\documentclass[10pt,a4paper]{article}

% Packages
\usepackage{fancyhdr}           % For header and footer
\usepackage{multicol}           % Allows multicols in tables
\usepackage{tabularx}           % Intelligent column widths
\usepackage{tabulary}           % Used in header and footer
\usepackage{hhline}             % Border under tables
\usepackage{graphicx}           % For images
\usepackage{xcolor}             % For hex colours
%\usepackage[utf8x]{inputenc}    % For unicode character support
\usepackage[T1]{fontenc}        % Without this we get weird character replacements
\usepackage{colortbl}           % For coloured tables
\usepackage{setspace}           % For line height
\usepackage{lastpage}           % Needed for total page number
\usepackage{seqsplit}           % Splits long words.
%\usepackage{opensans}          % Can't make this work so far. Shame. Would be lovely.
\usepackage[normalem]{ulem}     % For underlining links
% Most of the following are not required for the majority
% of cheat sheets but are needed for some symbol support.
\usepackage{amsmath}            % Symbols
\usepackage{MnSymbol}           % Symbols
\usepackage{wasysym}            % Symbols
%\usepackage[english,german,french,spanish,italian]{babel}              % Languages

% Document Info
\author{sally sung}
\pdfinfo{
  /Title (full-stack-dev-with-js-final.pdf)
  /Creator (Cheatography)
  /Author (sally sung)
  /Subject (Full Stack Dev With JS - Final Cheat Sheet)
}

% Lengths and widths
\addtolength{\textwidth}{6cm}
\addtolength{\textheight}{-1cm}
\addtolength{\hoffset}{-3cm}
\addtolength{\voffset}{-2cm}
\setlength{\tabcolsep}{0.2cm} % Space between columns
\setlength{\headsep}{-12pt} % Reduce space between header and content
\setlength{\headheight}{85pt} % If less, LaTeX automatically increases it
\renewcommand{\footrulewidth}{0pt} % Remove footer line
\renewcommand{\headrulewidth}{0pt} % Remove header line
\renewcommand{\seqinsert}{\ifmmode\allowbreak\else\-\fi} % Hyphens in seqsplit
% This two commands together give roughly
% the right line height in the tables
\renewcommand{\arraystretch}{1.3}
\onehalfspacing

% Commands
\newcommand{\SetRowColor}[1]{\noalign{\gdef\RowColorName{#1}}\rowcolor{\RowColorName}} % Shortcut for row colour
\newcommand{\mymulticolumn}[3]{\multicolumn{#1}{>{\columncolor{\RowColorName}}#2}{#3}} % For coloured multi-cols
\newcolumntype{x}[1]{>{\raggedright}p{#1}} % New column types for ragged-right paragraph columns
\newcommand{\tn}{\tabularnewline} % Required as custom column type in use

% Font and Colours
\definecolor{HeadBackground}{HTML}{333333}
\definecolor{FootBackground}{HTML}{666666}
\definecolor{TextColor}{HTML}{333333}
\definecolor{DarkBackground}{HTML}{4269D4}
\definecolor{LightBackground}{HTML}{F3F5FC}
\renewcommand{\familydefault}{\sfdefault}
\color{TextColor}

% Header and Footer
\pagestyle{fancy}
\fancyhead{} % Set header to blank
\fancyfoot{} % Set footer to blank
\fancyhead[L]{
\noindent
\begin{multicols}{3}
\begin{tabulary}{5.8cm}{C}
    \SetRowColor{DarkBackground}
    \vspace{-7pt}
    {\parbox{\dimexpr\textwidth-2\fboxsep\relax}{\noindent
        \hspace*{-6pt}\includegraphics[width=5.8cm]{/web/www.cheatography.com/public/images/cheatography_logo.pdf}}
    }
\end{tabulary}
\columnbreak
\begin{tabulary}{11cm}{L}
    \vspace{-2pt}\large{\bf{\textcolor{DarkBackground}{\textrm{Full Stack Dev With JS - Final Cheat Sheet}}}} \\
    \normalsize{by \textcolor{DarkBackground}{sally sung} via \textcolor{DarkBackground}{\uline{cheatography.com/216190/cs/47975/}}}
\end{tabulary}
\end{multicols}}

\fancyfoot[L]{ \footnotesize
\noindent
\begin{multicols}{3}
\begin{tabulary}{5.8cm}{LL}
  \SetRowColor{FootBackground}
  \mymulticolumn{2}{p{5.377cm}}{\bf\textcolor{white}{Cheatographer}}  \\
  \vspace{-2pt}sally sung \\
  \uline{cheatography.com/sally-sung} \\
  \end{tabulary}
\vfill
\columnbreak
\begin{tabulary}{5.8cm}{L}
  \SetRowColor{FootBackground}
  \mymulticolumn{1}{p{5.377cm}}{\bf\textcolor{white}{Cheat Sheet}}  \\
   \vspace{-2pt}Not Yet Published.\\
   Updated 21st April, 2026.\\
   Page {\thepage} of \pageref{LastPage}.
\end{tabulary}
\vfill
\columnbreak
\begin{tabulary}{5.8cm}{L}
  \SetRowColor{FootBackground}
  \mymulticolumn{1}{p{5.377cm}}{\bf\textcolor{white}{Sponsor}}  \\
  \SetRowColor{white}
  \vspace{-5pt}
  %\includegraphics[width=48px,height=48px]{dave.jpeg}
  Measure your website readability!\\
  www.readability-score.com
\end{tabulary}
\end{multicols}}




\begin{document}
\raggedright
\raggedcolumns

% Set font size to small. Switch to any value
% from this page to resize cheat sheet text:
% www.emerson.emory.edu/services/latex/latex_169.html
\footnotesize % Small font.

