From 1f4e592e9e1a12aeb4c0fd573056bfed5c4bb8de Mon Sep 17 00:00:00 2001
From: Sevda Kahraman <sevda.s.kahraman@gmail.com>
Date: Fri, 20 Jun 2025 17:11:07 +0200
Subject: [PATCH] done

---
 src/books.js | 159 ++++++++++++++++++++++++++++-----------------------
 1 file changed, 88 insertions(+), 71 deletions(-)

diff --git a/src/books.js b/src/books.js
index c8119bb..d81bfd2 100644
--- a/src/books.js
+++ b/src/books.js
@@ -1,100 +1,117 @@
 // 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 = [
+  {
+    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() {
-  // Your code here:
-
+function getBookDetails(book) {
+  return `${book.title} - ${book.author} - ${book.pages} pages`
 }
 
 
 
 // Iteration 3 | Delete Language
-// Your code here:
-
-
 
+for (let i=0 ; i< booksArray.length ; i++) {
+  delete booksArray[i].details.language;
+}
+console.log(booksArray)
 
 // Iteration 4 | Estimated Reading Time
-// Your code here:
-
-
 
+for (let i=0 ; i< booksArray.length ; i++) {
+  booksArray[i].readingTime = Math.ceil((booksArray[i].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() {
-  // Your code here:
-  
-}
+function booksByAuthor(dictionary) {
+  const result = [];
+
+  for (const author in dictionary) {
+    const books = dictionary[author];
 
+    for (let i = 0; i < books.length; i++) {
+      const [title, pages] = books[i];
+
+      result.push({
+        title: title,
+        pages: pages,
+        author: author
+      });
+    }
+  }
+
+  return result;
+}
 
 
 // Bonus: Iteration 6 | Average Page Count
-function averagePageCount() {
-  // Your code here:
-  
+function averagePageCount(booksArray) {
+  let sum = 0
+  for (let i=0 ; i < booksArray.length ; i++ ){
+    sum += booksArray[i].pages
+  }
+  return sum / booksArray.length;
 }