CodeYourFuture · hibosharif202504 · Jul 28, 2025 · Jul 28, 2025 · Jul 28, 2025 · Jul 28, 2025
diff --git a/debugging/book-library/index.html b/debugging/book-library/index.html
@@ -1,96 +1,68 @@
 <!DOCTYPE html>
-<html>
-  <head>
-    <title> </title>
-    <meta
-      charset="utf-8"
-      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>
-    <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" />
-  </head>
+<html lang="en">
 
-  <body>
-    <div class="jumbotron text-center">
-      <h1>Library</h1>
-      <p>Add books to your virtual library</p>
-    </div>
+<head>
+  <title>Book Library</title>
+  <meta charset="utf-8">
+  <meta name="viewport" content="width=device-width, initial-scale=1.0">
 
-    <button data-toggle="collapse" data-target="#demo" class="btn btn-info">
-      Add new book
-    </button>
+  <!-- Bootstrap and jQuery -->
+  <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>
 
-    <div id="demo" class="collapse">
+  <!-- Stylesheets -->
+  <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">
+</head>
+
+<body>
+  <div class="jumbotron text-center">
+    <h1>Library</h1>
+    <p>Add books to your virtual library</p>
+  </div>
+
+  <button type="button" data-toggle="collapse" data-target="#demo" class="btn btn-info" aria-expanded="false"
+  aria-controls="demo" id="addBookBtn">
+    Add new book
+  </button>
+
+  <div id="demo" class="collapse" aria-labelledby="addBookBtn">
+    <form id="book-form">
       <div class="form-group">
         <label for="title">Title:</label>
-        <input
-          type="title"
-          class="form-control"
-          id="title"
-          name="title"
-          required
-        />
-        <label for="author">Author: </label>
-        <input
-          type="author"
-          class="form-control"
-          id="author"
-          name="author"
-          required
-        />
-        <label for="pages">Pages:</label>
-        <input
-          type="number"
-          class="form-control"
-          id="pages"
-          name="pages"
-          required
-        />
+        <input type="text" class="form-control" id="title" required>
+
+        <label for="author">Author:</label>
+        <input type="text" class="form-control" id="author" required>
+
+        <label for="pages">Number of Pages:</label>
+        <input type="number" class="form-control" id="pages" min="1" required>
+
         <label class="form-check-label">
-          <input
-            type="checkbox"
-            class="form-check-input"
-            id="check"
-            value=""
-          />Read
+          <input type="checkbox" class="form-check-input" id="check" value="read" name="read">Read
         </label>
-        <input
-          type="submit"
-          value="Submit"
-          class="btn btn-primary"
-          onclick="submit();"
-        />
+
+        <input type="submit" value="Submit" class="btn btn-primary">
       </div>
-    </div>
+    </form>
+  </div>
+
+  <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>Delete</th>
+      </tr>
+    </thead>
+    <tbody></tbody>
+  </table>
 
-    <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>
-        </tr>
-      </thead>
-      <tbody>
-        <tr>
-          <td></td>
-          <td></td>
-          <td></td>
-          <td></td>
-          <td></td>
-        </tr>
-      </tbody>
-    </table>
+  <!-- Your main script -->
+  <script src="script.js"></script>
+</body>
 
-    <script src="script.js"></script>
-  </body>
-</html>
+</html>
diff --git a/debugging/book-library/script.js b/debugging/book-library/script.js
@@ -1,47 +1,58 @@
-let myLibrary = [];
+const myLibrary = JSON.parse(localStorage.getItem("library")) || [];
 
 window.addEventListener("load", function (e) {
   populateStorage();
   render();
 });
 
 function populateStorage() {
-  if (myLibrary.length == 0) {
-    let book1 = new Book("Robison Crusoe", "Daniel Defoe", "252", true);
+  if (myLibrary.length === 0) {
+    let book1 = new Book("Robinson Crusoe", "Daniel Defoe", 252, true);
     let book2 = new Book(
       "The Old Man and the Sea",
       "Ernest Hemingway",
-      "127",
-      true
-    );
-    myLibrary.push(book1);
-    myLibrary.push(book2);
-    render();
+       127,
+      true);
+    myLibrary.push(book1, book2);
+    localStorage.setItem("library", JSON.stringify(myLibrary));
   }
 }
+const titleEl = document.getElementById("title");
+const authorEl = document.getElementById("author");
+const pagesEl = document.getElementById("pages");
+const checkEl = document.getElementById("check");
 