\begin{multicols*}{2}

\begin{tabularx}{8.4cm}{x{3.04 cm} x{4.96 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{8.4cm}}{\bf\textcolor{white}{Setup}}  \tn
% Row 0
\SetRowColor{LightBackground}
React Client Setup & npm create vite@latest client -{}- -{}-template react \tn 
% Row Count 3 (+ 3)
% Row 1
\SetRowColor{white}
 & cd client \tn 
% Row Count 4 (+ 1)
% Row 2
\SetRowColor{LightBackground}
 & npm install axios bootstrap react-icons react-router-dom \tn 
% Row Count 7 (+ 3)
% Row 3
\SetRowColor{white}
 & src \textgreater{} copy styles.css \tn 
% Row Count 8 (+ 1)
% Row 4
\SetRowColor{LightBackground}
 & src / app.jsx \textgreater{} import './styles.css' \tn 
% Row Count 10 (+ 2)
% Row 5
\SetRowColor{white}
Node/Express Server setup & root \textgreater{} create a new folder named server \tn 
% Row Count 12 (+ 2)
% Row 6
\SetRowColor{LightBackground}
 & cd server \tn 
% Row Count 13 (+ 1)
% Row 7
\SetRowColor{white}
 & npm init -y \tn 
% Row Count 14 (+ 1)
% Row 8
\SetRowColor{LightBackground}
 & create server.js file \tn 
% Row Count 15 (+ 1)
% Row 9
\SetRowColor{white}
Concurrently & root \textgreater{} npm i concurrently \tn 
% Row Count 17 (+ 2)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\SetRowColor{LightBackground}
\mymulticolumn{2}{x{8.4cm}}{server \textgreater{} package.json \newline "scripts": \{ \newline      "test": "echo \textbackslash{}"Error: no test specified\textbackslash{}" \&\& exit 1", \newline      "start": "node server.js" \newline  \}, \newline "type": "module" \newline  \newline root \textgreater{} package.json \newline "scripts": \{ \newline      "start": "concurrently \textbackslash{}"npm run server\textbackslash{}" \textbackslash{}"npm run client\textbackslash{}"", \newline      "server": "cd server \&\& npm start", \newline      "client": "cd client \&\& npm run dev" \newline \}}  \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{8.4cm}}{\bf\textcolor{white}{Client \textgreater{} src / config / api.js}}  \tn
\SetRowColor{white}
\mymulticolumn{1}{x{8.4cm}}{export const API\_BASE\_URL = \seqsplit{(import.meta.env.VITE\_API\_BASE\_URL} || "http://localhost:3000").replace(/\textbackslash{}/\$/, ""); \newline % Row Count 3 (+ 3)
export const API\_URLS = \{ \newline % Row Count 4 (+ 1)
    books: `\$\{API\_BASE\_URL\}/books`, \newline % Row Count 5 (+ 1)
    book: (bookId) =\textgreater{} `\$\{API\_BASE\_URL\}/books/\$\{bookId\}`, \newline % Row Count 7 (+ 2)
\}; \newline % Row Count 8 (+ 1)
export const BOOKS\_API\_URL = API\_URLS.books; \newline % Row Count 9 (+ 1)
export const getBookUrl = API\_URLS.book;% Row Count 10 (+ 1)
} \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{8.4cm}}{\bf\textcolor{white}{Client \textgreater{} main.jsx}}  \tn
\SetRowColor{white}
\mymulticolumn{1}{x{8.4cm}}{import \{ StrictMode \} from 'react' \newline % Row Count 1 (+ 1)
import \{ createRoot \} from 'react-dom/client' \newline % Row Count 2 (+ 1)
import './index.css' \newline % Row Count 3 (+ 1)
import App from './App.jsx' \newline % Row Count 4 (+ 1)
import \{BrowserRouter as Router\} from "react-router-dom" \newline % Row Count 6 (+ 2)
import \seqsplit{"bootstrap/dist/css/bootstrap}.css" \newline % Row Count 7 (+ 1)
\seqsplit{createRoot(document.getElementById('root')).render(} \newline % Row Count 9 (+ 2)
  \textless{}StrictMode\textgreater{} \newline % Row Count 10 (+ 1)
    \textless{}Router\textgreater{} \newline % Row Count 11 (+ 1)
      \textless{}App /\textgreater{} \newline % Row Count 12 (+ 1)
    \textless{}/Router\textgreater{} \newline % Row Count 13 (+ 1)
  \textless{}/StrictMode\textgreater{}, \newline % Row Count 14 (+ 1)
)% Row Count 15 (+ 1)
} \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{8.4cm}}{\bf\textcolor{white}{Client \textgreater{} App.jsx}}  \tn
\SetRowColor{white}
\mymulticolumn{1}{x{8.4cm}}{import \{ BOOKS\_API\_URL, getBookUrl \} from "./config/api"; \newline % Row Count 2 (+ 2)
import './styles.css'; \newline % Row Count 3 (+ 1)
const logError = (action, error) =\textgreater{} \{ \newline % Row Count 4 (+ 1)
    console.log(`ERROR in \$\{action\}: \$\{error.message\}`); \newline % Row Count 6 (+ 2)
\}; \newline % Row Count 7 (+ 1)
function App() \{ \newline % Row Count 8 (+ 1)
    const {[}books, setBooks{]} = useState({[}{]}); \newline % Row Count 9 (+ 1)
    useEffect(() =\textgreater{} \{ \newline % Row Count 10 (+ 1)
        const fetchBooks = async () =\textgreater{} \{ \newline % Row Count 11 (+ 1)
            try \{ \newline % Row Count 12 (+ 1)
                const \{ data \} = await \seqsplit{axios.get(BOOKS\_API\_URL);} \newline % Row Count 14 (+ 2)
                setBooks(data); \newline % Row Count 15 (+ 1)
            \} catch (err) \{ \newline % Row Count 16 (+ 1)
                logError("fetching books", err); \newline % Row Count 17 (+ 1)
            \} \newline % Row Count 18 (+ 1)
        \}; \newline % Row Count 19 (+ 1)
        fetchBooks(); \newline % Row Count 20 (+ 1)
    \}, {[}{]}); \newline % Row Count 21 (+ 1)
    const handleDelete = async (idToDelete) =\textgreater{} \{ \newline % Row Count 22 (+ 1)
        try \{ \newline % Row Count 23 (+ 1)
            await \seqsplit{axios.delete(getBookUrl(idToDelete));} \newline % Row Count 25 (+ 2)
            setBooks((currentBooks) =\textgreater{} \seqsplit{currentBooks.filter((book)} =\textgreater{} book.\_id !== idToDelete)); \newline % Row Count 27 (+ 2)
        \} catch (err) \{ \newline % Row Count 28 (+ 1)
            logError("deleting the book", err); \newline % Row Count 29 (+ 1)
        \} \newline % Row Count 30 (+ 1)
} \tn 
\end{tabularx}
\par\addvspace{1.3em}

\vfill
\columnbreak
\begin{tabularx}{8.4cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{8.4cm}}{\bf\textcolor{white}{Client \textgreater{} App.jsx (cont)}}  \tn
\SetRowColor{white}
\mymulticolumn{1}{x{8.4cm}}{    \}; \newline % Row Count 1 (+ 1)
    const handleAdd = async (newBook) =\textgreater{} \{ \newline % Row Count 2 (+ 1)
        try \{ \newline % Row Count 3 (+ 1)
            const \{ data \} = await \seqsplit{axios.post(BOOKS\_API\_URL}, newBook); \newline % Row Count 5 (+ 2)
            setBooks((currentBooks) =\textgreater{} {[}...currentBooks, data{]}); \newline % Row Count 7 (+ 2)
        \} catch (err) \{ \newline % Row Count 8 (+ 1)
            logError("adding the book", err); \newline % Row Count 9 (+ 1)
        \} \newline % Row Count 10 (+ 1)
    \}; \newline % Row Count 11 (+ 1)
    const handleUpdate = async (updatedBook) =\textgreater{} \{ \newline % Row Count 12 (+ 1)
        try \{ \newline % Row Count 13 (+ 1)
            const \{ data \} = await \seqsplit{axios.put(getBookUrl(updatedBook.\_id)}, updatedBook); \newline % Row Count 15 (+ 2)
            setBooks((currentBooks) =\textgreater{} currentBooks.map((book) =\textgreater{} (book.\_id === data.\_id ? data : book))); \newline % Row Count 18 (+ 3)
        \} catch (err) \{ \newline % Row Count 19 (+ 1)
            logError("updating the book", err); \newline % Row Count 20 (+ 1)
        \} \newline % Row Count 21 (+ 1)
    \}; \newline % Row Count 22 (+ 1)
    const handleToggleLike = (bookToToggle) =\textgreater{} \{ \newline % Row Count 23 (+ 1)
        handleUpdate(\{ ...bookToToggle, like: !bookToToggle.like \}); \newline % Row Count 25 (+ 2)
    \}; \newline % Row Count 26 (+ 1)
    return ( \newline % Row Count 27 (+ 1)
        \textless{}div className="App"\textgreater{} \newline % Row Count 28 (+ 1)
            \textless{}NavBar /\textgreater{} \newline % Row Count 29 (+ 1)
            \textless{}Header /\textgreater{} \newline % Row Count 30 (+ 1)
} \tn 
\end{tabularx}
\par\addvspace{1.3em}

\vfill
\columnbreak
\begin{tabularx}{8.4cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{8.4cm}}{\bf\textcolor{white}{Client \textgreater{} App.jsx (cont)}}  \tn
\SetRowColor{white}
\mymulticolumn{1}{x{8.4cm}}{            \textless{}Routes\textgreater{} \newline % Row Count 1 (+ 1)
                \textless{}Route \newline % Row Count 2 (+ 1)
                    path="/" \newline % Row Count 3 (+ 1)
                    element=\{\textless{}Books books=\{books\} onDelete=\{handleDelete\} onToggleLike=\{handleToggleLike\} /\textgreater{}\} \newline % Row Count 6 (+ 3)
                /\textgreater{} \newline % Row Count 7 (+ 1)
                \textless{}Route path="/addbook" element=\{\textless{}AddBook onAdd=\{handleAdd\} /\textgreater{}\} /\textgreater{} \newline % Row Count 9 (+ 2)
                \textless{}Route path="/updatebook/:id" element=\{\textless{}UpdateBook onUpdate=\{handleUpdate\} /\textgreater{}\} /\textgreater{} \newline % Row Count 11 (+ 2)
            \textless{}/Routes\textgreater{} \newline % Row Count 12 (+ 1)
            \textless{}Footer /\textgreater{} \newline % Row Count 13 (+ 1)
        \textless{}/div\textgreater{} \newline % Row Count 14 (+ 1)
    ); \newline % Row Count 15 (+ 1)
\} \newline % Row Count 16 (+ 1)
export default App;% Row Count 17 (+ 1)
} \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{8.4cm}}{\bf\textcolor{white}{Client \textgreater{} components / books.jsx}}  \tn
\SetRowColor{white}
\mymulticolumn{1}{x{8.4cm}}{import Book from "./book"; \newline % Row Count 1 (+ 1)
const Books = (\{ books = {[}{]}, onDelete = (f) =\textgreater{} f, onToggleLike = (f) =\textgreater{} f \}) =\textgreater{} \{ \newline % Row Count 3 (+ 2)
    return ( \newline % Row Count 4 (+ 1)
        \textless{}section\textgreater{} \newline % Row Count 5 (+ 1)
            \{!books.length ? ( \newline % Row Count 6 (+ 1)
                \textless{}h2\textgreater{}There are no books available.\textless{}/h2\textgreater{} \newline % Row Count 8 (+ 2)
            ) : ( \newline % Row Count 9 (+ 1)
                \textless{}\textgreater{} \newline % Row Count 10 (+ 1)
                    \textless{}h3\textgreater{}Showing \{books.length\} books.\textless{}/h3\textgreater{} \newline % Row Count 12 (+ 2)
                    \textless{}table className="table"\textgreater{} \newline % Row Count 13 (+ 1)
                        \textless{}thead\textgreater{} \newline % Row Count 14 (+ 1)
                            \textless{}tr\textgreater{} \newline % Row Count 15 (+ 1)
                                \textless{}th\textgreater{}Title\textless{}/th\textgreater{} \newline % Row Count 16 (+ 1)
                                \textless{}th\textgreater{}Author\textless{}/th\textgreater{} \newline % Row Count 17 (+ 1)
                                \textless{}th\textgreater{}Number in Stock\textless{}/th\textgreater{} \newline % Row Count 19 (+ 2)
                                \textless{}th\textgreater{}Price\textless{}/th\textgreater{} \newline % Row Count 20 (+ 1)
                                \textless{}th\textgreater{}Rating\textless{}/th\textgreater{} \newline % Row Count 21 (+ 1)
                                \textless{}th\textgreater{}Publish Year\textless{}/th\textgreater{} \newline % Row Count 23 (+ 2)
                                \textless{}th\textgreater{}Like\textless{}/th\textgreater{} \newline % Row Count 24 (+ 1)
                                \textless{}th\textgreater{}Actions(s)\textless{}/th\textgreater{} \newline % Row Count 26 (+ 2)
                            \textless{}/tr\textgreater{} \newline % Row Count 27 (+ 1)
                        \textless{}/thead\textgreater{} \newline % Row Count 28 (+ 1)
                        \textless{}tbody\textgreater{} \newline % Row Count 29 (+ 1)
                            \{books.map((book) =\textgreater{} ( \newline % Row Count 31 (+ 2)
} \tn 
\end{tabularx}
\par\addvspace{1.3em}

