear: 1890 },
releaseYear: 1928
}
];
// Ordene os livros por data de lançamento em ordem decrescente.
function booksOrderedByReleaseYearDesc() {
// escreva aqui seu código
return books.sort((elementA, elementB) => elementB.releaseYear - elementA.releaseYear);
}

assert.deepStrictEqual(booksOrderedByReleaseYearDesc(), expectedResult);
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