-const title = document.getElementById("title");
-const author = document.getElementById("author");
-const pages = document.getElementById("pages");
-const check = 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 == ""
-  ) {
+    titleEl.value.trim() === "" ||
+    authorEl.value.trim() === "" ||
+    pagesEl.value.trim() === "" 
+
+   ) {
     alert("Please fill all fields!");
     return false;
-  } else {
-    let book = new Book(title.value, title.value, pages.value, check.checked);
-    library.push(book);
+  } 
+  let pageCount = parseInt(pagesEl.value.trim());
+  if (pageCount <= 0 || isNaN(pageCount)) {
+    alert("Please enter a valid page number");
+    return false;
+  }
+    let book = new Book(
+      titleEl.value.trim(),
+       authorEl.value.trim(),
+        pageCount,
+         checkEl.checked
+    );   
+    myLibrary.push(book);
+    localStorage.setItem("library", JSON.stringify(myLibrary));
     render();
+    document.getElementById("book-form").reset();
+    $("#demo").collapse("hide");
   }
-}
+
 
 function Book(title, author, pages, check) {
   this.title = title;
@@ -51,53 +62,52 @@ 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");
+  tableBody.innerHTML = "";//clears the rows
+
   //insert updated row and cells
-  let length = myLibrary.length;
-  for (let i = 0; i < length; i++) {
-    let row = table.insertRow(1);
+    myLibrary.forEach((book,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 deleteCell = row.insertCell(4);
-    titleCell.innerHTML = myLibrary[i].title;
-    authorCell.innerHTML = myLibrary[i].author;
-    pagesCell.innerHTML = myLibrary[i].pages;
+
+    titleCell.innerText = book.title;
+    authorCell.innerText = book.author;
+    pagesCell.innerText = book.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;
-
-    changeBut.addEventListener("click", function () {
-      myLibrary[i].check = !myLibrary[i].check;
+    changeBut.innerText = book.check ? "Yes" : "No";
+    changeBut.addEventListener("click",() => {
+      book.check = !book.check;
+      localStorage.setItem("library", JSON.stringify(myLibrary));
       render();
     });
+    wasReadCell.appendChild(changeBut);
 
     //add delete button to every row and render again
-    let delButton = document.createElement("button");
-    delBut.id = i + 5;
-    deleteCell.appendChild(delBut);
+    let delBut = document.createElement("button");
     delBut.className = "btn btn-warning";
     delBut.innerHTML = "Delete";
-    delBut.addEventListener("clicks", function () {
-      alert(`You've deleted title: ${myLibrary[i].title}`);
+    delBut.addEventListener("click",() => {
+
       myLibrary.splice(i, 1);
+      localStorage.setItem("library", JSON.stringify(myLibrary));
       render();
+      alert(`You've deleted title: ${book.title}`);
+
+
     });
-  }
+    deleteCell.appendChild(delBut);
+  });
 }
+// Run submit() when the form is submitted
+document.getElementById("book-form").addEventListener("submit", function(e) {
+  e.preventDefault();
+  submit();
+});
diff --git a/debugging/book-library/style.css b/debugging/book-library/style.css
@@ -1,19 +1,25 @@
 .form-group {
-  width: 400px;
-  height: 300px;
-  align-self: left;
-  padding-left: 20px;
+  max-width: 400px;
+  margin: 20px auto;
+  padding: 20px;
+  background-color: #f8f9fa;
+  border-radius: 10px;
 }
 
 .btn {
-  display: block;
+  margin: 10px 0;
 }
 
 .form-check-label {
-  padding-left: 20px;
-  margin: 5px 0px 5px 0px;
+  margin: 10px 0;
+  display: inline-block;
+}
+
+input[type="submit"] {
+  margin-top: 10px;
 }
 
 button.btn-info {
-  margin: 20px;
+  margin: 20px auto;
+  display: block;
 }