\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{tlbp05scr}
\pdfinfo{
  /Title (operation-totenham.pdf)
  /Creator (Cheatography)
  /Author (tlbp05scr)
  /Subject (Operation Totenham 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}{A3A3A3}
\definecolor{LightBackground}{HTML}{F3F3F3}
\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{Operation Totenham Cheat Sheet}}}} \\
    \normalsize{by \textcolor{DarkBackground}{tlbp05scr} via \textcolor{DarkBackground}{\uline{cheatography.com/188707/cs/39355/}}}
\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}tlbp05scr \\
  \uline{cheatography.com/tlbp05scr} \\
  \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 26th June, 2023.\\
   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}{React}}  \tn
% Row 0
\SetRowColor{LightBackground}
{\bf{React}} & Client-Side SPA Javascript Library \tn 
% Row Count 2 (+ 2)
% Row 1
\SetRowColor{white}
{\bf{JSX}} & not supported by navigators, uses {\bf{Babel}}.It Allows HTML to be asiggned to a Javascript (JSX) variable \tn 
% Row Count 6 (+ 4)
% Row 2
\SetRowColor{LightBackground}
{\bf{Components}} & used to split one big chunk of UI Code into multiple small "components". Components can be reused many times. \tn 
% Row Count 10 (+ 4)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{5.377cm}}{\bf\textcolor{white}{Components: Functional}}  \tn
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{`\{\{lang-jsx\}\} \newline const CompName = (props \textless{}= {\bf{/ this is a table of props /}}) =\textgreater{} \{ \newline {\bf{/{\emph{ Partie Logique }}/}} \newline var {\emph{name}} = "ahmed"; \newline return( \newline     // Code JSX \newline     \textless{}h1\textgreater{} 2 Quid mr friend {\emph{\{name\}}}\textless{}/h1\textgreater{} \newline )\} \newline `} \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{x{0.9954 cm} x{3.9816 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{ES6 Iterable Methods}}  \tn
% Row 0
\SetRowColor{LightBackground}
{\bf{map}} & array\_name.map(({\bf{value}},{\bf{index}}) =\textgreater{} \{ \{\{nl\}\} console.log("current value is:" + value\{\{nl\}\} \}) \tn 
% Row Count 4 (+ 4)
% Row 1
\SetRowColor{white}
{\bf{filter}} & array\_name.filter(({\bf{value}},{\bf{index}}) =\textgreater{} \{ \{\{nl\}\} return value.age \textgreater{}= 18 \{\{nl\}\} \}) \tn 
% Row Count 7 (+ 3)
% Row 2
\SetRowColor{LightBackground}
{\bf{find}} & array\_name.find(({\bf{value}},{\bf{index}}) =\textgreater{} \{ \{\{nl\}\} return value.user\_id === 101 \{\{nl\}\} \}) \tn 
% Row Count 10 (+ 3)
% Row 3
\SetRowColor{white}
{\bf{reduce}} & array\_name.reduce(({\bf{accumulator}},{\bf{value}},{\bf{index}}) =\textgreater{} \{ \{\{nl\}\} return accumulator + value; \{\{nl\}\} \},0 \textless{}= {\bf{/{\emph{ Valeur\_Initiale }}/}}) \tn 
% Row Count 15 (+ 5)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{x{1.59264 cm} x{3.38436 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{Import/Export}}  \tn
% Row 0
\SetRowColor{LightBackground}
if only 1 component & {\bf{export}} {\bf{default}} Component; \tn 
% Row Count 2 (+ 2)
% Row 1
\SetRowColor{white}
if many & {\bf{export}} \{ Comp1, Comp2...\} \tn 
% Row Count 4 (+ 2)
% Row 2
\SetRowColor{LightBackground}
imp: if only 1 comp & {\bf{import}} comp {\bf{from}} "./comp.js" \tn 
% Row Count 6 (+ 2)
% Row 3
\SetRowColor{white}
imp: if many & {\bf{import}} \{ comp1, comp2 \} \{\{nl\}\}{\bf{from}} "./comps.js" \tn 
% Row Count 9 (+ 3)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{x{1.9908 cm} x{2.9862 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{JSX: Syntax General}}  \tn
% Row 0
\SetRowColor{LightBackground}
{\bf{assigning}} & `\{\{lang-jsx\}\} var title = \textless{}h1\textgreater{}open na noor\textless{}/h1\textgreater{}` \tn 
% Row Count 2 (+ 2)
% Row 1
\SetRowColor{white}
{\bf{with variables}} & `\{\{lang-jsx\}\} var title = \textless{}h1\textgreater{}my name is \{ user.name \}\textless{}/h1\textgreater{}` \tn 
% Row Count 5 (+ 3)
% Row 2
\SetRowColor{LightBackground}
{\bf{embdedded balises/comp.}} & `\{\{lang-jsx\}\} var header = \textless{}div\textgreater{}\{\{nl\}\} \textless{}h1\textgreater{}Welcome \{name\}\textless{}/h1\textgreater{}\{\{nl\}\} \textless{}p\textgreater{}copyright\textless{}/p\textgreater{}\{\{nl\}\} \textless{}/div\textgreater{}` \tn 
% Row Count 10 (+ 5)
% Row 3
\SetRowColor{white}
{\bf{styling}} & `\{\{lang-jsx\}\} var btn = \textless{}button style=\{\{"textColor:"red"\}\}\textgreater{}\{\{nl\}\}click here\{\{nl\}\}\textless{}/button\textgreater{}` \tn 
% Row Count 14 (+ 4)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}


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

\end{document}