\documentclass[10pt,a4paper]{article}

% Packages
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\usepackage{multicol}           % Allows multicols in tables
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\usepackage{tabulary}           % Used in header and footer
\usepackage{hhline}             % Border under tables
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\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{Matt\_Henton}
\pdfinfo{
  /Title (mcad-lecture-1-javascript-101.pdf)
  /Creator (Cheatography)
  /Author (Matt\_Henton)
  /Subject (MCAD Lecture 1 - Javascript 101 Cheat Sheet)
}

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% This two commands together give roughly
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% Commands
\newcommand{\SetRowColor}[1]{\noalign{\gdef\RowColorName{#1}}\rowcolor{\RowColorName}} % Shortcut for row colour
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% 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}}
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\columnbreak
\begin{tabulary}{11cm}{L}
    \vspace{-2pt}\large{\bf{\textcolor{DarkBackground}{\textrm{MCAD Lecture 1 - Javascript 101 Cheat Sheet}}}} \\
    \normalsize{by \textcolor{DarkBackground}{Matt\_Henton} via \textcolor{DarkBackground}{\uline{cheatography.com/32757/cs/10142/}}}
\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}Matt\_Henton \\
  \uline{cheatography.com/matt-henton} \\
  \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 27th January, 2017.\\
   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}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{5.377cm}}{\bf\textcolor{white}{What is Javascript?:}}  \tn
\SetRowColor{white}
\mymulticolumn{1}{x{5.377cm}}{A scripting language \newline % Row Count 1 (+ 1)
Used to implement logic into web and mobile apps \newline % Row Count 2 (+ 1)
Syntax similar to C++% Row Count 3 (+ 1)
} \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}{Data Types:}}  \tn
\SetRowColor{white}
\mymulticolumn{1}{x{5.377cm}}{- Boolean \newline % Row Count 1 (+ 1)
- Null \newline % Row Count 2 (+ 1)
- Undefined \newline % Row Count 3 (+ 1)
- Number \newline % Row Count 4 (+ 1)
- String \newline % Row Count 5 (+ 1)
- Symbol% Row Count 6 (+ 1)
} \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{Use the 'Var' keyword to declare  \newline  \newline ` var x = 10; ` \newline  \newline Data type depends on what value is assigned to it \newline Use ` typeof(variable name); `to output the data type}  \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
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\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{5.377cm}}{\bf\textcolor{white}{Variables Declaration}}  \tn
\SetRowColor{white}
\mymulticolumn{1}{x{5.377cm}}{` var x; ` - undefined \newline % Row Count 1 (+ 1)
` var x = 10; ` - number \newline % Row Count 2 (+ 1)
` x = "Hello World"; ` - string% Row Count 3 (+ 1)
} \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
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\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{5.377cm}}{\bf\textcolor{white}{Text Output}}  \tn
\SetRowColor{white}
\mymulticolumn{1}{x{5.377cm}}{` console.log("Hello World");` - outputs text to the console \newline % Row Count 2 (+ 2)
` console.log("Hello World" + someVariable + "and Goodbye");` - can concentrate output with the '+' operator% Row Count 5 (+ 3)
} \tn 
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\mymulticolumn{1}{x{5.377cm}}{\bf\textcolor{white}{If Statements}}  \tn
\SetRowColor{white}
\mymulticolumn{1}{x{5.377cm}}{`if (x \textless{} 10)` \newline % Row Count 1 (+ 1)
`\{` \newline % Row Count 2 (+ 1)
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`\}` \newline % Row Count 4 (+ 1)
`else` \newline % Row Count 5 (+ 1)
`\{` \newline % Row Count 6 (+ 1)
    ~ `console.log('Not less than 10");` \newline % Row Count 7 (+ 1)
`\}`% Row Count 8 (+ 1)
} \tn 
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\mymulticolumn{1}{x{5.377cm}}{\bf\textcolor{white}{Switch Statements}}  \tn
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`\{` \newline % Row Count 2 (+ 1)
    ~ `case 4:` \newline % Row Count 3 (+ 1)
                    \seqsplit{~~~~~~~~~~~~~~~~`console.log("Hello");`} \newline % Row Count 6 (+ 3)
                    ~~~~~~~~~~~~~~~~`break;` \newline % Row Count 9 (+ 3)
     ~`case 5:` \newline % Row Count 10 (+ 1)
                    \seqsplit{~~~~~~~~~~~~~~~~`console.log("Goodbye");`} \newline % Row Count 13 (+ 3)
                    ~~~~~~~~~~~~~~~~`break;` \newline % Row Count 16 (+ 3)
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                    \seqsplit{~~~~~~~~~~~~~~~~`console.log(someVariable);`} \newline % Row Count 20 (+ 3)
                   ~~~~~~~~~~~~~~~~ `break;` \newline % Row Count 23 (+ 3)
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`\{` \newline % Row Count 2 (+ 1)
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`\{` \newline % Row Count 2 (+ 1)
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\mymulticolumn{1}{x{5.377cm}}{`do` \newline % Row Count 1 (+ 1)
`\{` \newline % Row Count 2 (+ 1)
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     ~`i++;` \newline % Row Count 4 (+ 1)
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`while (i \textless{} 10);`% Row Count 6 (+ 1)
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} \tn 
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\begin{tabularx}{5.377cm}{X}
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\mymulticolumn{1}{x{5.377cm}}{\bf\textcolor{white}{Functions}}  \tn
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\mymulticolumn{1}{x{5.377cm}}{function functionName (arguments); \newline % Row Count 1 (+ 1)
`function Multiplier (v1, v2)` \newline % Row Count 2 (+ 1)
`\{` \newline % Row Count 3 (+ 1)
     ~`console.output (v1 * v2);` \newline % Row Count 4 (+ 1)
`\}` \newline % Row Count 5 (+ 1)
No return type% Row Count 6 (+ 1)
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\begin{tabularx}{5.377cm}{X}
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\mymulticolumn{1}{x{5.377cm}}{\bf\textcolor{white}{Arrays}}  \tn
\SetRowColor{white}
\mymulticolumn{1}{x{5.377cm}}{Javascript arrays can contain a mix of different data types \newline % Row Count 2 (+ 2)
Can access and assign values to elements that in the array yet \newline % Row Count 4 (+ 2)
`var oscillators {[}"sine", "saw', "square"{]};`% Row Count 6 (+ 2)
} \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}


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

\end{document}