\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{acklikx}
\pdfinfo{
  /Title (javascript.pdf)
  /Creator (Cheatography)
  /Author (acklikx)
  /Subject (Javascript 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}{BDBDBD}
\definecolor{LightBackground}{HTML}{F6F6F6}
\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 Cheat Sheet}}}} \\
    \normalsize{by \textcolor{DarkBackground}{acklikx} via \textcolor{DarkBackground}{\uline{cheatography.com/10745/cs/1308/}}}
\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}acklikx \\
  \uline{cheatography.com/acklikx} \\
  \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 13th May, 2016.\\
   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{1.09494 cm} x{3.88206 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{Event Handlers}}  \tn
% Row 0
\SetRowColor{LightBackground}
onabort & The user aborted loading the page \tn 
% Row Count 2 (+ 2)
% Row 1
\SetRowColor{white}
onblur & The user left the object \tn 
% Row Count 3 (+ 1)
% Row 2
\SetRowColor{LightBackground}
\seqsplit{onchange} & The user changed the object \tn 
% Row Count 4 (+ 1)
% Row 3
\SetRowColor{white}
onclick & The user clicked an object \tn 
% Row Count 5 (+ 1)
% Row 4
\SetRowColor{LightBackground}
onerror & The script encountered an error \tn 
% Row Count 6 (+ 1)
% Row 5
\SetRowColor{white}
onfocus & The user made an object active \tn 
% Row Count 7 (+ 1)
% Row 6
\SetRowColor{LightBackground}
onload & The object finished loading \tn 
% Row Count 8 (+ 1)
% Row 7
\SetRowColor{white}
\seqsplit{onmouseover} & The cursor moved over an object \tn 
% Row Count 10 (+ 2)
% Row 8
\SetRowColor{LightBackground}
\seqsplit{onmouseout} & The cursor moved off an object \tn 
% Row Count 12 (+ 2)
% Row 9
\SetRowColor{white}
\seqsplit{onselect} & The user selected the contents of an object \tn 
% Row Count 14 (+ 2)
% Row 10
\SetRowColor{LightBackground}
\seqsplit{onsubmit} & The user submitted a form \tn 
% Row Count 15 (+ 1)
% Row 11
\SetRowColor{white}
\seqsplit{onunload} & The user left the page \tn 
% Row Count 16 (+ 1)
% Row 12
\SetRowColor{LightBackground}
onmove & The window is moved \tn 
% Row Count 17 (+ 1)
% Row 13
\SetRowColor{white}
\seqsplit{onmousedown} & A mouse button is pressed down \tn 
% Row Count 19 (+ 2)
% Row 14
\SetRowColor{LightBackground}
\seqsplit{onmouseup} & A mouse button is released \tn 
% Row Count 21 (+ 2)
% Row 15
\SetRowColor{white}
\seqsplit{onmousemove} & The mouse moves \tn 
% Row Count 23 (+ 2)
% Row 16
\SetRowColor{LightBackground}
\seqsplit{ondblclick} & A double click of a mouse button \tn 
% Row Count 25 (+ 2)
% Row 17
\SetRowColor{white}
onclick & A single click (down and then up) of a mouse button \tn 
% Row Count 27 (+ 2)
% Row 18
\SetRowColor{LightBackground}
onreset & A reset button is clicked on a form \tn 
% Row Count 29 (+ 2)
% Row 19
\SetRowColor{white}
\seqsplit{onkeydown} & Triggered when a key is pressed down \tn 
% Row Count 31 (+ 2)
\end{tabularx}
\par\addvspace{1.3em}

\vfill
\columnbreak
\begin{tabularx}{5.377cm}{x{1.09494 cm} x{3.88206 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{Event Handlers (cont)}}  \tn
% Row 20
\SetRowColor{LightBackground}
onkeyup & Triggered when a key is released \tn 
% Row Count 2 (+ 2)
