\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{KNiGHT BLOOD (spegusess)}
\pdfinfo{
  /Title (reactjs.pdf)
  /Creator (Cheatography)
  /Author (KNiGHT BLOOD (spegusess))
  /Subject (ReactJS 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}{1F8DA3}
\definecolor{LightBackground}{HTML}{F1F7F9}
\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{ReactJS Cheat Sheet}}}} \\
    \normalsize{by \textcolor{DarkBackground}{KNiGHT BLOOD (spegusess)} via \textcolor{DarkBackground}{\uline{cheatography.com/108914/cs/21609/}}}
\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}KNiGHT BLOOD (spegusess) \\
  \uline{cheatography.com/spegusess} \\
        \uline{\seqsplit{blackvisionlab}.com}
  \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 17th January, 2020.\\
   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*}{3}

\begin{tabularx}{5.377cm}{x{1.29402 cm} x{3.68298 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{Easy Install}}  \tn
% Row 0
\SetRowColor{LightBackground}
create app & npm create-react-app my-app \tn 
% Row Count 1 (+ 1)
% Row 1
\SetRowColor{white}
delete src & del src/* \tn 
% Row Count 2 (+ 1)
% Row 2
\SetRowColor{LightBackground}
creating files & type nul \textgreater{} index.css \{\{nl\}\} type nul \textgreater{} index.js \tn 
% Row Count 4 (+ 2)
% Row 3
\SetRowColor{white}
index.js & `import React from 'react'; \{\{nl\}\}import ReactDOM from 'react-dom'; \{\{nl\}\}import './index.css';` \tn 
% Row Count 8 (+ 4)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{x{2.4885 cm} x{2.4885 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{Build}}  \tn
% Row 0
\SetRowColor{LightBackground}
run server & npm start \tn 
% Row Count 1 (+ 1)
% Row 1
\SetRowColor{white}
create bundle & npm run build \tn 
% Row Count 2 (+ 1)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{p{0.4977 cm} p{0.4977 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{Deploy}}  \tn
% Row 0
\SetRowColor{LightBackground}
\mymulticolumn{2}{x{5.377cm}}{} \tn 
% Row Count 0 (+ 0)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{x{1.34379 cm} x{3.63321 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{Setup from Scratch}}  \tn
% Row 0
\SetRowColor{LightBackground}
\seqsplit{Initializing} & npm init \tn 
% Row Count 2 (+ 2)
% Row 1
\SetRowColor{white}
Install React & npm install react react-dom -{}-save \tn 
% Row Count 4 (+ 2)
% Row 2
\SetRowColor{LightBackground}
Install webpack & npm install webpack webpack-dev-server webpack-cli -{}-save \tn 
% Row Count 6 (+ 2)
% Row 3
\SetRowColor{white}
Install babel & npm install babel-core babel-loader babel-preset-env     babel-preset-react html-webpack-plugin -{}-save-dev \tn 
% Row Count 10 (+ 4)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{x{1.94103 cm} x{3.03597 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{Structure}}  \tn
% Row 0
\SetRowColor{LightBackground}
index.html & type nul \textgreater{} index.html \tn 
% Row Count 1 (+ 1)
% Row 1
\SetRowColor{white}
App.js & type nul \textgreater{} App.js \tn 
% Row Count 2 (+ 1)
% Row 2
\SetRowColor{LightBackground}
main.js & type nul \textgreater{} main.js \tn 
% Row Count 3 (+ 1)
% Row 3
\SetRowColor{white}
\seqsplit{webpack.config.js} & type nul \textgreater{} webpackconfig.js \tn 
% Row Count 5 (+ 2)
% Row 4
\SetRowColor{LightBackground}
.babelrc & type nul \textgreater{} .babelrc \tn 
% Row Count 6 (+ 1)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{5.377cm}}{\bf\textcolor{white}{React}}  \tn
\SetRowColor{LightBackground}
\mymulticolumn{1}{p{5.377cm}}{\vspace{1px}\centerline{\includegraphics[width=5.1cm]{/web/www.cheatography.com/public/uploads/spegusess_1579279202_kisspng-react-logo-redux-webpack-babel--5b7b7258327b51.9184659615348168562068.jpg}}} \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{5.377cm}}{\bf\textcolor{white}{Set Compiler, Server \& Loader}}  \tn
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{{\bf{ File : webpack.config.js }} \newline  \newline const path = require('path'); \newline const HtmlWebpackPlugin = \seqsplit{require('html-webpack-plugin');} \newline  \newline module.exports = \{ \newline    entry: './main.js', \newline    output: \{ \newline       path: path.join(\_\_dirname, '/bundle'), \newline       filename: 'index\_bundle.js' \newline    \}, \newline    devServer: \{ \newline       inline: true, \newline       port: 8001 \newline    \}, \newline    module: \{ \newline       rules: {[} \newline          \{ \newline             test: /\textbackslash{}.jsx?\$/, \newline             exclude: /node\_modules/, \newline             loader: 'babel-loader', \newline             query: \{ \newline                presets: {[}'es2015', 'react'{]} \newline             \} \newline          \} \newline       {]} \newline    \}, \newline    plugins:{[} \newline       new HtmlWebpackPlugin(\{ \newline          template: './index.html' \newline       \}) \newline    {]} \newline \}} \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{5.377cm}}{\bf\textcolor{white}{package.json}}  \tn
