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136 changes: 103 additions & 33 deletions src/books.js
Original file line number Diff line number Diff line change
Expand Up @@ -36,65 +36,135 @@
// 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 = [
{
title: "The Airbnb Story",
pages: 256,
author: "Leight Gallagher",
details: {
language: "English",
description:
"One of Hemingway's most famous works, it tells the story of Santiago...",
},
},
{
title: "The Old Man and the Sea",
pages: 352,
author: "Ernest Hemingway",
details: {
language: "English",
description:
"This is the remarkable behind-the-scenes story of the creation and growth of Airbnb...",
},
},
{
title: "Educated - A Memoir",
pages: 128,
author: "Tara Westover",
details: {
language: "English",
description:
"Educated is an account of the struggle for self-invention...",
},
},
{
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(book) {
// Your code here:

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



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



booksArray.forEach(function (element) {
delete element.details.language;
});

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



booksArray.forEach(function (element) {
element.readingTime = Math.ceil((element.pages * 500) / 90);
});

// 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() {
function booksByAuthor(dictionary) {
// Your code here:

//const authors = Object.keys(dictionary);
let books = [];

/*Object.keys(dictionary).forEach(function (element) {
books.push({ author: element });
});*/
/*for (const author of Object.values(dictionary)) {
books.push(author);
}*/
for (const author in dictionary) {
for (const book of dictionary[author]) {
books.push({
title: book[0],
pages: book[1],
author: author,
});
}
/*books.push({
title: dictionary[author][0],
pages: dictionary[author][1],
author: author,
});*/
}

//books1.push({ key });

return books;
}


console.log(booksByAuthor(dictionary));

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

let pageCount = 0;
let pagesSum = 0;
for (const book of books) {
pagesSum += book.pages;
}
pageCount = pagesSum / books.length;

return pageCount;
}