diff --git a/debugging/book-library/index.html b/debugging/book-library/index.html
index 23acfa71e..7835cf09c 100644
--- a/debugging/book-library/index.html
+++ b/debugging/book-library/index.html
@@ -1,7 +1,7 @@
-
+
-
+ Book Library
Library
Library
class="form-control"
id="pages"
name="pages"
+ min="1"
required
/>
@@ -80,15 +81,7 @@ Library
|
-
-
- |
- |
- |
- |
- |
-
-
+
diff --git a/debugging/book-library/script.js b/debugging/book-library/script.js
index 75ce6c1d3..9d788df72 100644
--- a/debugging/book-library/script.js
+++ b/debugging/book-library/script.js
@@ -1,22 +1,23 @@
let myLibrary = [];
-window.addEventListener("load", function (e) {
- populateStorage();
+window.addEventListener("load", function () {
+ addDefaultBooks();
render();
});
-function populateStorage() {
- if (myLibrary.length == 0) {
- let book1 = new Book("Robison Crusoe", "Daniel Defoe", "252", true);
+function addDefaultBooks() {
+ 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",
+ 127,
true
);
+
myLibrary.push(book1);
myLibrary.push(book2);
- render();
}
}
@@ -25,79 +26,88 @@ 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() {
+function addBook() {
+ // Check that all required information has been entered
if (
- title.value == null ||
- title.value == "" ||
- pages.value == null ||
- pages.value == ""
+ title.value.trim() === "" ||
+ author.value.trim() === "" ||
+ pages.value.trim() === "" ||
+ Number(pages.value) <= 0
) {
- alert("Please fill all fields!");
- return false;
- } else {
- let book = new Book(title.value, title.value, pages.value, check.checked);
- library.push(book);
- render();
+ alert("Please enter a title, author, and a valid number of pages!");
+ return;
}
+
+ let book = new Book(
+ title.value.trim(),
+ author.value.trim(),
+ Number(pages.value),
+ check.checked
+ );
+
+ myLibrary.push(book);
+
+ render();
+
+ // Clear form
+ title.value = "";
+ author.value = "";
+ pages.value = "";
+ check.checked = false;
}
-function Book(title, author, pages, check) {
+function Book(title, author, pages, read) {
this.title = title;
this.author = author;
this.pages = pages;
- this.check = check;
+ this.read = read;
}
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);
+
+ // Delete old rows, keeping the header
+ 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);
+
+ // Add each book to the table
+ for (let i = 0; i < myLibrary.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
+ titleCell.textContent = myLibrary[i].title;
+ authorCell.textContent = myLibrary[i].author;
+ pagesCell.textContent = myLibrary[i].pages;
+
+ // 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.textContent = myLibrary[i].read ? "Yes" : "No";
changeBut.addEventListener("click", function () {
- myLibrary[i].check = !myLibrary[i].check;
+ myLibrary[i].read = !myLibrary[i].read;
render();
});
- //add delete button to every row and render again
+ wasReadCell.appendChild(changeBut);
+
+ // Delete button
let delButton = document.createElement("button");
- delBut.id = i + 5;
- deleteCell.appendChild(delBut);
- delBut.className = "btn btn-warning";
- delBut.innerHTML = "Delete";
- delBut.addEventListener("clicks", function () {
+ delButton.className = "btn btn-warning";
+ delButton.textContent = "Delete";
+
+ delButton.addEventListener("click", function () {
alert(`You've deleted title: ${myLibrary[i].title}`);
myLibrary.splice(i, 1);
render();
});
+
+ deleteCell.appendChild(delButton);
}
}