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{\{ \newline   "name": "reactApp", \newline   "version": "1.0.0", \newline   "description": "First React App", \newline   "main": "index.js", \newline   "scripts": \{ \newline  \newline /{\emph{"test": "echo \textbackslash{}"Error: no test specified\textbackslash{}" \&\& exit 1"  \newline REMOVE THIS AND ADD FOLLOWING 2 LINES }}/  \newline  \newline     "start": "webpack-dev-server -{}-mode development -{}-open -{}-hot", \newline     "build": "webpack -{}-mode production" \newline   \}, \newline   "keywords": {[}{]}, \newline   "author": "KNiGHTblood", \newline   "license": "ISC", \newline   "dependencies": \{ \newline     "react": "\textasciicircum{}16.12.0", \newline     "react-dom": "\textasciicircum{}16.12.0", \newline     "webpack": "\textasciicircum{}4.41.5", \newline     "webpack-cli": "\textasciicircum{}3.3.10", \newline     "webpack-dev-server": "\textasciicircum{}3.10.1" \newline   \}, \newline   "devDependencies": \{ \newline     "babel-core": "\textasciicircum{}6.26.3", \newline     "babel-loader": "\textasciicircum{}8.0.6", \newline     "babel-preset-env": "\textasciicircum{}1.7.0", \newline     "babel-preset-react": "\textasciicircum{}6.24.1", \newline     "html-webpack-plugin": "\textasciicircum{}3.2.0" \newline   \} \newline \}} \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{5.377cm}}{\bf\textcolor{white}{index.html}}  \tn
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{\textless{}!DOCTYPE html\textgreater{} \newline \textless{}html lang = "en"\textgreater{} \newline    \textless{}head\textgreater{} \newline       \textless{}meta charset = "UTF-8"\textgreater{} \newline       \textless{}title\textgreater{}React App\textless{}/title\textgreater{} \newline    \textless{}/head\textgreater{} \newline    \textless{}body\textgreater{} \newline       \textless{}div id = "app"\textgreater{}\textless{}/div\textgreater{} \newline       \textless{}script src = 'index\_bundle.js'\textgreater{}\textless{}/script\textgreater{} \newline    \textless{}/body\textgreater{} \newline \textless{}/html\textgreater{}} \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{5.377cm}}{\bf\textcolor{white}{App.js}}  \tn
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{import React, \{ Component \} from 'react'; \newline class App extends Component\{ \newline    render()\{ \newline       return( \newline          \textless{}div\textgreater{} \newline             \textless{}h1\textgreater{}Hello World\textless{}/h1\textgreater{} \newline          \textless{}/div\textgreater{} \newline       ); \newline    \} \newline \} \newline export default App;} \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{5.377cm}}{\bf\textcolor{white}{main.js}}  \tn
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{import React from 'react'; \newline import ReactDOM from 'react-dom'; \newline import App from './App.js'; \newline  \newline ReactDOM.render(\textless{}App /\textgreater{}, \seqsplit{document.getElementById('app'));}} \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{5.377cm}}{\bf\textcolor{white}{.babelrc}}  \tn
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{\{ \newline    "presets":{[}"env", "react"{]} \newline \}} \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{x{1.69218 cm} x{3.28482 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{Compnents are made with jsx}}  \tn
% Row 0
\SetRowColor{LightBackground}
HTML flips to js Like & `\textless{}div\textgreater{} \{'Hello'.toUpperCase()\} \textless{}/div\textgreater{}` \tn 
% Row Count 2 (+ 2)
% Row 1
\SetRowColor{white}
 & `\textless{}div className="hello-{}-upper"\textgreater{} \{'Hello'.toUpperCase()\} \textless{}/div\textgreater{}` \tn 
% Row Count 5 (+ 3)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}


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

\end{document}