% Row 21
\SetRowColor{white}
\seqsplit{onkeypress} & Triggered when a key is pressed and then released \tn 
% Row Count 4 (+ 2)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{x{0.89586 cm} x{4.08114 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{Value Types}}  \tn
% Row 0
\SetRowColor{LightBackground}
Number & Any numeric value \tn 
% Row Count 1 (+ 1)
% Row 1
\SetRowColor{white}
String & Characters inside quote marks \tn 
% Row Count 2 (+ 1)
% Row 2
\SetRowColor{LightBackground}
\seqsplit{Boolean} & True or False \tn 
% Row Count 3 (+ 1)
% Row 3
\SetRowColor{white}
Null & Empty and meaningless \tn 
% Row Count 4 (+ 1)
% Row 4
\SetRowColor{LightBackground}
Object & Any value associated with the object \tn 
% Row Count 6 (+ 2)
% Row 5
\SetRowColor{white}
\seqsplit{Function} & Value returned by a function \tn 
% Row Count 8 (+ 2)
\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}{Operators}}  \tn
% Row 0
\SetRowColor{LightBackground}
x + y (numeric) & Adds x and y together \tn 
% Row Count 2 (+ 2)
% Row 1
\SetRowColor{white}
x + y (string) & Concatinates x and y together \tn 
% Row Count 4 (+ 2)
% Row 2
\SetRowColor{LightBackground}
x - y & Subtracts y from x \tn 
% Row Count 5 (+ 1)
% Row 3
\SetRowColor{white}
x * y & Multiplies x and y together \tn 
% Row Count 6 (+ 1)
% Row 4
\SetRowColor{LightBackground}
x / y & Divides x by y \tn 
% Row Count 7 (+ 1)
% Row 5
\SetRowColor{white}
x \% y & Modulus: The remainder when x is divided by y \tn 
% Row Count 9 (+ 2)
% Row 6
\SetRowColor{LightBackground}
x++, ++x & Adds one to x \tn 
% Row Count 10 (+ 1)
% Row 7
\SetRowColor{white}
x-{}-, -{}-x & Subtracts one from x \tn 
% Row Count 11 (+ 1)
% Row 8
\SetRowColor{LightBackground}
-x & Reverses the sign on x \tn 
% Row Count 12 (+ 1)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{p{0.9954 cm} x{3.9816 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{Assignments}}  \tn
% Row 0
\SetRowColor{LightBackground}
x = y & Sets x to the value of y \tn 
% Row Count 1 (+ 1)
% Row 1
\SetRowColor{white}
x += y & Same as x = x + y \tn 
% Row Count 2 (+ 1)
% Row 2
\SetRowColor{LightBackground}
x -= y & Same as x = x - y \tn 
% Row Count 3 (+ 1)
% Row 3
\SetRowColor{white}
x *= y & Same as x = x * y \tn 
% Row Count 4 (+ 1)
% Row 4
\SetRowColor{LightBackground}
x /= y & Same as x = x / y \tn 
% Row Count 5 (+ 1)
% Row 5
\SetRowColor{white}
x \%= y & Same as x = x \% y \tn 
% Row Count 6 (+ 1)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{p{0.74655 cm} x{4.23045 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{Comparisons}}  \tn
% Row 0
\SetRowColor{LightBackground}
x == y & Returns true if x and y are equal \tn 
% Row Count 1 (+ 1)
% Row 1
\SetRowColor{white}
x === y & Returns true if x and y are identical \tn 
% Row Count 3 (+ 2)
% Row 2
\SetRowColor{LightBackground}
x != y & Returns true if x and y are not equal \tn 
% Row Count 5 (+ 2)
% Row 3
\SetRowColor{white}
x !== y & Returns true if x and y are not identical \tn 
% Row Count 7 (+ 2)
% Row 4
\SetRowColor{LightBackground}
x \textgreater{} y & Returns true if x is greater than y \tn 
% Row Count 9 (+ 2)
% Row 5
\SetRowColor{white}
x \textgreater{}= y & Returns true if x is greater than or equal to y \tn 