\vfill
\columnbreak
\begin{tabularx}{8.4cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{8.4cm}}{\bf\textcolor{white}{Client \textgreater{} components / books.jsx (cont)}}  \tn
\SetRowColor{white}
\mymulticolumn{1}{x{8.4cm}}{                                \textless{}Book key=\{book.\_id\} book=\{book\} onDelete=\{onDelete\} onToggleLike=\{onToggleLike\} /\textgreater{} \newline % Row Count 3 (+ 3)
                            ))\} \newline % Row Count 4 (+ 1)
                        \textless{}/tbody\textgreater{} \newline % Row Count 5 (+ 1)
                    \textless{}/table\textgreater{} \newline % Row Count 6 (+ 1)
                \textless{}/\textgreater{} \newline % Row Count 7 (+ 1)
            )\} \newline % Row Count 8 (+ 1)
        \textless{}/section\textgreater{} \newline % Row Count 9 (+ 1)
    ); \newline % Row Count 10 (+ 1)
\}; \newline % Row Count 11 (+ 1)
export default Books;% Row Count 12 (+ 1)
} \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{8.4cm}}{\bf\textcolor{white}{Client \textgreater{} components / book.jsx}}  \tn
\SetRowColor{white}
\mymulticolumn{1}{x{8.4cm}}{import \{ FaHeart, FaRegHeart, FaTrash, FaEdit \} from "react-icons/fa"; \newline % Row Count 2 (+ 2)
import \{ Link \} from "react-router-dom"; \newline % Row Count 3 (+ 1)
const Book = (\{ book, onDelete = (f) =\textgreater{} f, onToggleLike = (f) =\textgreater{} f \}) =\textgreater{} \{ \newline % Row Count 5 (+ 2)
    const formatYear = () =\textgreater{} \{ \newline % Row Count 6 (+ 1)
        return new \seqsplit{Date(book.publishYear).toISOString().slice(0}, 10); \newline % Row Count 8 (+ 2)
    \}; \newline % Row Count 9 (+ 1)
    return ( \newline % Row Count 10 (+ 1)
        \textless{}tr\textgreater{} \newline % Row Count 11 (+ 1)
            \textless{}td\textgreater{}\{book.title\}\textless{}/td\textgreater{} \newline % Row Count 12 (+ 1)
            \textless{}td\textgreater{}\{book.author\}\textless{}/td\textgreater{} \newline % Row Count 13 (+ 1)
            \textless{}td\textgreater{}\{book.numberInStock\}\textless{}/td\textgreater{} \newline % Row Count 14 (+ 1)
            \textless{}td\textgreater{}\{book.price\}\textless{}/td\textgreater{} \newline % Row Count 15 (+ 1)
            \textless{}td\textgreater{}\{book.rating\}\textless{}/td\textgreater{} \newline % Row Count 16 (+ 1)
            \textless{}td\textgreater{}\{formatYear()\}\textless{}/td\textgreater{} \newline % Row Count 17 (+ 1)
            \textless{}td\textgreater{} \newline % Row Count 18 (+ 1)
                \textless{}button \newline % Row Count 19 (+ 1)
                    type="button" \newline % Row Count 20 (+ 1)
                    className="btn btn-link p-0 border-0" \newline % Row Count 22 (+ 2)
                    onClick=\{() =\textgreater{} onToggleLike(book)\} \newline % Row Count 24 (+ 2)
                    aria-label=\{book.like ? "Unlike book" : "Like book"\} \newline % Row Count 26 (+ 2)
                \textgreater{} \newline % Row Count 27 (+ 1)
                    \{book.like ? \textless{}FaHeart color="red" /\textgreater{} : \textless{}FaRegHeart /\textgreater{}\} \newline % Row Count 29 (+ 2)
                \textless{}/button\textgreater{} \newline % Row Count 30 (+ 1)
} \tn 
\end{tabularx}
\par\addvspace{1.3em}

\vfill
\columnbreak
\begin{tabularx}{8.4cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{8.4cm}}{\bf\textcolor{white}{Client \textgreater{} components / book.jsx (cont)}}  \tn
\SetRowColor{white}
\mymulticolumn{1}{x{8.4cm}}{            \textless{}/td\textgreater{} \newline % Row Count 1 (+ 1)
            \textless{}td\textgreater{} \newline % Row Count 2 (+ 1)
                \textless{}Link to=\{`/updatebook/\$\{book.\_id\}`\}\textgreater{} \newline % Row Count 4 (+ 2)
                    \textless{}FaEdit /\textgreater{} \newline % Row Count 5 (+ 1)
                \textless{}/Link\textgreater{} \newline % Row Count 6 (+ 1)
            \textless{}/td\textgreater{} \newline % Row Count 7 (+ 1)
            \textless{}td\textgreater{} \newline % Row Count 8 (+ 1)
                \textless{}FaTrash onClick=\{() =\textgreater{} onDelete(book.\_id)\} /\textgreater{} \newline % Row Count 10 (+ 2)
            \textless{}/td\textgreater{} \newline % Row Count 11 (+ 1)
        \textless{}/tr\textgreater{} \newline % Row Count 12 (+ 1)
    ); \newline % Row Count 13 (+ 1)
\}; \newline % Row Count 14 (+ 1)
export default Book;% Row Count 15 (+ 1)
} \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{8.4cm}}{\bf\textcolor{white}{Client \textgreater{} components / addBook.jsx}}  \tn
\SetRowColor{white}
\mymulticolumn{1}{x{8.4cm}}{import \{ useState \} from "react"; \newline % Row Count 1 (+ 1)
import \{ useNavigate \} from "react-router-dom"; \newline % Row Count 2 (+ 1)
const AddBook = (\{ onAdd = (f) =\textgreater{} f \}) =\textgreater{} \{ \newline % Row Count 3 (+ 1)
    const {[}book, setBook{]} = useState(\{ \newline % Row Count 4 (+ 1)
        title: "", \newline % Row Count 5 (+ 1)
        author: "", \newline % Row Count 6 (+ 1)
        numberInStock: "", \newline % Row Count 7 (+ 1)
        price: "", \newline % Row Count 8 (+ 1)
        rating: "", \newline % Row Count 9 (+ 1)
        publishYear: "", \newline % Row Count 10 (+ 1)
        like: "", \newline % Row Count 11 (+ 1)
    \}); \newline % Row Count 12 (+ 1)
    const navigate = useNavigate(); \newline % Row Count 13 (+ 1)
    const submitForm = (e) =\textgreater{} \{ \newline % Row Count 14 (+ 1)
        e.preventDefault(); \newline % Row Count 15 (+ 1)
        onAdd(book); \newline % Row Count 16 (+ 1)
        setBook(\{ \newline % Row Count 17 (+ 1)
            title: "", \newline % Row Count 18 (+ 1)
            author: "", \newline % Row Count 19 (+ 1)
            numberInStock: "", \newline % Row Count 20 (+ 1)
            price: "", \newline % Row Count 21 (+ 1)
            rating: "", \newline % Row Count 22 (+ 1)
            publishYear: "", \newline % Row Count 23 (+ 1)
            like: "", \newline % Row Count 24 (+ 1)
        \}); \newline % Row Count 25 (+ 1)
        navigate("/"); \newline % Row Count 26 (+ 1)
    \}; \newline % Row Count 27 (+ 1)
    return ( \newline % Row Count 28 (+ 1)
        \textless{}div\textgreater{} \newline % Row Count 29 (+ 1)
            \textless{}h1\textgreater{}Please enter the details of the new Book here..\textless{}/h1\textgreater{} \newline % Row Count 31 (+ 2)
} \tn 
\end{tabularx}
\par\addvspace{1.3em}

