From a2697b310a45d2724b28c2c0c9f3946b0347ee82 Mon Sep 17 00:00:00 2001
From: Zefi Kavvadia <zefi.kavvadia@di.huc.knaw.nl>
Date: Fri, 20 Jun 2025 20:56:05 +0200
Subject: [PATCH] Solved lab

---
 src/books.js | 85 ++++++++++++++++++++++++++++++++++++++++++++--------
 1 file changed, 73 insertions(+), 12 deletions(-)

diff --git a/src/books.js b/src/books.js
index c8119bb..ab59667 100644
--- a/src/books.js
+++ b/src/books.js
@@ -38,35 +38,80 @@
 
 
 // Your code here:
-const booksArray = [];
-
+const booksArray = [
+{
+  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..."
+  }
+},
+
+{
+  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..."
+  }
+},
+
+{
+  title: "Educated - A Memoir",
+  pages: 352,
+  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:
-
-}
+  let bookDetails = book.title + " - " + book.author + " - " + book.pages + " pages";
+  return bookDetails;
+};
 
 
 
 // Iteration 3 | Delete Language
 // Your code here:
-
+booksArray.forEach(function (book) {
+  delete book.details.language;
+});
+console.log(booksArray);
 
 
 
 // Iteration 4 | Estimated Reading Time
 // Your code here:
-
-
+booksArray.forEach(function (book) {
+  book.readingTime = Math.ceil(book.pages * 500 / 90);
+});
+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]. 
+The book info is stored in arrays with structure: [title, pages]. 
 */
 const dictionary = {
     "J. K. Rowling": [
@@ -86,15 +131,31 @@ const dictionary = {
     ],
 };
 
-function booksByAuthor() {
+function booksByAuthor(dictionary) {
   // Your code here:
-  
+  let booksArray = [];
+
+  Object.keys(dictionary).forEach( function(author) {
+    dictionary[author].forEach( function(book) {
+      let bookObject = {
+        title: book[0],
+        pages: book[1],
+        author: author
+      };
+      booksArray.push(bookObject);
+    });
+  });
+  return booksArray;
 }
+console.log(booksByAuthor(dictionary));
+
 
 
 
 // Bonus: Iteration 6 | Average Page Count
-function averagePageCount() {
+function averagePageCount(books) {
   // Your code here:
+  let averagePageCount;
   
+  return averagePageCount;
 }