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Glasgow| 26-ITP-May| Alasdair MacDonald| Sprint 2 | Book Library #486

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Glasgow| 26-ITP-May| Alasdair MacDonald| Sprint 2 | Book Library #486

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90bc528
Debugging task - fixed bugs in library app (render, add, delete, read…
MacDonald91 Apr 10, 2026
eaa6e32
fixed code and refactored
MacDonald91 Apr 20, 2026
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49 changes: 24 additions & 25 deletions debugging/book-library/index.html
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Original file line number Diff line number Diff line change
@@ -1,19 +1,19 @@
<!DOCTYPE html>
<html>
<head>
<title> </title>
<meta
charset="utf-8"
name="viewport"
content="width=device-width, initial-scale=1.0"
/>
<title>Library App</title>
<meta charset="utf-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />

<!-- Bootstrap -->
<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>

Expand All @@ -23,28 +23,32 @@ <h1>Library</h1>
<p>Add books to your virtual library</p>
</div>

<!-- Toggle Form -->
<button data-toggle="collapse" data-target="#demo" class="btn btn-info">
Add new book
</button>

<!-- Form -->
<div id="demo" class="collapse">
<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>

<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"
Expand All @@ -53,23 +57,23 @@ <h1>Library</h1>
name="pages"
required
/>

<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();"
/>

<button class="btn btn-primary mt-2" onclick="submit()">
Submit
</button>
</div>
</div>

<!-- Table -->
<table class="table" id="display">
<thead class="thead-dark">
<tr>
Expand All @@ -81,16 +85,11 @@ <h1>Library</h1>
</tr>
</thead>
<tbody>
<tr>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
</tr>
<!-- JS will populate rows here -->
</tbody>
</table>

<!-- Scripts -->
<script src="script.js"></script>
</body>
</html>
</html>
154 changes: 76 additions & 78 deletions debugging/book-library/script.js
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Original file line number Diff line number Diff line change
@@ -1,103 +1,101 @@
let myLibrary = [];

window.addEventListener("load", function (e) {
window.addEventListener("load", () => {
populateStorage();
render();
});

// ------------------
// DATA SETUP
// ------------------
function populateStorage() {
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",
true
if (myLibrary.length === 0) {
myLibrary.push(
new Book("Robinson Crusoe", "Daniel Defoe", 252, true),
new Book("The Old Man and the Sea", "Ernest Hemingway", 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");
function Book(title, author, pages, alreadyRead) {
this.title = title;
this.author = author;
this.pages = pages;
this.alreadyRead = alreadyRead;
}

// ------------------
// DOM ELEMENTS
// ------------------
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
// ------------------
// ADD BOOK
// ------------------
function submit() {
if (
title.value == null ||
title.value == "" ||
pages.value == null ||
pages.value == ""
) {
if (!titleInput.value || !authorInput.value || !pagesInput.value) {
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;
}
}

function Book(title, author, pages, check) {
this.title = title;
this.author = author;
this.pages = pages;
this.check = check;
const book = new Book(
titleInput.value,
authorInput.value,
pagesInput.value,
checkInput.checked
);

myLibrary.push(book);
render();
}

// ------------------
// RENDER
// ------------------
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 table = document.getElementById("display");

// clear old rows
while (table.rows.length > 1) {
table.deleteRow(1);
}
//insert updated row and cells
let 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;

//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;

myLibrary.forEach((book, index) => {
const row = table.insertRow();

row.insertCell(0).textContent = book.title;
row.insertCell(1).textContent = book.author;
row.insertCell(2).textContent = book.pages;

// READ TOGGLE
const readCell = row.insertCell(3);
const toggleBtn = document.createElement("button");

toggleBtn.className = "btn btn-success";
toggleBtn.textContent = book.alreadyRead ? "Yes" : "No";

toggleBtn.addEventListener("click", () => {
book.alreadyRead = !book.alreadyRead;
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}`);
myLibrary.splice(i, 1);
readCell.appendChild(toggleBtn);

// DELETE BUTTON
const deleteCell = row.insertCell(4);
const deleteBtn = document.createElement("button");

deleteBtn.className = "btn btn-warning";
deleteBtn.textContent = "Delete";

deleteBtn.addEventListener("click", () => {
myLibrary.splice(index, 1);
render();
});
}
}

deleteCell.appendChild(deleteBtn);
});
}
10 changes: 5 additions & 5 deletions debugging/book-library/style.css
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Original file line number Diff line number Diff line change
@@ -1,19 +1,19 @@
.form-group {
width: 400px;
height: 300px;
align-self: left;
padding-left: 20px;
}

.btn {
/* Only target your specific button */
#demo .btn {
display: block;
margin-top: 10px;
}

.form-check-label {
padding-left: 20px;
margin: 5px 0px 5px 0px;
margin: 5px 0;
}

button.btn-info {
margin: 20px;
}
}
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