\vfill
\columnbreak
\begin{tabularx}{8.4cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{8.4cm}}{\bf\textcolor{white}{Client \textgreater{} components / addBook.jsx (cont)}}  \tn
\SetRowColor{white}
\mymulticolumn{1}{x{8.4cm}}{            \textless{}form onSubmit=\{submitForm\} method="post"\textgreater{} \newline % Row Count 2 (+ 2)
                \textless{}div className="form-group"\textgreater{} \newline % Row Count 3 (+ 1)
                    \textless{}label htmlFor="title" className="p-3"\textgreater{} \newline % Row Count 5 (+ 2)
                        Book Title \newline % Row Count 6 (+ 1)
                    \textless{}/label\textgreater{} \newline % Row Count 7 (+ 1)
                    \textless{}input \newline % Row Count 8 (+ 1)
                        type="text" \newline % Row Count 9 (+ 1)
                        name="title" \newline % Row Count 10 (+ 1)
                        id="title" \newline % Row Count 11 (+ 1)
                        className="form-control" \newline % Row Count 12 (+ 1)
                        placeholder="Enter a Title" \newline % Row Count 14 (+ 2)
                        onChange=\{(event) =\textgreater{} setBook(\{ ...book, title: event.target.value \})\} \newline % Row Count 16 (+ 2)
                        value=\{book.title\} \newline % Row Count 17 (+ 1)
                        required \newline % Row Count 18 (+ 1)
                    /\textgreater{} \newline % Row Count 19 (+ 1)
                \textless{}/div\textgreater{} \newline % Row Count 20 (+ 1)
                \textless{}div className="form-group"\textgreater{} \newline % Row Count 21 (+ 1)
                    \textless{}label htmlFor="author" className="p-3"\textgreater{} \newline % Row Count 23 (+ 2)
                        Book Author \newline % Row Count 24 (+ 1)
                    \textless{}/label\textgreater{} \newline % Row Count 25 (+ 1)
                    \textless{}input \newline % Row Count 26 (+ 1)
                        type="text" \newline % Row Count 27 (+ 1)
                        name="author" \newline % Row Count 28 (+ 1)
                        id="author" \newline % Row Count 29 (+ 1)
                        className="form-control" \newline % Row Count 30 (+ 1)
} \tn 
\end{tabularx}
\par\addvspace{1.3em}

\vfill
\columnbreak
\begin{tabularx}{8.4cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{8.4cm}}{\bf\textcolor{white}{Client \textgreater{} components / addBook.jsx (cont)}}  \tn
\SetRowColor{white}
\mymulticolumn{1}{x{8.4cm}}{                        placeholder="Enter an Author" \newline % Row Count 2 (+ 2)
                        onChange=\{(event) =\textgreater{} setBook(\{ ...book, author: event.target.value \})\} \newline % Row Count 4 (+ 2)
                        value=\{book.author\} \newline % Row Count 5 (+ 1)
                        required \newline % Row Count 6 (+ 1)
                    /\textgreater{} \newline % Row Count 7 (+ 1)
                \textless{}/div\textgreater{} \newline % Row Count 8 (+ 1)
                \textless{}div className="form-group"\textgreater{} \newline % Row Count 9 (+ 1)
                    \textless{}label htmlFor="numberInStock" className="p-3"\textgreater{} \newline % Row Count 11 (+ 2)
                        Number In Stock \newline % Row Count 12 (+ 1)
                    \textless{}/label\textgreater{} \newline % Row Count 13 (+ 1)
                    \textless{}input \newline % Row Count 14 (+ 1)
                        type="number" \newline % Row Count 15 (+ 1)
                        name="numberInStock" \newline % Row Count 16 (+ 1)
                        id="numberInStock" \newline % Row Count 17 (+ 1)
                        className="form-control" \newline % Row Count 18 (+ 1)
                        placeholder="Number In Stock" \newline % Row Count 20 (+ 2)
                        onChange=\{(event) =\textgreater{} setBook(\{ ...book, numberInStock: event.target.value \})\} \newline % Row Count 23 (+ 3)
                        value=\{book.numberInStock\} \newline % Row Count 25 (+ 2)
                        required \newline % Row Count 26 (+ 1)
                    /\textgreater{} \newline % Row Count 27 (+ 1)
                \textless{}/div\textgreater{} \newline % Row Count 28 (+ 1)
                \textless{}div className="form-group"\textgreater{} \newline % Row Count 29 (+ 1)
                    \textless{}label htmlFor="price" className="p-3"\textgreater{} \newline % Row Count 31 (+ 2)
} \tn 
\end{tabularx}
\par\addvspace{1.3em}

\vfill
\columnbreak
\begin{tabularx}{8.4cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{8.4cm}}{\bf\textcolor{white}{Client \textgreater{} components / addBook.jsx (cont)}}  \tn
\SetRowColor{white}
\mymulticolumn{1}{x{8.4cm}}{                        Book Price \newline % Row Count 1 (+ 1)
                    \textless{}/label\textgreater{} \newline % Row Count 2 (+ 1)
                    \textless{}input \newline % Row Count 3 (+ 1)
                        type="text" \newline % Row Count 4 (+ 1)
                        name="price" \newline % Row Count 5 (+ 1)
                        id="price" \newline % Row Count 6 (+ 1)
                        className="form-control" \newline % Row Count 7 (+ 1)
                        placeholder="Enter a Price" \newline % Row Count 9 (+ 2)
                        onChange=\{(event) =\textgreater{} setBook(\{ ...book, price: event.target.value \})\} \newline % Row Count 11 (+ 2)
                        value=\{book.price\} \newline % Row Count 12 (+ 1)
                        required \newline % Row Count 13 (+ 1)
                    /\textgreater{} \newline % Row Count 14 (+ 1)
                \textless{}/div\textgreater{} \newline % Row Count 15 (+ 1)
                \textless{}div className="form-group"\textgreater{} \newline % Row Count 16 (+ 1)
                    \textless{}label htmlFor="rating" className="p-3"\textgreater{} \newline % Row Count 18 (+ 2)
                        Book Rating \newline % Row Count 19 (+ 1)
                    \textless{}/label\textgreater{} \newline % Row Count 20 (+ 1)
                    \textless{}input \newline % Row Count 21 (+ 1)
                        type="number" \newline % Row Count 22 (+ 1)
                        name="rating" \newline % Row Count 23 (+ 1)
                        id="rating" \newline % Row Count 24 (+ 1)
                        className="form-control" \newline % Row Count 25 (+ 1)
                        placeholder="Enter a Rating" \newline % Row Count 27 (+ 2)
                        onChange=\{(event) =\textgreater{} setBook(\{ ...book, rating: event.target.value \})\} \newline % Row Count 29 (+ 2)
                        value=\{book.rating\} \newline % Row Count 30 (+ 1)
} \tn 
\end{tabularx}
\par\addvspace{1.3em}

\vfill
\columnbreak
\begin{tabularx}{8.4cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{8.4cm}}{\bf\textcolor{white}{Client \textgreater{} components / addBook.jsx (cont)}}  \tn
\SetRowColor{white}
\mymulticolumn{1}{x{8.4cm}}{                        required \newline % Row Count 1 (+ 1)
                    /\textgreater{} \newline % Row Count 2 (+ 1)
                \textless{}/div\textgreater{} \newline % Row Count 3 (+ 1)
                \textless{}div className="form-group"\textgreater{} \newline % Row Count 4 (+ 1)
                    \textless{}label htmlFor="publishYear" className="p-3"\textgreater{} \newline % Row Count 6 (+ 2)
                        Book Publish Year \newline % Row Count 7 (+ 1)
                    \textless{}/label\textgreater{} \newline % Row Count 8 (+ 1)
                    \textless{}input \newline % Row Count 9 (+ 1)
                        type="date" \newline % Row Count 10 (+ 1)
                        name="publishYear" \newline % Row Count 11 (+ 1)
                        id="publishYear" \newline % Row Count 12 (+ 1)
                        className="form-control" \newline % Row Count 13 (+ 1)
                        placeholder="Enter a Publish Year" \newline % Row Count 15 (+ 2)
                        onChange=\{(event) =\textgreater{} setBook(\{ ...book, publishYear: event.target.value \})\} \newline % Row Count 17 (+ 2)
                        value=\{book.publishYear\} \newline % Row Count 18 (+ 1)
                        required \newline % Row Count 19 (+ 1)
                    /\textgreater{} \newline % Row Count 20 (+ 1)
                \textless{}/div\textgreater{} \newline % Row Count 21 (+ 1)
                \textless{}div className="form-group"\textgreater{} \newline % Row Count 22 (+ 1)
                    \textless{}label className="p-3 d-block"\textgreater{} \newline % Row Count 24 (+ 2)
                        Like Status (True/False) \newline % Row Count 25 (+ 1)
                    \textless{}/label\textgreater{} \newline % Row Count 26 (+ 1)
                    \textless{}div className="form-check form-check-inline"\textgreater{} \newline % Row Count 28 (+ 2)
                        \textless{}input \newline % Row Count 29 (+ 1)
                            type="radio" \newline % Row Count 30 (+ 1)
} \tn 
\end{tabularx}
\par\addvspace{1.3em}

