From 2fc9a83c5039c1e7ee8ac160957af94603bb92cd Mon Sep 17 00:00:00 2001
From: Ihor Taradaiko <igor.taradaiko@gmail.com>
Date: Thu, 16 Apr 2026 19:30:08 +0100
Subject: [PATCH] fixed the issues in script

---
 debugging/book-library/script.js | 87 +++++++++++++++-----------------
 1 file changed, 41 insertions(+), 46 deletions(-)

diff --git a/debugging/book-library/script.js b/debugging/book-library/script.js
index 75ce6c1d..b89f565d 100644
--- a/debugging/book-library/script.js
+++ b/debugging/book-library/script.js
@@ -1,22 +1,22 @@
 let myLibrary = [];
 
-window.addEventListener("load", function (e) {
+window.addEventListener("load", function () {
   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("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();
   }
 }
 
@@ -25,22 +25,24 @@ 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() {
   if (
-    title.value == null ||
-    title.value == "" ||
-    pages.value == null ||
-    pages.value == ""
+    title.value.trim() === "" ||
+    author.value.trim() === "" ||
+    pages.value.trim() === ""
   ) {
     alert("Please fill all fields!");
-    return false;
-  } else {
-    let book = new Book(title.value, title.value, pages.value, check.checked);
-    library.push(book);
-    render();
+    return;
   }
+
+  let book = new Book(title.value, author.value, pages.value, check.checked);
+  myLibrary.push(book);
+  render();
+
+  title.value = "";
+  author.value = "";
+  pages.value = "";
+  check.checked = false;
 }
 
 function Book(title, author, pages, check) {
@@ -51,53 +53,46 @@ 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);
+  let tbody = document.querySelector("#display tbody");
+
+  tbody.innerHTML = "";
+
+  for (let i = 0; i < myLibrary.length; i++) {
+    let row = tbody.insertRow();
+
     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;
+
     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.className = myLibrary[i].check
+      ? "btn btn-success"
+      : "btn btn-secondary";
+    changeBut.innerText = myLibrary[i].check ? "Yes" : "No";
 
     changeBut.addEventListener("click", function () {
       myLibrary[i].check = !myLibrary[i].check;
       render();
     });
 
-    //add delete button to every row and render again
+    wasReadCell.appendChild(changeBut);
+
     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.innerHTML = "Delete";
+
+    delButton.addEventListener("click", function () {
       alert(`You've deleted title: ${myLibrary[i].title}`);
       myLibrary.splice(i, 1);
       render();
     });
+
+    deleteCell.appendChild(delButton);
   }
 }