CodeYourFuture · MehrozMunir · Apr 13, 2026
diff --git a/debugging/book-library/index.html b/debugging/book-library/index.html
@@ -1,20 +1,20 @@
 <!DOCTYPE html>
-<html>
+<html lang="en">
   <head>
-    <title> </title>
     <meta
-      charset="utf-8"
+      charset="utf-8" >
+    <meta
       name="viewport"
-      content="width=device-width, initial-scale=1.0"
-    />
+      content="width=device-width, initial-scale=1.0" >
+    <title>My Book Library</title>
     <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>
     <link
       rel="stylesheet"
       href="https://maxcdn.bootstrapcdn.com/bootstrap/4.4.1/css/bootstrap.min.css"
-    />
-    <link rel="stylesheet" type="text/css" href="style.css" />
+    >
+    <link rel="stylesheet" type="text/css" href="style.css" >
   </head>
 
   <body>
@@ -28,69 +28,70 @@ <h1>Library</h1>
     </button>
 
     <div id="demo" class="collapse">
+      <form id="bookForm" onsubmit="return addNewBook(event)">
       <div class="form-group">
         <label for="title">Title:</label>
         <input
-          type="title"
+          type="text"
           class="form-control"
           id="title"
           name="title"
           required
-        />
+          pattern=".*\S.*" 
+          title="The title cannot be empty or consist only of spaces."
+        >
         <label for="author">Author: </label>
         <input
-          type="author"
+          type="text"
           class="form-control"
           id="author"
           name="author"
           required
-        />
+          pattern="^[A-Za-z\.\-\s]*[A-Za-z\.\-][A-Za-z\.\-\s]*$"
+          title="Author name must contain letters and cannot be only spaces."
+        >
         <label for="pages">Pages:</label>
         <input
           type="number"
           class="form-control"
           id="pages"
           name="pages"
           required
-        />
+          min="1"
+          step="1"
+          pattern=""
+        >
         <label class="form-check-label">
           <input
             type="checkbox"
             class="form-check-input"
             id="check"
             value=""
-          />Read
+          >Read
         </label>
         <input
           type="submit"
           value="Submit"
           class="btn btn-primary"
-          onclick="submit();"
-        />
+        >
       </div>
+    </form>
     </div>
-
+    <p id="deleted-row-message"></p>
     <table class="table" id="display">
       <thead class="thead-dark">
         <tr>
           <th>Title</th>
           <th>Author</th>
           <th>Number of Pages</th>
           <th>Read</th>
-          <th></th>
+          <th>Delete</th>
         </tr>
       </thead>
       <tbody>
-        <tr>
-          <td></td>
-          <td></td>
-          <td></td>
-          <td></td>
-          <td></td>
-        </tr>
       </tbody>
     </table>
 
-    <script src="script.js"></script>
+    <script src="script.js" ></script>
   </body>
 </html>
diff --git a/debugging/book-library/script.js b/debugging/book-library/script.js
@@ -1,14 +1,13 @@
 let myLibrary = [];
 
-window.addEventListener("load", function (e) {
+window.addEventListener("load", function () {
   populateStorage();
-  render();
 });
 
 function populateStorage() {
   if (myLibrary.length == 0) {
-    let book1 = new Book("Robison Crusoe", "Daniel Defoe", "252", true);
-    let book2 = new Book(
+    const book1 = new Book("Robison Crusoe", "Daniel Defoe", "252", true);
+    const book2 = new Book(
       "The Old Man and the Sea",
       "Ernest Hemingway",
       "127",
@@ -20,26 +19,38 @@ function populateStorage() {
   }
 }
 
-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");
+const deletedRowMessage = document.getElementById("deleted-row-message");
 
 //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() {
+function addNewBook(event) {
+  //Prevent the page from refreshing
+  event.preventDefault();
+
+  const titleInputValue = titleInput.value.toString().trim();
+  const authorInputValue = authorInput.value.toString().trim();
   if (
-    title.value == null ||
-    title.value == "" ||
-    pages.value == null ||
-    pages.value == ""
+    titleInputValue === "" ||
+    pagesInput.value === "" ||
+    authorInputValue === ""
   ) {
     alert("Please fill all fields!");
     return false;
   } else {
-    let book = new Book(title.value, title.value, pages.value, check.checked);
-    library.push(book);
+    const book = new Book(
+      titleInput.value,
+      authorInput.value,
+      pagesInput.value,
+      checkInput.checked
+    );
+    myLibrary.push(book);
     render();
+    // Clear the form after adding
+    document.getElementById("bookForm").reset();
   }
 }
 
@@ -51,51 +62,49 @@ function Book(title, author, pages, check) {
 }
 
 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);
-  }
+  const tableBody = document.querySelector("#display tbody");
+
+  //clear old table
+  tableBody.innerHTML = "";
+
   //insert updated row and cells
-  let length = myLibrary.length;
+  const length = myLibrary.length;
   for (let i = 0; i < length; i++) {
-    let row = table.insertRow(1);
-    let titleCell = row.insertCell(0);
-    let authorCell = row.insertCell(1);
-    let pagesCell = row.insertCell(2);
-    let wasReadCell = row.insertCell(3);
-    let deleteCell = row.insertCell(4);
-    titleCell.innerHTML = myLibrary[i].title;
-    authorCell.innerHTML = myLibrary[i].author;
-    pagesCell.innerHTML = myLibrary[i].pages;
+    const row = tableBody.insertRow();
+    const titleCell = row.insertCell(0);
+    const authorCell = row.insertCell(1);
+    const pagesCell = row.insertCell(2);
+    const wasReadCell = row.insertCell(3);
+    const deleteCell = row.insertCell(4);
+    titleCell.textContent = myLibrary[i].title;
+    authorCell.textContent = myLibrary[i].author;
+    pagesCell.textContent = 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);
+    const changeButton = document.createElement("button");
+    changeButton.className = "btn btn-success";
+    wasReadCell.appendChild(changeButton);
     let readStatus = "";
-    if (myLibrary[i].check == false) {
-      readStatus = "Yes";
-    } else {
-      readStatus = "No";
-    }
-    changeBut.innerText = readStatus;
+    myLibrary[i].check ? (readStatus = "Yes") : (readStatus = "No");
+    changeButton.innerText = readStatus;
 
-    changeBut.addEventListener("click", function () {
+    changeButton.addEventListener("click", function () {
       myLibrary[i].check = !myLibrary[i].check;
       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}`);
+    const deleteButton = document.createElement("button");
+    deleteCell.appendChild(deleteButton);
+    deleteButton.className = "btn btn-warning";
+    deleteButton.innerText = "Delete";
+    deleteButton.addEventListener("click", function () {
+      deletedRowMessage.classList.remove("hidden-deleted-message");
+      deletedRowMessage.innerText = `You've deleted the book: ${myLibrary[i].title}`;
+      // Hide it after 3 seconds
+      setTimeout(() => {
+        deletedRowMessage.classList.add("hidden-deleted-message");
+      }, 3000);
       myLibrary.splice(i, 1);
       render();
     });

diff --git a/debugging/book-library/style.css b/debugging/book-library/style.css
@@ -17,3 +17,17 @@
 button.btn-info {
   margin: 20px;
 }
+
+.jumbotron{
+  width: 100%;
+  height: 1%;
+  padding: 10px 10px 10px 10px;
+}
+#deleted-row-message{
+  transition: opacity 0.5s ease;
+  opacity: 1;
+  color:red;
+}
+.hidden-deleted-message {
+  opacity: 0 !important;
+}