\vfill
\columnbreak
\begin{tabularx}{8.4cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{8.4cm}}{\bf\textcolor{white}{Client \textgreater{} components / addBook.jsx (cont)}}  \tn
\SetRowColor{white}
\mymulticolumn{1}{x{8.4cm}}{                            name="like" \newline % Row Count 1 (+ 1)
                            id="like-true" \newline % Row Count 2 (+ 1)
                            \seqsplit{className="form-check-input"} \newline % Row Count 4 (+ 2)
                            checked=\{book.like === true\} \newline % Row Count 6 (+ 2)
                            onChange=\{() =\textgreater{} setBook(\{ ...book, like: true \})\} \newline % Row Count 8 (+ 2)
                            required \newline % Row Count 9 (+ 1)
                        /\textgreater{} \newline % Row Count 10 (+ 1)
                        \textless{}label htmlFor="like-true" className="form-check-label"\textgreater{} \newline % Row Count 12 (+ 2)
                            True \newline % Row Count 13 (+ 1)
                        \textless{}/label\textgreater{} \newline % Row Count 14 (+ 1)
                    \textless{}/div\textgreater{} \newline % Row Count 15 (+ 1)
                    \textless{}div className="form-check form-check-inline"\textgreater{} \newline % Row Count 17 (+ 2)
                        \textless{}input \newline % Row Count 18 (+ 1)
                            type="radio" \newline % Row Count 19 (+ 1)
                            name="like" \newline % Row Count 20 (+ 1)
                            id="like-false" \newline % Row Count 21 (+ 1)
                            \seqsplit{className="form-check-input"} \newline % Row Count 23 (+ 2)
                            checked=\{book.like === false\} \newline % Row Count 25 (+ 2)
                            onChange=\{() =\textgreater{} setBook(\{ ...book, like: false \})\} \newline % Row Count 27 (+ 2)
                            required \newline % Row Count 28 (+ 1)
                        /\textgreater{} \newline % Row Count 29 (+ 1)
                        \textless{}label htmlFor="like-false" className="form-check-label"\textgreater{} \newline % Row Count 31 (+ 2)
} \tn 
\end{tabularx}
\par\addvspace{1.3em}

\vfill
\columnbreak
\begin{tabularx}{8.4cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{8.4cm}}{\bf\textcolor{white}{Client \textgreater{} components / addBook.jsx (cont)}}  \tn
\SetRowColor{white}
\mymulticolumn{1}{x{8.4cm}}{                            False \newline % Row Count 1 (+ 1)
                        \textless{}/label\textgreater{} \newline % Row Count 2 (+ 1)
                    \textless{}/div\textgreater{} \newline % Row Count 3 (+ 1)
                \textless{}/div\textgreater{} \newline % Row Count 4 (+ 1)
                \textless{}button className="m-5 p-3 w-25"\textgreater{}ADD THE BOOK\textless{}/button\textgreater{} \newline % Row Count 6 (+ 2)
            \textless{}/form\textgreater{} \newline % Row Count 7 (+ 1)
        \textless{}/div\textgreater{} \newline % Row Count 8 (+ 1)
    ); \newline % Row Count 9 (+ 1)
\}; \newline % Row Count 10 (+ 1)
export default AddBook;% Row Count 11 (+ 1)
} \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{8.4cm}}{\bf\textcolor{white}{Client \textgreater{} components / updateBook.jsx}}  \tn
\SetRowColor{white}
\mymulticolumn{1}{x{8.4cm}}{import \{ getBookUrl \} from "../config/api"; \newline % Row Count 1 (+ 1)
const UpdateBook = (\{ onUpdate = (f) =\textgreater{} f \}) =\textgreater{} \{ \newline % Row Count 2 (+ 1)
    const {[}book, setBook{]} = useState(\{ \newline % Row Count 3 (+ 1)
        title: "", \newline % Row Count 4 (+ 1)
        author: "", \newline % Row Count 5 (+ 1)
        numberInStock: "", \newline % Row Count 6 (+ 1)
        price: "", \newline % Row Count 7 (+ 1)
        rating: "", \newline % Row Count 8 (+ 1)
        publishYear: "", \newline % Row Count 9 (+ 1)
        like: "", \newline % Row Count 10 (+ 1)
    \}); \newline % Row Count 11 (+ 1)
    const \{ id \} = useParams(); \newline % Row Count 12 (+ 1)
    useEffect(() =\textgreater{} \{ \newline % Row Count 13 (+ 1)
        const fetchData = async () =\textgreater{} \{ \newline % Row Count 14 (+ 1)
            try \{ \newline % Row Count 15 (+ 1)
                const \{ data \} = await \seqsplit{axios.get(getBookUrl(id));} \newline % Row Count 17 (+ 2)
                const date = new \seqsplit{Date(data.publishYear).toISOString().slice(0}, 10); \newline % Row Count 19 (+ 2)
                setBook(\{ ...data, publishYear: date \}); //data is the existing book in the DB \newline % Row Count 21 (+ 2)
            \} catch (err) \{ \newline % Row Count 22 (+ 1)
                console.log(`There is an ERROR in fetching \$\{err.message\}`); \newline % Row Count 24 (+ 2)
            \} \newline % Row Count 25 (+ 1)
        \}; \newline % Row Count 26 (+ 1)
        fetchData(); \newline % Row Count 27 (+ 1)
        return () =\textgreater{} \{ \newline % Row Count 28 (+ 1)
            //clean up \newline % Row Count 29 (+ 1)
        \}; \newline % Row Count 30 (+ 1)
} \tn 
\end{tabularx}
\par\addvspace{1.3em}

\vfill
\columnbreak
\begin{tabularx}{8.4cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{8.4cm}}{\bf\textcolor{white}{Client \textgreater{} components / updateBook.jsx (cont)}}  \tn
\SetRowColor{white}
\mymulticolumn{1}{x{8.4cm}}{    \}, {[}id{]}); \newline % Row Count 1 (+ 1)
    const navigate = useNavigate(); \newline % Row Count 2 (+ 1)
    const submitForm = (e) =\textgreater{} \{ \newline % Row Count 3 (+ 1)
        e.preventDefault(); \newline % Row Count 4 (+ 1)
        onUpdate(book); \newline % Row Count 5 (+ 1)
        setBook(\{ \newline % Row Count 6 (+ 1)
            title: "", \newline % Row Count 7 (+ 1)
            author: "", \newline % Row Count 8 (+ 1)
            numberInStock: "", \newline % Row Count 9 (+ 1)
            price: "", \newline % Row Count 10 (+ 1)
            rating: "", \newline % Row Count 11 (+ 1)
            publishYear: "", \newline % Row Count 12 (+ 1)
            like: "", \newline % Row Count 13 (+ 1)
        \}); \newline % Row Count 14 (+ 1)
        navigate("/"); \newline % Row Count 15 (+ 1)
    \}; \newline % Row Count 16 (+ 1)
    return ( \newline % Row Count 17 (+ 1)
        \textless{}div\textgreater{} \newline % Row Count 18 (+ 1)
            \textless{}h1\textgreater{}Please enter the details of the updated Book here..\textless{}/h1\textgreater{} \newline % Row Count 20 (+ 2)
            \textless{}form onSubmit=\{submitForm\} method="post"\textgreater{} \newline % Row Count 22 (+ 2)
                \textless{}div className="form-group"\textgreater{} \newline % Row Count 23 (+ 1)
                    \textless{}label htmlFor="title" className="p-3"\textgreater{} \newline % Row Count 25 (+ 2)
                        Book Title \newline % Row Count 26 (+ 1)
                    \textless{}/label\textgreater{} \newline % Row Count 27 (+ 1)
                    \textless{}input \newline % Row Count 28 (+ 1)
                        type="text" \newline % Row Count 29 (+ 1)
                        name="title" \newline % Row Count 30 (+ 1)
} \tn 
\end{tabularx}
\par\addvspace{1.3em}

