CodeYourFuture · jakr-s · Dec 11, 2025 · Dec 11, 2025 · Dec 11, 2025 · Dec 11, 2025
diff --git a/debugging/book-library/index.html b/debugging/book-library/index.html
@@ -1,12 +1,8 @@
-<!DOCTYPE html>
-<html>
+<!doctype html>
+<html lang="en">
   <head>
-    <title> </title>
-    <meta
-      charset="utf-8"
-      name="viewport"
-      content="width=device-width, initial-scale=1.0"
-    />
+    <meta charset="UTF-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
     <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.4.1/jquery.min.js"></script>
     <script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.16.0/umd/popper.min.js"></script>
     <script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.4.1/js/bootstrap.min.js"></script>
@@ -15,6 +11,8 @@
       href="https://maxcdn.bootstrapcdn.com/bootstrap/4.4.1/css/bootstrap.min.css"
     />
     <link rel="stylesheet" type="text/css" href="style.css" />
+    <script src="script.js" type="module"></script>
+    <title>Book Library</title>
   </head>
 
   <body>
@@ -31,15 +29,15 @@ <h1>Library</h1>
       <div class="form-group">
         <label for="title">Title:</label>
         <input
-          type="title"
+          type="text"
           class="form-control"
           id="title"
           name="title"
           required
         />
         <label for="author">Author: </label>
         <input
-          type="author"
+          type="text"
           class="form-control"
           id="author"
           name="author"
@@ -65,7 +63,7 @@ <h1>Library</h1>
           type="submit"
           value="Submit"
           class="btn btn-primary"
-          onclick="submit();"
+          onclick="submit()"
         />
       </div>
     </div>
@@ -90,7 +88,5 @@ <h1>Library</h1>
         </tr>
       </tbody>
     </table>
-
-    <script src="script.js"></script>
   </body>
 </html>
diff --git a/debugging/book-library/script.js b/debugging/book-library/script.js
@@ -6,98 +6,90 @@ window.addEventListener("load", function (e) {
 });
 
 function populateStorage() {
-  if (myLibrary.length == 0) {
-    let book1 = new Book("Robison Crusoe", "Daniel Defoe", "252", true);
+  if (myLibrary.length === 0) {
+    let book1 = new Book("Robison Crusoe", "Daniel Defoe", 252, true);
     let book2 = new Book(
       "The Old Man and the Sea",
       "Ernest Hemingway",
-      "127",
+      127,
       true
     );
     myLibrary.push(book1);
     myLibrary.push(book2);
-    render();
   }
 }
 
-const title = document.getElementById("title");
-const author = document.getElementById("author");
-const pages = document.getElementById("pages");
-const check = document.getElementById("check");
+const titleInput = document.getElementById("title");
+const authorInput = document.getElementById("author");
+const pagesInput = document.getElementById("pages");
+const checkInput = document.getElementById("check");
 
-//check the right input from forms and if its ok -> add the new book (object in array)
-//via Book function and start render function
 function submit() {
-  if (
-    title.value == null ||
-    title.value == "" ||
-    pages.value == null ||
-    pages.value == ""
-  ) {
-    alert("Please fill all fields!");
+  const title = titleInput.value.trim();
+  const author = authorInput.value.trim();
+  const pages = parseInt(pagesInput.value);
+  const isRead = checkInput.checked;
+
+  if (!title || !author || isNaN(pages) || pages <= 0) {
+    alert("Please fill all fields correctly!");
     return false;
   } else {
-    let book = new Book(title.value, title.value, pages.value, check.checked);
-    library.push(book);
+    let book = new Book(title, author, pages, isRead);
+    myLibrary.push(book);
     render();
   }
 }
 
-function Book(title, author, pages, check) {
-  this.title = title;
-  this.author = author;
-  this.pages = pages;
-  this.check = check;
+class Book {
+  constructor(title, author, pages, isRead) {
+    this.title = title;
+    this.author = author;
+    this.pages = pages;
+    this.isRead = isRead;
+  }
 }
 
 function render() {
-  let table = document.getElementById("display");
-  let rowsNumber = table.rows.length;
-  //delete old table
-  for (let n = rowsNumber - 1; n > 0; n-- {
-    table.deleteRow(n);
-  }
-  //insert updated row and cells
-  let length = myLibrary.length;
-  for (let i = 0; i < length; i++) {
-    let row = table.insertRow(1);
+  let tableBody = document.querySelector("#display tbody");
+  tableBody.innerHTML = "";
+
+  for (let i = 0; i < myLibrary.length; i++) {
+    let row = tableBody.insertRow();
     let titleCell = row.insertCell(0);
     let authorCell = row.insertCell(1);
     let pagesCell = row.insertCell(2);
-    let wasReadCell = row.insertCell(3);
+    let readCell = row.insertCell(3);
     let deleteCell = row.insertCell(4);
-    titleCell.innerHTML = myLibrary[i].title;
-    authorCell.innerHTML = myLibrary[i].author;
-    pagesCell.innerHTML = myLibrary[i].pages;
 
-    //add and wait for action for read/unread button
-    let changeBut = document.createElement("button");
-    changeBut.id = i;
-    changeBut.className = "btn btn-success";
-    wasReadCell.appendChild(changeBut);
-    let readStatus = "";
-    if (myLibrary[i].check == false) {
-      readStatus = "Yes";
-    } else {
-      readStatus = "No";
-    }
-    changeBut.innerText = readStatus;
+    titleCell.textContent = myLibrary[i].title;
+    authorCell.textContent = myLibrary[i].author;
+    pagesCell.textContent = myLibrary[i].pages;
 
-    changeBut.addEventListener("click", function () {
-      myLibrary[i].check = !myLibrary[i].check;
+    // Read status button
+    let readBtn = document.createElement("button");
+    readBtn.className = "btn btn-success";
+    readCell.appendChild(readBtn);
+
+    readBtn.textContent = myLibrary[i].isRead ? "Yes" : "No";
+
+    readBtn.addEventListener("click", function () {
+      myLibrary[i].isRead = !myLibrary[i].isRead;
       render();
     });
 
-    //add delete button to every row and render again
-    let delButton = document.createElement("button");
-    delBut.id = i + 5;
-    deleteCell.appendChild(delBut);
-    delBut.className = "btn btn-warning";
-    delBut.innerHTML = "Delete";
-    delBut.addEventListener("clicks", function () {
-      alert(`You've deleted title: ${myLibrary[i].title}`);
+    // Delete button
+    let deleteBtn = document.createElement("button");
+    deleteCell.appendChild(deleteBtn);
+    deleteBtn.className = "btn btn-warning";
+    deleteBtn.textContent = "Delete";
+
+    deleteBtn.addEventListener("click", function () {
+      const deletedTitle = myLibrary[i].title;
       myLibrary.splice(i, 1);
       render();
+      alert(`You've deleted: ${deletedTitle}`);
     });
   }
 }
+
+window.submit = submit;