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Week 1 - Day 5 - LAB 1 - JS Book Objects #620

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Week 1 - Day 5 - LAB 1 - JS Book Objects #620

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189 changes: 114 additions & 75 deletions src/books.js
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Original file line number Diff line number Diff line change
@@ -1,100 +1,139 @@
// Iteration 1 | Books Array

// Book 1
// title: The Old Man and the Sea
// pages: 128
// author: Ernest Hemingway
// details: {
// language: English
// description: One of Hemingway's most famous works, it tells the story of Santiago...
// }

// Book 2
// title: The Airbnb Story
// pages: 256
// author: Leight Gallagher
// details: {
// language: English
// description: This is the remarkable behind-the-scenes story of the creation and growth of Airbnb...
// }

// Book 3
// title: Educated - A Memoir
// pages: 352
// author: Tara Westover
// details: {
// language: English
// description: Educated is an account of the struggle for self-invention...
// }

// Book 4
// title: The Art of Learning
// pages: 288
// author: Josh Waitzkin
// details: {
// language: English
// description: The Art of Learning takes readers through Waitzkin's unique journey to excellence. He explains in clear detail how a well-thought-out, principled approach to learning is what separates success from failure.
// }


// Your code here:
const booksArray = [];



const booksArray = [
// Book 1
(book1 = {
title: "The Old Man and the Sea",
pages: 128,
author: "Ernest Hemingway",
details: {
language: "English",
description:
"One of Hemingway's most famous works, it tells the story of Santiago...",
},
}),
// Book 2
(book2 = {
title: "The Airbnb Story",
pages: 256,
author: "Leight Gallagher",
details: {
language: "English",
description:
"This is the remarkable behind-the-scenes story of the creation and growth of Airbnb...",
},
}),
// Book 3
(book3 = {
title: "Educated - A Memoir",
pages: 352,
author: "Tara Westover",
details: {
language: "English",
description:
"Educated is an account of the struggle for self-invention...",
},
}),
// Book 4
(book4 = {
title: "The Art of Learning",
pages: 288,
author: "Josh Waitzkin",
details: {
language: "English",
description:
"The Art of Learning takes readers through Waitzkin's unique journey to excellence. He explains in clear detail how a well-thought-out, principled approach to learning is what separates success from failure.",
},
}),
];

// Iteration 2 | Book Details
function getBookDetails() {
function getBookDetails(booksArray) {
// Your code here:

let book = booksArray;
return `${book.title} - ${book.author} - ${book.pages} pages`;
}



// Iteration 3 | Delete Language
// Your code here:



booksArray.forEach((book) => {
delete book.details.language;
});
//console.log(booksArray);

// Iteration 4 | Estimated Reading Time
// Your code here:



booksArray.forEach((book) => {
const time = (book.pages * 500) / 90;
book.readingTime = Math.ceil(time);
});
//console.log(booksArray);

// Bonus: Iteration 5 | Books Dictionary

/* The `dictionary` is an object containing books grouped by author.
The book info is stored in arrays with structure: [title, pages].
*/
const dictionary = {
"J. K. Rowling": [
["Harry Potter and the Philosopher's Stone", 223],
["Harry Potter and the Chamber of Secrets", 251],
["Harry Potter and the Prisoner of Azkaban", 317],
["Harry Potter and the Goblet of Fire", 636],
],
"Neal Stephenson": [
["Cryptonomicon", 928],
["Anathem", 1008],
["Fall; or, Dodge in Hell", 896],
],
"Malcolm Gladwell": [
["Outliers", 320],
["Blink", 287],
],
"J. K. Rowling": [
["Harry Potter and the Philosopher's Stone", 223],
["Harry Potter and the Chamber of Secrets", 251],
["Harry Potter and the Prisoner of Azkaban", 317],
["Harry Potter and the Goblet of Fire", 636],
],
"Neal Stephenson": [
["Cryptonomicon", 928],
["Anathem", 1008],
["Fall; or, Dodge in Hell", 896],
],
"Malcolm Gladwell": [
["Outliers", 320],
["Blink", 287],
],
};

function booksByAuthor() {
// Your code here:

function booksByAuthor(dictionary) {
const result = [];
for (let author in dictionary) {
const books = dictionary[author];
books.forEach((book) => {
result.push({
title: book[0],
pages: book[1],
author: author,
});
});
}
return result;
}

//console.log(booksByAuthor(dictionary));


// Bonus: Iteration 6 | Average Page Count
function averagePageCount() {
// Your code here:

// //PARA VER SE FUNCIONA:
// const books = [
// (book1 = {
// pages: 128,
// }),
// (book2 = {
// pages: 300,
// }),
// ];
function averagePageCount(books) {
let total = 0;
for (let i = 0; i < books.length; i++) {
total += books[i].pages;
}
return total / books.length;
}
// console.log(averagePageCount(books));

// COM forEach:
// function averagePageCount(books) {
// let total = 0;

// books.forEach(book => {
// total += book.pages;
// });

// return total / books.length;
// }