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West Midlands | 25 Sep ITP | Hadi Vahidi | Sprint 2 | Book library #356

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West Midlands | 25 Sep ITP | Hadi Vahidi | Sprint 2 | Book library #356

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b417121
Fix book submission logic and improve event handling in the library app
HadiVahidi20 Dec 14, 2025
1c7e946
Fix HTML validation errors
HadiVahidi20 Dec 20, 2025
3233ca6
Enhance book submission logic and input validation in the library app
HadiVahidi20 Dec 20, 2025
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35 changes: 17 additions & 18 deletions debugging/book-library/index.html
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Original file line number Diff line number Diff line change
@@ -1,20 +1,17 @@
<!DOCTYPE html>
<html>
<html lang="en">
<head>
<title> </title>
<meta
charset="utf-8"
name="viewport"
content="width=device-width, initial-scale=1.0"
/>
<title>Library</title>
<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>
<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>
Expand All @@ -31,42 +28,44 @@ <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"
required
/>
>
<label for="pages">Pages:</label>
<input
type="number"
class="form-control"
id="pages"
name="pages"
min="1"
step="1"
required
/>
>
<label class="form-check-label">
<input
type="checkbox"
class="form-check-input"
id="check"
value=""
/>Read
>Read
</label>
<input
type="submit"
value="Submit"
id="submit-btn"
class="btn btn-primary"
onclick="submit();"
/>
>
</div>
</div>

Expand All @@ -91,6 +90,6 @@ <h1>Library</h1>
</tbody>
</table>

<script src="script.js"></script>
<script src="script.js" type="module"></script>
</body>
</html>
113 changes: 57 additions & 56 deletions debugging/book-library/script.js
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Original file line number Diff line number Diff line change
@@ -1,46 +1,57 @@
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);
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 readCheck = document.getElementById("check");
const submitButton = document.getElementById("submit-btn");
const tableBody = document.querySelector("#display tbody");

//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 == ""
) {
submitButton.addEventListener("click", submitBook);

// Check the inputs. If they are OK, add a new book and render the table.
function submitBook() {
const titleValue = titleInput.value.trim();
const authorValue = authorInput.value.trim();
const pagesValue = pagesInput.value.trim();

if (titleValue === "" || authorValue === "" || pagesValue === "") {
alert("Please fill all fields!");
return false;
} else {
let book = new Book(title.value, title.value, pages.value, check.checked);
library.push(book);
render();
return;
}

const pagesNumber = Number(pagesValue);
if (!Number.isInteger(pagesNumber) || pagesNumber <= 0) {
alert("Please enter a valid page count!");
return;
}

let book = new Book(titleValue, authorValue, pagesNumber, readCheck.checked);
myLibrary.push(book);
render();
titleInput.value = "";
authorInput.value = "";
pagesInput.value = "";
readCheck.checked = false;
}

function Book(title, author, pages, check) {
Expand All @@ -51,53 +62,43 @@ 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);
}
//insert updated row and cells
tableBody.innerHTML = "";

// Insert the updated rows and cells.
let length = myLibrary.length;
for (let i = 0; i < length; i++) {
let row = table.insertRow(1);
let book = myLibrary[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.textContent = book.title;
authorCell.textContent = book.author;
pagesCell.textContent = 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;
// Add the read/unread button.
let toggleReadButton = document.createElement("button");
toggleReadButton.className = "btn btn-success";
toggleReadButton.textContent = book.check ? "Yes" : "No";
wasReadCell.appendChild(toggleReadButton);

changeBut.addEventListener("click", function () {
myLibrary[i].check = !myLibrary[i].check;
toggleReadButton.addEventListener("click", function () {
book.check = !book.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}`);
// Add the delete button for each row.
let deleteButton = document.createElement("button");
deleteButton.className = "btn btn-warning";
deleteButton.textContent = "Delete";
deleteCell.appendChild(deleteButton);
deleteButton.addEventListener("click", function () {
let removedTitle = book.title;
myLibrary.splice(i, 1);
render();
alert(`You've deleted title: ${removedTitle}`);
});
}
}