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Library
-
Add books to your virtual library
-
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Library
+
Add books to your virtual library
+
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+
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+
+ | Title |
+ Author |
+ Number of Pages |
+ Read |
+ |
+
+
+
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+ |
+ |
+ |
+ |
+ |
+
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+
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- | Title |
- Author |
- Number of Pages |
- Read |
- |
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\ No newline at end of file
diff --git a/debugging/book-library/script.js b/debugging/book-library/script.js
index 75ce6c1d..365ce4dd 100644
--- a/debugging/book-library/script.js
+++ b/debugging/book-library/script.js
@@ -1,4 +1,4 @@
-let myLibrary = [];
+const myLibrary = [];
window.addEventListener("load", function (e) {
populateStorage();
@@ -7,8 +7,8 @@ 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(
+ const book1 = new Book("Robison Crusoe", "Daniel Defoe", "252", true);
+ const book2 = new Book(
"The Old Man and the Sea",
"Ernest Hemingway",
"127",
@@ -20,25 +20,36 @@ function populateStorage() {
}
}
-const title = document.getElementById("title");
-const author = document.getElementById("author");
-const pages = document.getElementById("pages");
-const check = document.getElementById("check");
+function Book(title, author, pages, check) {
+ this.title = title;
+ this.author = author;
+ this.pages = pages;
+ this.check = 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!");
+ const trimmedTitle = titleInput.value.trim();
+ const trimmedAuthor = authorInput.value.trim();
+ const trimmedPageNumbers = +pagesInput.value.trim();
+
+ if (!trimmedTitle || !trimmedAuthor || !Number.isInteger(trimmedPageNumbers) || trimmedPageNumbers <= 0) {
+ alert("Please fill all fields! Page count must be a positive integer.");
return false;
} else {
- let book = new Book(title.value, title.value, pages.value, check.checked);
- library.push(book);
+ let book = new Book(
+ trimmedTitle,
+ trimmedAuthor,
+ trimmedPageNumbers,
+ readCheckbox.checked
+ );
+ myLibrary.push(book);
+
+ titleInput.value = "";
+ authorInput.value = "";
+ pagesInput.value = "";
+ readCheckbox.checked = false;
render();
}
}
@@ -51,37 +62,28 @@ 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);
- }
+ const table = document.getElementById("display");
+ const tbody = table.querySelector("tbody");
+ //clear tbody
+ tbody.innerHTML = "";
//insert updated row and cells
- let length = myLibrary.length;
+ const 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 row = table.insertRow(1);
+ const titleCell = row.insertCell(0);
+ const authorCell = row.insertCell(1);
+ const pagesCell = row.insertCell(2);
+ const wasReadCell = row.insertCell(3);
+ const deleteCell = row.insertCell(4);
+ titleCell.textContent = myLibrary[i].title;
+ authorCell.textContent = myLibrary[i].author;
+ pagesCell.textContent = myLibrary[i].pages;
//add and wait for action for read/unread button
- let changeBut = document.createElement("button");
- changeBut.id = i;
+ const changeBut = document.createElement("button");
changeBut.className = "btn btn-success";
wasReadCell.appendChild(changeBut);
- let readStatus = "";
- if (myLibrary[i].check == false) {
- readStatus = "Yes";
- } else {
- readStatus = "No";
- }
- changeBut.innerText = readStatus;
+ changeBut.innerHTML = myLibrary[i].check ? "Yes" : "No";
changeBut.addEventListener("click", function () {
myLibrary[i].check = !myLibrary[i].check;
@@ -89,15 +91,15 @@ function render() {
});
//add delete button to every row and render again
- let delButton = document.createElement("button");
- delBut.id = i + 5;
+ const delBut = document.createElement("button");
deleteCell.appendChild(delBut);
delBut.className = "btn btn-warning";
delBut.innerHTML = "Delete";
- delBut.addEventListener("clicks", function () {
- alert(`You've deleted title: ${myLibrary[i].title}`);
+ delBut.addEventListener("click", function () {
+ const deletedBook = myLibrary[i];
myLibrary.splice(i, 1);
render();
+ alert(`You've deleted title: ${deletedBook.title}`);
});
}
}