diff --git a/debugging/book-library/index.html b/debugging/book-library/index.html
index 23acfa71..1e3a2e69 100644
--- a/debugging/book-library/index.html
+++ b/debugging/book-library/index.html
@@ -1,20 +1,17 @@
-
+
-
-
+ Library
+
+
-
+ >
+
@@ -31,42 +28,44 @@ Library
+ >
+ >
+ >
+ >
@@ -91,6 +90,6 @@ Library
-
+
diff --git a/debugging/book-library/script.js b/debugging/book-library/script.js
index 75ce6c1d..14fa0c99 100644
--- a/debugging/book-library/script.js
+++ b/debugging/book-library/script.js
@@ -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) {
@@ -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}`);
});
}
}