\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{batdams}
\pdfinfo{
  /Title (javascript-poo.pdf)
  /Creator (Cheatography)
  /Author (batdams)
  /Subject (JavaScript POO Cheat Sheet)
}

% Lengths and widths
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\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{JavaScript POO Cheat Sheet}}}} \\
    \normalsize{by \textcolor{DarkBackground}{batdams} via \textcolor{DarkBackground}{\uline{cheatography.com/202369/cs/42955/}}}
\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}batdams \\
  \uline{cheatography.com/batdams} \\
  \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 5th April, 2024.\\
   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{4.24 cm} x{3.76 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{8.4cm}}{\bf\textcolor{white}{instance d'un objet}}  \tn
% Row 0
\SetRowColor{LightBackground}
let myObject = new Object(); & appel du constructor \tn 
% Row Count 2 (+ 2)
% Row 1
\SetRowColor{white}
let myObject = \{/{\emph{definiton des propriétés}}/\} & syntaxe littérale \tn 
% Row Count 5 (+ 3)
% Row 2
\SetRowColor{LightBackground}
let myObject = new Object;\{\{nl\}\} myObject = \{\{\{nl\}\}     brand: new String('Brand'),     type: 'modèle',     ram: new Number(4),     price: 500,\{\{nl\}\}      upPrice: function(value) \{\{\{nl\}\}         return this.price += value;     \} \} & Exemple création d'un objet Object \tn 
% Row Count 17 (+ 12)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{x{3.84 cm} x{4.16 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{8.4cm}}{\bf\textcolor{white}{Méthodes statiques}}  \tn
% Row 0
\SetRowColor{LightBackground}
\seqsplit{console.log(Object.keys(monObjet));} & renvoie les clés des propriétés définies \tn 
% Row Count 3 (+ 3)
% Row 1
\SetRowColor{white}
\seqsplit{console.log(Object.values(monObjet));} & renvoie les valeurs des propriétés définies \tn 
% Row Count 6 (+ 3)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{x{4 cm} x{4 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{8.4cm}}{\bf\textcolor{white}{Méthodes d'instances}}  \tn
% Row 0
\SetRowColor{LightBackground}
\seqsplit{console.log(monObjet.valueOf());} & renvoie la valeur primitive de l'objet (l'objet même) \tn 
% Row Count 3 (+ 3)
% Row 1
\SetRowColor{white}
\seqsplit{console.log(monObjet.hasOwnProperty("nom"));} & renvoie un booléen si l'objet a la propriété passée comme argument. \tn 
% Row Count 7 (+ 4)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{x{4 cm} x{4 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{8.4cm}}{\bf\textcolor{white}{Création de propriétés via prototype}}  \tn
% Row 0
\SetRowColor{LightBackground}
\seqsplit{Object.prototype.message} = "Hello World!"; & définition d'une propriété définie sur une valeur \tn 
% Row Count 3 (+ 3)
% Row 1
\SetRowColor{white}
\seqsplit{Object.prototype.aff} = function() \{     console.log("C'est un objet !"); \} & définition d'une méthode \tn 
% Row Count 7 (+ 4)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{x{4 cm} x{4 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{8.4cm}}{\bf\textcolor{white}{Utilisation de "this"}}  \tn
% Row 0
\SetRowColor{LightBackground}
let test = new Object("Hello");\{\{nl\}\}  \seqsplit{Object.prototype.checkString} = function() \{\{\{nl\}\}     if (typeof this.valueOf() === 'string') \{\{\{nl\}\}         return "vrai";     \} else \{         return "faux";     \} \}\{\{nl\}\}  \seqsplit{console.log(test.checkString());} & // Cela retournera "vrai" \tn 
% Row Count 13 (+ 13)
% Row 1
\SetRowColor{white}
let myObject2 = \{\{\{nl\}\}     type: "outil",     matiere: "acier",\{\{nl\}\}      affObject: function() \{\{\{nl\}\}         console.log("type : " + this.type + ". matière : " + this.matiere);     \} \}\{\{nl\}\} \seqsplit{myObject2.affObject();} & // affiche "type : outil. matière : acier" \tn 
% Row Count 24 (+ 11)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{8.4cm}}{\bf\textcolor{white}{Définition d'une classe}}  \tn
% Row 0
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{8.4cm}}{class Ordinateur \{\{\{nl\}\}     //déclaration des propriétés d'instance \{\{nl\}\}      ~~~marque;\{\{nl\}\}     ~~~ram;\{\{nl\}\}     ~~~stockage;\{\{nl\}\}      //définition de propriétés statiques\{\{nl\}\}            ~~~static OBJETS\_PRIS\_EN\_CHARGE = "ordinateurs";\{\{nl\}\}          //définition de propriétés de classe\{\{nl\}\}          ~~~type = "laptop";\{\{nl\}\}     ~~~clavier = "azerty";\{\{nl\}\}          //définition du constructeur\{\{nl\}\}          ~~~constructor(marque, ram, stockage) \{\{\{nl\}\}     ~~~this.\_marque = marque;\{\{nl\}\}     ~~~this.\_ram = ram;\{\{nl\}\}     ~~~\}\{\{nl\}\}          // def de getters\{\{\{nl\}\}     ~~~get marque() \{\{\{nl\}\}     ~~~return this.\_marque;\{\{nl\}\}     ~~~\}\{\{nl\}\}          // def de setters\{\{\{nl\}\}         ~~~set marque(value) \{\{\{nl\}\}             ~~~this.\_marque = value;\{\{nl\}\}             ~~~\}\{\{nl\}\}     //définition de méthodes statiques\{\{nl\}\}          ~~~static definition() \{\{\{nl\}\}     ~~~console.log("Les ordinateurs sont des machines automatisées permettant le traitement d'informations.");\{\{nl\}\}     ~~~\}\{\{nl\}\}          //définition de méthodes d'instance\{\{nl\}\}          ~~~addRam(value) \{\{\{nl\}\}     ~~~return this.ram += value;\{\{nl\}\}     ~~~\}\{\{nl\}\}     \}\{\{nl\}\}} \tn 
% Row Count 31 (+ 31)
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}


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

\end{document}