\vfill
\columnbreak
\begin{tabularx}{8.4cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{8.4cm}}{\bf\textcolor{white}{Client \textgreater{} components / updateBook.jsx (cont)}}  \tn
\SetRowColor{white}
\mymulticolumn{1}{x{8.4cm}}{                        id="title" \newline % Row Count 1 (+ 1)
                        className="form-control" \newline % Row Count 2 (+ 1)
                        placeholder="Enter a Title" \newline % Row Count 4 (+ 2)
                        onChange=\{(event) =\textgreater{} setBook(\{ ...book, title: event.target.value \})\} \newline % Row Count 6 (+ 2)
                        value=\{book.title\} \newline % Row Count 7 (+ 1)
                        required \newline % Row Count 8 (+ 1)
                    /\textgreater{} \newline % Row Count 9 (+ 1)
                \textless{}/div\textgreater{} \newline % Row Count 10 (+ 1)
                \textless{}div className="form-group"\textgreater{} \newline % Row Count 11 (+ 1)
                    \textless{}label htmlFor="author" className="p-3"\textgreater{} \newline % Row Count 13 (+ 2)
                        Book Author \newline % Row Count 14 (+ 1)
                    \textless{}/label\textgreater{} \newline % Row Count 15 (+ 1)
                    \textless{}input \newline % Row Count 16 (+ 1)
                        type="text" \newline % Row Count 17 (+ 1)
                        name="author" \newline % Row Count 18 (+ 1)
                        id="author" \newline % Row Count 19 (+ 1)
                        className="form-control" \newline % Row Count 20 (+ 1)
                        placeholder="Enter an Author" \newline % Row Count 22 (+ 2)
                        onChange=\{(event) =\textgreater{} setBook(\{ ...book, author: event.target.value \})\} \newline % Row Count 24 (+ 2)
                        value=\{book.author\} \newline % Row Count 25 (+ 1)
                        required \newline % Row Count 26 (+ 1)
                    /\textgreater{} \newline % Row Count 27 (+ 1)
                \textless{}/div\textgreater{} \newline % Row Count 28 (+ 1)
                \textless{}div className="form-group"\textgreater{} \newline % Row Count 29 (+ 1)
                    \textless{}label htmlFor="numberInStock" className="p-3"\textgreater{} \newline % Row Count 31 (+ 2)
} \tn 
\end{tabularx}
\par\addvspace{1.3em}

\vfill
\columnbreak
\begin{tabularx}{8.4cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{8.4cm}}{\bf\textcolor{white}{Client \textgreater{} components / updateBook.jsx (cont)}}  \tn
\SetRowColor{white}
\mymulticolumn{1}{x{8.4cm}}{                        Number In Stock \newline % Row Count 1 (+ 1)
                    \textless{}/label\textgreater{} \newline % Row Count 2 (+ 1)
                    \textless{}input \newline % Row Count 3 (+ 1)
                        type="number" \newline % Row Count 4 (+ 1)
                        name="numberInStock" \newline % Row Count 5 (+ 1)
                        id="numberInStock" \newline % Row Count 6 (+ 1)
                        className="form-control" \newline % Row Count 7 (+ 1)
                        placeholder="Number In Stock" \newline % Row Count 9 (+ 2)
                        onChange=\{(event) =\textgreater{} setBook(\{ ...book, numberInStock: event.target.value \})\} \newline % Row Count 12 (+ 3)
                        value=\{book.numberInStock\} \newline % Row Count 14 (+ 2)
                        required \newline % Row Count 15 (+ 1)
                    /\textgreater{} \newline % Row Count 16 (+ 1)
                \textless{}/div\textgreater{} \newline % Row Count 17 (+ 1)
                \textless{}div className="form-group"\textgreater{} \newline % Row Count 18 (+ 1)
                    \textless{}label htmlFor="price" className="p-3"\textgreater{} \newline % Row Count 20 (+ 2)
                        Book Price \newline % Row Count 21 (+ 1)
                    \textless{}/label\textgreater{} \newline % Row Count 22 (+ 1)
                    \textless{}input \newline % Row Count 23 (+ 1)
                        type="text" \newline % Row Count 24 (+ 1)
                        name="price" \newline % Row Count 25 (+ 1)
                        id="price" \newline % Row Count 26 (+ 1)
                        className="form-control" \newline % Row Count 27 (+ 1)
                        placeholder="Enter a Price" \newline % Row Count 29 (+ 2)
                        onChange=\{(event) =\textgreater{} setBook(\{ ...book, price: event.target.value \})\} \newline % Row Count 31 (+ 2)
} \tn 
\end{tabularx}
\par\addvspace{1.3em}

\vfill
\columnbreak
\begin{tabularx}{8.4cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{8.4cm}}{\bf\textcolor{white}{Client \textgreater{} components / updateBook.jsx (cont)}}  \tn
\SetRowColor{white}
\mymulticolumn{1}{x{8.4cm}}{                        value=\{book.price\} \newline % Row Count 1 (+ 1)
                        required \newline % Row Count 2 (+ 1)
                    /\textgreater{} \newline % Row Count 3 (+ 1)
                \textless{}/div\textgreater{} \newline % Row Count 4 (+ 1)
                \textless{}div className="form-group"\textgreater{} \newline % Row Count 5 (+ 1)
                    \textless{}label htmlFor="rating" className="p-3"\textgreater{} \newline % Row Count 7 (+ 2)
                        Book Rating \newline % Row Count 8 (+ 1)
                    \textless{}/label\textgreater{} \newline % Row Count 9 (+ 1)
                    \textless{}input \newline % Row Count 10 (+ 1)
                        type="number" \newline % Row Count 11 (+ 1)
                        name="rating" \newline % Row Count 12 (+ 1)
                        id="rating" \newline % Row Count 13 (+ 1)
                        className="form-control" \newline % Row Count 14 (+ 1)
                        placeholder="Enter a Rating" \newline % Row Count 16 (+ 2)
                        onChange=\{(event) =\textgreater{} setBook(\{ ...book, rating: event.target.value \})\} \newline % Row Count 18 (+ 2)
                        value=\{book.rating\} \newline % Row Count 19 (+ 1)
                        required \newline % Row Count 20 (+ 1)
                    /\textgreater{} \newline % Row Count 21 (+ 1)
                \textless{}/div\textgreater{} \newline % Row Count 22 (+ 1)
                \textless{}div className="form-group"\textgreater{} \newline % Row Count 23 (+ 1)
                    \textless{}label htmlFor="publishYear" className="p-3"\textgreater{} \newline % Row Count 25 (+ 2)
                        Book Publish Year \newline % Row Count 26 (+ 1)
                    \textless{}/label\textgreater{} \newline % Row Count 27 (+ 1)
                    \textless{}input \newline % Row Count 28 (+ 1)
                        type="date" \newline % Row Count 29 (+ 1)
                        name="publishYear" \newline % Row Count 30 (+ 1)
} \tn 
\end{tabularx}
\par\addvspace{1.3em}

\vfill
\columnbreak
\begin{tabularx}{8.4cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{8.4cm}}{\bf\textcolor{white}{Client \textgreater{} components / updateBook.jsx (cont)}}  \tn
\SetRowColor{white}
\mymulticolumn{1}{x{8.4cm}}{                        id="publishYear" \newline % Row Count 1 (+ 1)
                        className="form-control" \newline % Row Count 2 (+ 1)
                        placeholder="Enter a Publish Year" \newline % Row Count 4 (+ 2)
                        onChange=\{(event) =\textgreater{} setBook(\{ ...book, publishYear: event.target.value \})\} \newline % Row Count 6 (+ 2)
                        value=\{book.publishYear\} \newline % Row Count 7 (+ 1)
                        required \newline % Row Count 8 (+ 1)
                    /\textgreater{} \newline % Row Count 9 (+ 1)
                \textless{}/div\textgreater{} \newline % Row Count 10 (+ 1)
                \textless{}div className="form-group"\textgreater{} \newline % Row Count 11 (+ 1)
                    \textless{}label className="p-3 d-block"\textgreater{}Like Status (True/False)\textless{}/label\textgreater{} \newline % Row Count 13 (+ 2)
                    \textless{}div className="form-check form-check-inline"\textgreater{} \newline % Row Count 15 (+ 2)
                        \textless{}input \newline % Row Count 16 (+ 1)
                            type="radio" \newline % Row Count 17 (+ 1)
                            name="like" \newline % Row Count 18 (+ 1)
                            id="like-true" \newline % Row Count 19 (+ 1)
                            \seqsplit{className="form-check-input"} \newline % Row Count 21 (+ 2)
                            checked=\{book.like === true\} \newline % Row Count 23 (+ 2)
                            onChange=\{() =\textgreater{} setBook(\{ ...book, like: true \})\} \newline % Row Count 25 (+ 2)
                            required \newline % Row Count 26 (+ 1)
                        /\textgreater{} \newline % Row Count 27 (+ 1)
                        \textless{}label htmlFor="like-true" className="form-check-label"\textgreater{} \newline % Row Count 29 (+ 2)
                            True \newline % Row Count 30 (+ 1)
} \tn 
\end{tabularx}
\par\addvspace{1.3em}

