diff --git a/debugging/book-library/index.html b/debugging/book-library/index.html
index 23acfa71..a2060ad2 100644
--- a/debugging/book-library/index.html
+++ b/debugging/book-library/index.html
@@ -1,4 +1,4 @@
-
+
@@ -31,7 +31,7 @@ Library
Library
/>
Library
/>Read
diff --git a/debugging/book-library/script.js b/debugging/book-library/script.js
index 75ce6c1d..db663ee1 100644
--- a/debugging/book-library/script.js
+++ b/debugging/book-library/script.js
@@ -6,17 +6,16 @@ window.addEventListener("load", function (e) {
});
function populateStorage() {
- if (myLibrary.length == 0) {
- let book1 = new Book("Robison Crusoe", "Daniel Defoe", "252", true);
- let book2 = new Book(
+ // Seed with a couple of books if library is empty
+ 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",
true
);
- myLibrary.push(book1);
- myLibrary.push(book2);
- render();
+ myLibrary.push(book1, book2);
}
}
@@ -27,77 +26,82 @@ 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 == ""
- ) {
+function addBook() {
+ // basic validation
+ if (!title.value || !author.value || !pages.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();
}
+
+ const book = new Book(
+ title.value.trim(),
+ author.value.trim(),
+ pages.value.trim(),
+ check.checked
+ );
+ myLibrary.push(book);
+ // clear form inputs
+ title.value = "";
+ author.value = "";
+ pages.value = "";
+ check.checked = false;
+ render();
+ return true;
}
-function Book(title, author, pages, check) {
+function Book(title, author, pages, read) {
this.title = title;
this.author = author;
this.pages = pages;
- this.check = check;
+ // store as boolean under a descriptive property
+ 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);
- }
- //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;
+ const table = document.getElementById("display");
+ const tbody = table.getElementsByTagName("tbody")[0];
+ // clear existing rows in tbody
+ while (tbody.firstChild) tbody.removeChild(tbody.firstChild);
- //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;
+ myLibrary.forEach((book, i) => {
+ 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);
- changeBut.addEventListener("click", function () {
- myLibrary[i].check = !myLibrary[i].check;
+ const wasReadCell = document.createElement("td");
+ const changeBut = document.createElement("button");
+ changeBut.className = "btn btn-sm btn-outline-primary";
+ changeBut.textContent = book.read ? "Yes" : "No";
+ changeBut.addEventListener("click", () => {
+ book.read = !book.read;
render();
});
+ wasReadCell.appendChild(changeBut);
+ row.appendChild(wasReadCell);
- //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: ${myLibrary[i].title}`);
- myLibrary.splice(i, 1);
- render();
+ const deleteCell = document.createElement("td");
+ const delBut = document.createElement("button");
+ delBut.className = "btn btn-sm btn-danger";
+ delBut.textContent = "Delete";
+ delBut.addEventListener("click", () => {
+ if (confirm(`Delete "${book.title}"?`)) {
+ myLibrary.splice(i, 1);
+ render();
+ }
});
- }
+ deleteCell.appendChild(delBut);
+ row.appendChild(deleteCell);
+
+ tbody.appendChild(row);
+ });
}