diff --git a/debugging/book-library/index.html b/debugging/book-library/index.html index 23acfa71e..55afa7af7 100644 --- a/debugging/book-library/index.html +++ b/debugging/book-library/index.html @@ -1,12 +1,9 @@ - - + + - - + Book Library + + @@ -28,46 +25,31 @@

Library

-
- - - - - - -
+
diff --git a/debugging/book-library/script.js b/debugging/book-library/script.js index 75ce6c1d3..2e418756d 100644 --- a/debugging/book-library/script.js +++ b/debugging/book-library/script.js @@ -1,47 +1,54 @@ -let myLibrary = []; - +const myLibrary = []; +//event listener window.addEventListener("load", function (e) { 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 checkInput = 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() { +const submitBtn = document.getElementById("submit-btn"); +function processbook(event) { + // Prevent the form from refreshing the page + event.preventDefault(); + + const trimmedTitle = title.value.trim(); + const trimmedAuthor = author.value.trim(); + const pagesNum = Number(pages.value); + if ( - title.value == null || - title.value == "" || - pages.value == null || - pages.value == "" + !trimmedTitle || + !trimmedAuthor || + !Number.isInteger(pagesNum) || + pagesNum <= 0 ) { - alert("Please fill all fields!"); + alert("Please enter a valid title, author, and a whole number of pages."); return false; - } else { - let book = new Book(title.value, title.value, pages.value, check.checked); - library.push(book); - render(); } + + let book = new Book(trimmedTitle, trimmedAuthor, pagesNum, check.checked); + myLibrary.push(book); + render(); } +submitBtn.addEventListener("click", processbook); function Book(title, author, pages, check) { this.title = title; @@ -51,37 +58,28 @@ 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 tbody = document.querySelector("#display tbody"); + tbody.innerHTML = ""; + //insert updated row and cells let length = myLibrary.length; for (let i = 0; i < length; i++) { - let row = table.insertRow(1); + let row = tbody.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; + 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.textContent = myLibrary[i].check ? "Yes" : "No"; changeBut.addEventListener("click", function () { myLibrary[i].check = !myLibrary[i].check; @@ -89,15 +87,19 @@ 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: ${myLibrary[i].title}`); - myLibrary.splice(i, 1); - render(); + delBut.textContent = "Delete"; + delBut.addEventListener("click", function () { + const bookTitle = myLibrary[i].title; + + // 2. Ask for confirmation with 'OK' and 'Cancel' options + if (confirm(`Are you sure you want to delete "${bookTitle}"?`)) { + myLibrary.splice(i, 1); + render(); + } }); } }