% Row Count 11 (+ 2)
% Row 6
\SetRowColor{LightBackground}
x \textless{} y & Returns true if x is less than y \tn 
% Row Count 12 (+ 1)
% Row 7
\SetRowColor{white}
x \textless{}= y & Returns true if x is less than or equal to y \tn 
% Row Count 14 (+ 2)
% Row 8
\SetRowColor{LightBackground}
x \&\& y & Returns true if both x and y are true \tn 
% Row Count 16 (+ 2)
% Row 9
\SetRowColor{white}
x || y & Returns true if either x or y are true \tn 
% Row Count 18 (+ 2)
% Row 10
\SetRowColor{LightBackground}
!x & Returns true if x is false \tn 
% Row Count 19 (+ 1)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{x{1.44333 cm} x{3.53367 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{Adding to an array}}  \tn
% Row 0
\SetRowColor{LightBackground}
.length property & Adds one value to the end of an array \tn 
% Row Count 2 (+ 2)
% Row 1
\SetRowColor{white}
push() & Adds one or more items to the end of an array \tn 
% Row Count 4 (+ 2)
% Row 2
\SetRowColor{LightBackground}
unshift() & Adds one or more items to the beginning of an array. \tn 
% Row Count 6 (+ 2)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{p{0.79632 cm} x{4.18068 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{Remove item from an array}}  \tn
% Row 0
\SetRowColor{LightBackground}
pop() & Removes the last item from the array \tn 
% Row Count 2 (+ 2)
% Row 1
\SetRowColor{white}
\seqsplit{shift()} & Removes the first item from the array \tn 
% Row Count 4 (+ 2)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{x{1.89126 cm} x{3.08574 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{Misc}}  \tn
% Row 0
\SetRowColor{LightBackground}
parseInt() & Takes a value and tries to convert it to an integer \tn 
% Row Count 3 (+ 3)
% Row 1
\SetRowColor{white}
isNaN() & Returns true if something is not a number. \tn 
% Row Count 5 (+ 2)
% Row 2
\SetRowColor{LightBackground}
setTimeout() & Specify that am action should occur on a particular schedule \tn 
% Row Count 8 (+ 3)
% Row 3
\SetRowColor{white}
Math.floor & Rounds a number down \tn 
% Row Count 9 (+ 1)
% Row 4
\SetRowColor{LightBackground}
Math.random & Generaters a random number between 0 and 1 \tn 
% Row Count 11 (+ 2)
% Row 5
\SetRowColor{white}
\mymulticolumn{2}{x{5.377cm}}{getElementsByTagName()} \tn 
% Row Count 12 (+ 1)
% Row 6
\SetRowColor{LightBackground}
\mymulticolumn{2}{x{5.377cm}}{getElementById()} \tn 
% Row Count 13 (+ 1)
% Row 7
\SetRowColor{white}
\mymulticolumn{2}{x{5.377cm}}{getElementsByClassName()} \tn 
% Row Count 14 (+ 1)
% Row 8
\SetRowColor{LightBackground}
\seqsplit{element.innerHTML} & returns all the HTML between the opening and closing tags \tn 
% Row Count 17 (+ 3)
% Row 9
\SetRowColor{white}
\seqsplit{element.nodeType} & property, returns the number of the node type \tn 
% Row Count 19 (+ 2)
% Row 10
\SetRowColor{LightBackground}
\seqsplit{element.childNodes} & A node list of child nodes that are indexed numerically, and appear in source order. \tn 
% Row Count 23 (+ 4)
% Row 11
\SetRowColor{white}
\seqsplit{element.childNodes.length} & Returns the number of child nodes of the element \tn 
% Row Count 25 (+ 2)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}


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

\end{document}