\vfill
\columnbreak
\begin{tabularx}{8.4cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{8.4cm}}{\bf\textcolor{white}{Client \textgreater{} components / updateBook.jsx (cont)}}  \tn
\SetRowColor{white}
\mymulticolumn{1}{x{8.4cm}}{                        \textless{}/label\textgreater{} \newline % Row Count 1 (+ 1)
                    \textless{}/div\textgreater{} \newline % Row Count 2 (+ 1)
                    \textless{}div className="form-check form-check-inline"\textgreater{} \newline % Row Count 4 (+ 2)
                        \textless{}input \newline % Row Count 5 (+ 1)
                            type="radio" \newline % Row Count 6 (+ 1)
                            name="like" \newline % Row Count 7 (+ 1)
                            id="like-false" \newline % Row Count 8 (+ 1)
                            \seqsplit{className="form-check-input"} \newline % Row Count 10 (+ 2)
                            checked=\{book.like === false\} \newline % Row Count 12 (+ 2)
                            onChange=\{() =\textgreater{} setBook(\{ ...book, like: false \})\} \newline % Row Count 14 (+ 2)
                            required \newline % Row Count 15 (+ 1)
                        /\textgreater{} \newline % Row Count 16 (+ 1)
                        \textless{}label htmlFor="like-false" className="form-check-label"\textgreater{} \newline % Row Count 18 (+ 2)
                            False \newline % Row Count 19 (+ 1)
                        \textless{}/label\textgreater{} \newline % Row Count 20 (+ 1)
                    \textless{}/div\textgreater{} \newline % Row Count 21 (+ 1)
                \textless{}/div\textgreater{} \newline % Row Count 22 (+ 1)
                \textless{}button className="m-5 p-3 w-25"\textgreater{}UPDATE THE BOOK\textless{}/button\textgreater{} \newline % Row Count 24 (+ 2)
            \textless{}/form\textgreater{} \newline % Row Count 25 (+ 1)
        \textless{}/div\textgreater{} \newline % Row Count 26 (+ 1)
    ); \newline % Row Count 27 (+ 1)
\}; \newline % Row Count 28 (+ 1)
export default UpdateBook;% Row Count 29 (+ 1)
} \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{8.4cm}}{\bf\textcolor{white}{Client \textgreater{} navBar.jsx}}  \tn
\SetRowColor{white}
\mymulticolumn{1}{x{8.4cm}}{import \{ Link \} from "react-router-dom"; \newline % Row Count 1 (+ 1)
const NavBar = () =\textgreater{} \{ \newline % Row Count 2 (+ 1)
    return ( \newline % Row Count 3 (+ 1)
        \textless{}nav className="navbar navbar-expand-lg navbar-light bg-light"\textgreater{} \newline % Row Count 5 (+ 2)
            \textless{}div className="collapse navbar-collapse" id="navbarNav"\textgreater{} \newline % Row Count 7 (+ 2)
                \textless{}ul className="navbar-nav"\textgreater{} \newline % Row Count 8 (+ 1)
                    \textless{}li className="nav-item active"\textgreater{} \newline % Row Count 10 (+ 2)
                        \textless{}Link className="nav-link" to="/"\textgreater{} \newline % Row Count 12 (+ 2)
                            My Book Library \newline % Row Count 13 (+ 1)
                        \textless{}/Link\textgreater{} \newline % Row Count 14 (+ 1)
                    \textless{}/li\textgreater{} \newline % Row Count 15 (+ 1)
                    \textless{}li className="nav-item"\textgreater{} \newline % Row Count 16 (+ 1)
                        \textless{}Link className="nav-link" to="/"\textgreater{} \newline % Row Count 18 (+ 2)
                            Books \newline % Row Count 19 (+ 1)
                        \textless{}/Link\textgreater{} \newline % Row Count 20 (+ 1)
                    \textless{}/li\textgreater{} \newline % Row Count 21 (+ 1)
                    \textless{}li className="nav-item"\textgreater{} \newline % Row Count 22 (+ 1)
                        \textless{}Link className="nav-link" to="addbook"\textgreater{} \newline % Row Count 24 (+ 2)
                            Add a Book \newline % Row Count 25 (+ 1)
                        \textless{}/Link\textgreater{} \newline % Row Count 26 (+ 1)
                    \textless{}/li\textgreater{} \newline % Row Count 27 (+ 1)
                \textless{}/ul\textgreater{} \newline % Row Count 28 (+ 1)
            \textless{}/div\textgreater{} \newline % Row Count 29 (+ 1)
        \textless{}/nav\textgreater{} \newline % Row Count 30 (+ 1)
} \tn 
\end{tabularx}
\par\addvspace{1.3em}

\vfill
\columnbreak
\begin{tabularx}{8.4cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{8.4cm}}{\bf\textcolor{white}{Client \textgreater{} navBar.jsx (cont)}}  \tn
\SetRowColor{white}
\mymulticolumn{1}{x{8.4cm}}{    ); \newline % Row Count 1 (+ 1)
\}; \newline % Row Count 2 (+ 1)
export default NavBar;% Row Count 3 (+ 1)
} \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{8.4cm}}{\bf\textcolor{white}{Server \textgreater{} config / db.js}}  \tn
\SetRowColor{white}
\mymulticolumn{1}{x{8.4cm}}{import mongoose from "mongoose"; \newline % Row Count 1 (+ 1)
import \{ url \} from "../atlas\_uri.js"; \newline % Row Count 2 (+ 1)
export const connectDB = async () =\textgreater{} \{ \newline % Row Count 3 (+ 1)
    try \{ \newline % Row Count 4 (+ 1)
        await mongoose.connect(url); \newline % Row Count 5 (+ 1)
        console.log("Connected to DB"); \newline % Row Count 6 (+ 1)
    \} catch (err) \{ \newline % Row Count 7 (+ 1)
        console.log(`ERROR in connecting: \$\{err.message\}`); \newline % Row Count 9 (+ 2)
        process.exit(1); //exit in case of failure \newline % Row Count 11 (+ 2)
    \} \newline % Row Count 12 (+ 1)
\}; \newline % Row Count 13 (+ 1)
export const disconnectDB = async () =\textgreater{} \{ \newline % Row Count 14 (+ 1)
    await \seqsplit{mongoose.connection.close();} \newline % Row Count 15 (+ 1)
    console.log("Connection closed"); \newline % Row Count 16 (+ 1)
\};% Row Count 17 (+ 1)
} \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{8.4cm}}{\bf\textcolor{white}{Server \textgreater{} models / books.js}}  \tn
\SetRowColor{white}
\mymulticolumn{1}{x{8.4cm}}{import mongoose from "mongoose"; \newline % Row Count 1 (+ 1)
const bookSchema = new mongoose.Schema(\{ \newline % Row Count 2 (+ 1)
    title: \{ \newline % Row Count 3 (+ 1)
        type: String, \newline % Row Count 4 (+ 1)
        required: {[}true, "Please check your entry, no title specified."{]}, \newline % Row Count 6 (+ 2)
    \}, \newline % Row Count 7 (+ 1)
    author: \{ \newline % Row Count 8 (+ 1)
        type: String, \newline % Row Count 9 (+ 1)
        required: {[}true, "Please check your entry, no author specified."{]}, \newline % Row Count 11 (+ 2)
    \}, \newline % Row Count 12 (+ 1)
    numberInStock: \{ \newline % Row Count 13 (+ 1)
        type: Number, \newline % Row Count 14 (+ 1)
        required: {[}true, "Number in Stock is missing. Please provide a value."{]}, \newline % Row Count 16 (+ 2)
    \}, \newline % Row Count 17 (+ 1)
    price: Number, \newline % Row Count 18 (+ 1)
    rating: \{ \newline % Row Count 19 (+ 1)
        type: Number, \newline % Row Count 20 (+ 1)
        min: 1, \newline % Row Count 21 (+ 1)
        max: 10, \newline % Row Count 22 (+ 1)
        required: {[}true, "The rating is required, please specify a value between 1-100."{]}, \newline % Row Count 24 (+ 2)
    \}, \newline % Row Count 25 (+ 1)
    publishYear: \{ \newline % Row Count 26 (+ 1)
        type: Date, \newline % Row Count 27 (+ 1)
        default: Date.now, // No parentheses to ensure execution at creation time \newline % Row Count 29 (+ 2)
    \}, \newline % Row Count 30 (+ 1)
} \tn 
\end{tabularx}
\par\addvspace{1.3em}

