Library
/>
add the new book (object in array)
//via Book function and start render function
function submit() {
+
+ // Date : 9/8/2026
+ // Purpose : Fix the problem "3. It uses the title name as the author name"
+ // Change : replace the second title with author.value to fix the bug
+ let titleValue = title.value.trim();
+ let authorValue = author.value.trim();
+ let pagesValue = pages.value.trim();
+
if (
- title.value == null ||
- title.value == "" ||
- pages.value == null ||
- pages.value == ""
+ 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();
+ displayStatusMessage("Please fill all fields!", true);
+ return;
}
+
+ let book = new Book(titleValue, authorValue, pagesValue, check.checked);
+
+ myLibrary.push(book);
+ render();
+
}
function Book(title, author, pages, check) {
@@ -52,52 +79,65 @@ 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
- let length = myLibrary.length;
- for (let i = 0; i < length; i++) {
- let row = table.insertRow(1);
+ table.innerHTML = "";
+
+ let thead = document.createElement("thead");
+ thead.className = "thead-dark";
+ thead.innerHTML = `
+
+
Title
+
Author
+
Number of Pages
+
Read
+
+
+ `;
+ table.appendChild(thead);
+
+ // Date : 9/8/2026
+ // Purpose : Fix the problem "1. Website loads but doesn't show any books"
+ // Change : Missing ) → script stops executing → nothing renders and add back the closing ) to fix it
+ 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
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 () {
+
+ // Date : 9/8/2026
+ // Purpose : Fix the problem "5. When I add a book that I say I've read - it saves the wrong answer"
+ // Change : Correct the logic - if check == true, that means the book was read, so it should show Yes.
+ changeBut.innerText = myLibrary[i].check ? "Yes" : "No";
+ changeBut.addEventListener("click", () => {
myLibrary[i].check = !myLibrary[i].check;
render();
});
+ wasReadCell.appendChild(changeBut);
//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}`);
+ // Date : 9/8/2026
+ // Purpose : Fix the problem "4. Delete button is broken"
+ // Change : Fix the incorrect nanmes "delBut" button and "clicks" event to the correct one "delButton" and "click" respectively
+ delButton.className = "btn btn-warning";
+ delButton.innerText = "Delete";
+ delButton.addEventListener("click", () => {
+ displayStatusMessage(`You've deleted title: ${myLibrary[i].title}`,false);
myLibrary.splice(i, 1);
render();
});
+ deleteCell.appendChild(delButton);
}
}