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Library
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Add books to your virtual library
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My Library
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+ | Title |
+ Author |
+ Pages |
+ Read |
+ Delete |
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- | Title |
- Author |
- Number of Pages |
- Read |
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diff --git a/debugging/book-library/script.js b/debugging/book-library/script.js
index 75ce6c1d3..b252e3677 100644
--- a/debugging/book-library/script.js
+++ b/debugging/book-library/script.js
@@ -1,103 +1,129 @@
-let myLibrary = [];
+const myLibrary = [];
-window.addEventListener("load", function (e) {
- populateStorage();
- render();
-});
+const bookForm = document.getElementById("bookForm");
+const titleInput = document.getElementById("title");
+const authorInput = document.getElementById("author");
+const pagesInput = document.getElementById("pages");
+const checkInput = document.getElementById("check");
+
+function Book(title, author, pages, read) {
+ this.title = title;
+ this.author = author;
+ this.pages = pages;
+ this.read = !!read;
+}
function populateStorage() {
- if (myLibrary.length == 0) {
- let book1 = new Book("Robison Crusoe", "Daniel Defoe", "252", true);
- let book2 = new Book(
+ if (myLibrary.length === 0) {
+ const book1 = new Book("Robinson Crusoe", "Daniel Defoe", 252, true);
+ const book2 = new Book(
"The Old Man and the Sea",
"Ernest Hemingway",
- "127",
+ 127,
true
);
- myLibrary.push(book1);
- myLibrary.push(book2);
- render();
+ myLibrary.push(book1, book2);
}
}
-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 == ""
- ) {
- alert("Please fill all fields!");
+function addBook() {
+ const title = titleInput.value.trim();
+ const author = authorInput.value.trim();
+ const pagesRaw = pagesInput.value.trim();
+ const pages = Number(pagesRaw);
+
+ // Native "required"/"min"/"step" already ran before this handler fires
+ // (see bookForm's submit listener below), so this is a second layer
+ // for things HTML attributes can't express, like whitespace-only text.
+ if (!title || !author || !pagesRaw || !Number.isFinite(pages) || pages <= 0) {
+ alert("Please fill all fields with valid values!");
return false;
- } else {
- let book = new Book(title.value, title.value, pages.value, check.checked);
- library.push(book);
- render();
}
-}
-function Book(title, author, pages, check) {
- this.title = title;
- this.author = author;
- this.pages = pages;
- this.check = check;
+ const book = new Book(title, author, pages, checkInput.checked);
+ myLibrary.push(book);
+
+ bookForm.reset();
+
+ render();
+ return true;
}
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 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;
+ const table = document.getElementById("display");
+ const tbody = table.getElementsByTagName("tbody")[0];
+
+ tbody.innerHTML = "";
+
+ myLibrary.forEach((book) => {
+ const row = document.createElement("tr");
+
+ const titleCell = document.createElement("td");
+ titleCell.textContent = book.title;
+ row.appendChild(titleCell);
+
+ const authorCell = document.createElement("td");
+ authorCell.textContent = book.author;
+ row.appendChild(authorCell);
+
+ const pagesCell = document.createElement("td");
+ pagesCell.textContent = book.pages;
+ row.appendChild(pagesCell);
+
+ const readCell = document.createElement("td");
+ const toggleReadBtn = document.createElement("button");
+ toggleReadBtn.className = "btn btn-sm btn-outline-primary";
+ toggleReadBtn.textContent = book.read ? "Yes" : "No";
+ toggleReadBtn.addEventListener("click", () => {
+ book.read = !book.read;
render();
});
+ readCell.appendChild(toggleReadBtn);
+ row.appendChild(readCell);
+
+ const deleteCell = document.createElement("td");
+ const deleteBtn = document.createElement("button");
+ deleteBtn.className = "btn btn-sm btn-danger";
+ deleteBtn.textContent = "Delete";
+ deleteBtn.addEventListener("click", () => {
+ const idx = myLibrary.indexOf(book);
+ if (idx === -1) return;
- //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: ${myLibrary[i].title}`);
- myLibrary.splice(i, 1);
+ myLibrary.splice(idx, 1);
render();
+ showToast(`Deleted "${book.title}"`);
});
+ deleteCell.appendChild(deleteBtn);
+ row.appendChild(deleteCell);
+
+ tbody.appendChild(row);
+ });
+}
+
+function showToast(message, duration = 2000) {
+ const toast = document.getElementById("toast");
+ if (!toast) {
+ console.log(message);
+ return;
}
+ toast.textContent = message;
+ toast.classList.add("show");
+ clearTimeout(showToast._timer);
+ showToast._timer = setTimeout(() => {
+ toast.classList.remove("show");
+ }, duration);
}
+
+bookForm.addEventListener("submit", (event) => {
+ event.preventDefault();
+ addBook();
+});
+
+document.addEventListener("DOMContentLoaded", () => {
+ populateStorage();
+ render();
+});
+
+
+
+