\vfill
\columnbreak
\begin{tabularx}{8.4cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{8.4cm}}{\bf\textcolor{white}{Server \textgreater{} models / books.js (cont)}}  \tn
\SetRowColor{white}
\mymulticolumn{1}{x{8.4cm}}{    like: Boolean, \newline % Row Count 1 (+ 1)
\}); \newline % Row Count 2 (+ 1)
export const Book = mongoose.model("Book", bookSchema);% Row Count 4 (+ 2)
} \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{8.4cm}}{\bf\textcolor{white}{Server \textgreater{} server.js}}  \tn
\SetRowColor{white}
\mymulticolumn{1}{x{8.4cm}}{import express from "express"; \newline % Row Count 1 (+ 1)
import \{ connectDB \} from "./config/db.js"; \newline % Row Count 2 (+ 1)
import router from \seqsplit{"./routes/basicRoutes.js";} \newline % Row Count 3 (+ 1)
import cors from "cors"; \newline % Row Count 4 (+ 1)
//1. create an express application \newline % Row Count 5 (+ 1)
const app = express(); \newline % Row Count 6 (+ 1)
//2. set up all the middlewares \newline % Row Count 7 (+ 1)
app.use(express.urlencoded(\{ extended: true \})); \newline % Row Count 8 (+ 1)
app.use(express.json()); \newline % Row Count 9 (+ 1)
\seqsplit{app.use(express.static("public"));} \newline % Row Count 10 (+ 1)
app.use(cors()); \newline % Row Count 11 (+ 1)
//3. connect to the database \newline % Row Count 12 (+ 1)
connectDB(); \newline % Row Count 13 (+ 1)
//4. set up the routes \newline % Row Count 14 (+ 1)
app.use("/", router); \newline % Row Count 15 (+ 1)
//5. make your server listen to port 3000 \newline % Row Count 16 (+ 1)
const PORT = process.env.PORT || 3000; \newline % Row Count 17 (+ 1)
app.listen(PORT, () =\textgreater{} \{ \newline % Row Count 18 (+ 1)
    console.log(`The server is up and listening on PORT\$\{PORT\}`); \newline % Row Count 20 (+ 2)
\});% Row Count 21 (+ 1)
} \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{8.4cm}}{\bf\textcolor{white}{Server \textgreater{} routes / basicRoutes.js}}  \tn
\SetRowColor{white}
\mymulticolumn{1}{x{8.4cm}}{import express from "express"; \newline % Row Count 1 (+ 1)
import \{ Book \} from "../models/books.js"; \newline % Row Count 2 (+ 1)
const router = express.Router(); \newline % Row Count 3 (+ 1)
//GET ALL BOOKS - READ OPERATION \newline % Row Count 4 (+ 1)
router.get("/books", async (req, res) =\textgreater{} \{ \newline % Row Count 5 (+ 1)
    try \{ \newline % Row Count 6 (+ 1)
        const books = await Book.find(); \newline % Row Count 7 (+ 1)
        if (books.length === 0) \{ \newline % Row Count 8 (+ 1)
            return res.status(404).json(\{ error: "There are no books." \}); \newline % Row Count 10 (+ 2)
        \} \newline % Row Count 11 (+ 1)
        res.json(books); \newline % Row Count 12 (+ 1)
    \} catch (err) \{ \newline % Row Count 13 (+ 1)
        //500 -{}-\textgreater{} Internal Server Error \newline % Row Count 14 (+ 1)
        res.status(500).json(\{ error: err.message \}); \newline % Row Count 16 (+ 2)
    \} \newline % Row Count 17 (+ 1)
\}); \newline % Row Count 18 (+ 1)
//GET ONE BOOK - READ OPERATION \newline % Row Count 19 (+ 1)
router.get("/books/:id", async (req, res) =\textgreater{} \{ \newline % Row Count 20 (+ 1)
    const \{ id \} = req.params; \newline % Row Count 21 (+ 1)
    try \{ \newline % Row Count 22 (+ 1)
        // const book = await Book.findById(id); \newline % Row Count 23 (+ 1)
        // const book = await Book.findOne(\{"title":"Eloquent JavaScript"\}); \newline % Row Count 25 (+ 2)
        const book = await Book.findOne(\{ \_id: id \}); \newline % Row Count 27 (+ 2)
        if (!book) \{ \newline % Row Count 28 (+ 1)
            return res.status(404).json(\{ error: "There are no such book." \}); \newline % Row Count 30 (+ 2)
} \tn 
\end{tabularx}
\par\addvspace{1.3em}

\vfill
\columnbreak
\begin{tabularx}{8.4cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{8.4cm}}{\bf\textcolor{white}{Server \textgreater{} routes / basicRoutes.js (cont)}}  \tn
\SetRowColor{white}
\mymulticolumn{1}{x{8.4cm}}{        \} \newline % Row Count 1 (+ 1)
        res.json(book); \newline % Row Count 2 (+ 1)
    \} catch (err) \{ \newline % Row Count 3 (+ 1)
        //500 -{}-\textgreater{} Internal Server Error \newline % Row Count 4 (+ 1)
        res.status(500).json(\{ error: err.message \}); \newline % Row Count 6 (+ 2)
    \} \newline % Row Count 7 (+ 1)
\}); \newline % Row Count 8 (+ 1)
//POST BOOK - CREATE OPERATION \newline % Row Count 9 (+ 1)
router.post("/books", async (req, res) =\textgreater{} \{ \newline % Row Count 10 (+ 1)
    try \{ \newline % Row Count 11 (+ 1)
        const book = new Book(req.body); \newline % Row Count 12 (+ 1)
        const savedBook = await book.save(); \newline % Row Count 13 (+ 1)
        \seqsplit{res.status(201).json(savedBook);} \newline % Row Count 14 (+ 1)
    \} catch (err) \{ \newline % Row Count 15 (+ 1)
        //500 -{}-\textgreater{} Internal Server Error \newline % Row Count 16 (+ 1)
        res.status(500).json(\{ error: err.message \}); \newline % Row Count 18 (+ 2)
    \} \newline % Row Count 19 (+ 1)
\}); \newline % Row Count 20 (+ 1)
//PUT BOOK - UPDATE OPERATION \newline % Row Count 21 (+ 1)
router.put("/books/:id", async (req, res) =\textgreater{} \{ \newline % Row Count 22 (+ 1)
    const \{ id \} = req.params; \newline % Row Count 23 (+ 1)
    try \{ \newline % Row Count 24 (+ 1)
        const upatedBook = await \seqsplit{Book.findByIdAndUpdate(id}, req.body, \{ new: true, runValidators: true \}); \newline % Row Count 27 (+ 3)
        if (!upatedBook) \{ \newline % Row Count 28 (+ 1)
            return res.status(404).json(\{ error: "There are no such book." \}); \newline % Row Count 30 (+ 2)
} \tn 
\end{tabularx}
\par\addvspace{1.3em}

\vfill
\columnbreak
\begin{tabularx}{8.4cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{8.4cm}}{\bf\textcolor{white}{Server \textgreater{} routes / basicRoutes.js (cont)}}  \tn
\SetRowColor{white}
\mymulticolumn{1}{x{8.4cm}}{        \} \newline % Row Count 1 (+ 1)
        res.json(upatedBook); \newline % Row Count 2 (+ 1)
    \} catch (err) \{ \newline % Row Count 3 (+ 1)
        //500 -{}-\textgreater{} Internal Server Error \newline % Row Count 4 (+ 1)
        res.status(500).json(\{ error: err.message \}); \newline % Row Count 6 (+ 2)
    \} \newline % Row Count 7 (+ 1)
\}); \newline % Row Count 8 (+ 1)
//DELETE BOOK - DELETE OPERATION \newline % Row Count 9 (+ 1)
\seqsplit{router.delete("/books/:id"}, async (req, res) =\textgreater{} \{ \newline % Row Count 10 (+ 1)
    const \{ id \} = req.params; \newline % Row Count 11 (+ 1)
    try \{ \newline % Row Count 12 (+ 1)
        const deletedBook = await \seqsplit{Book.findByIdAndDelete(id);} \newline % Row Count 14 (+ 2)
        if (!deletedBook) \{ \newline % Row Count 15 (+ 1)
            return res.status(404).json(\{ error: "There are no such book." \}); \newline % Row Count 17 (+ 2)
        \} \newline % Row Count 18 (+ 1)
        res.json(deletedBook); \newline % Row Count 19 (+ 1)
    \} catch (err) \{ \newline % Row Count 20 (+ 1)
        //500 -{}-\textgreater{} Internal Server Error \newline % Row Count 21 (+ 1)
        res.status(500).json(\{ error: err.message \}); \newline % Row Count 23 (+ 2)
    \} \newline % Row Count 24 (+ 1)
\}); \newline % Row Count 25 (+ 1)
export default router;% Row Count 26 (+ 1)
} \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}


% That's all folks
\end{multicols*}

\end{document}