\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{binca}
\pdfinfo{
  /Title (javascript.pdf)
  /Creator (Cheatography)
  /Author (binca)
  /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}{3AA32A}
\definecolor{LightBackground}{HTML}{F2F9F1}
\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}{binca} via \textcolor{DarkBackground}{\uline{cheatography.com/44948/cs/13428/}}}
\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}binca \\
  \uline{cheatography.com/binca} \\
  \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 9th November, 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*}{2}

\begin{tabularx}{8.4cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{8.4cm}}{\bf\textcolor{white}{About}}  \tn
% Row 0
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{8.4cm}}{Most common client-side scripting language in use.  Originally designed by Netscape in 95 and called LiveScript.} \tn 
% Row Count 3 (+ 3)
% Row 1
\SetRowColor{white}
\mymulticolumn{1}{x{8.4cm}}{Use for for reading and understanding scripts from the target systems.} \tn 
% Row Count 5 (+ 2)
% Row 2
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{8.4cm}}{Can be used to write attacks against target systems.} \tn 
% Row Count 7 (+ 2)
% Row 3
\SetRowColor{white}
\mymulticolumn{1}{x{8.4cm}}{In web pages is can be inline with HTML via {\bf{\textless{}script\textgreater{}}} tags, as a part of an HTML item {\bf{\textless{}img src="link" onload="javascript;"\textgreater{}}}, or loaded from an external document {\bf{\textless{}script \seqsplit{src=http://evil.agent/bad}.js\textgreater{}}}} \tn 
% Row Count 12 (+ 5)
% Row 4
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{8.4cm}}{It is an object-oriented language.} \tn 
% Row Count 13 (+ 1)
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{x{1.6 cm} x{6.4 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{8.4cm}}{\bf\textcolor{white}{Control Statements}}  \tn
% Row 0
\SetRowColor{LightBackground}
while loop & Runs a block of code until a condition is met \tn 
% Row Count 2 (+ 2)
% Row 1
\SetRowColor{white}
for loop & Runs for a set number of times \tn 
% Row Count 3 (+ 1)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{8.4cm}}{\bf\textcolor{white}{Variables}}  \tn
% Row 0
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{8.4cm}}{Any type of data can be assigned to a variable without concern.} \tn 
% Row Count 2 (+ 2)
% Row 1
\SetRowColor{white}
\mymulticolumn{1}{x{8.4cm}}{Declaration: {\bf{var x;}}} \tn 
% Row Count 3 (+ 1)
% Row 2
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{8.4cm}}{Variables can be assigned at declaration or later. {\bf{var x="string";}} or {\bf{x="string";}}} \tn 
% Row Count 5 (+ 2)
% Row 3
\SetRowColor{white}
\mymulticolumn{1}{x{8.4cm}}{If a variable is re-declared after a value is assigned to it, the original value is still assigned.} \tn 
% Row Count 7 (+ 2)
% Row 4
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{8.4cm}}{{\bf{Global variables}} are those declared outside of functions and are accessible everywhere.} \tn 
% Row Count 9 (+ 2)
% Row 5
\SetRowColor{white}
\mymulticolumn{1}{x{8.4cm}}{{\bf{Instance variables}} are those declared within a function and are exclusive to the function.} \tn 
% Row Count 11 (+ 2)
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{8.4cm}}{\bf\textcolor{white}{Functions}}  \tn
% Row 0
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{8.4cm}}{Functions can be declared anywhere within the page, but it is safest to declare in the \textless{}HEAD\textgreater{} to ensure they are loaded before being called.} \tn 
% Row Count 3 (+ 3)
% Row 1
\SetRowColor{white}
\mymulticolumn{1}{x{8.4cm}}{{\bf{function name(var1, var2) \{ some code \}}}} \tn 
% Row Count 4 (+ 1)
% Row 2
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{8.4cm}}{To return data from a function use {\bf{return var;}} statement within the function.} \tn 
% Row Count 6 (+ 2)
% Row 3
\SetRowColor{white}
\mymulticolumn{1}{x{8.4cm}}{Call a function using {\bf{function\_name()}}} \tn 
% Row Count 7 (+ 1)
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{x{2.32 cm} x{5.68 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{8.4cm}}{\bf\textcolor{white}{Events}}  \tn
% Row 0
\SetRowColor{LightBackground}
{\bf{onload}} & Page of item is finished loading \tn 
% Row Count 2 (+ 2)
% Row 1
\SetRowColor{white}
{\bf{onunload}} & User leaves the page the script is on \tn 
% Row Count 4 (+ 2)
% Row 2
\SetRowColor{LightBackground}
{\bf{onerror}} & An error occurs loading page or item \tn 
% Row Count 6 (+ 2)
% Row 3
\SetRowColor{white}
{\bf{onclick}} & Item is clicked on with mouse \tn 
% Row Count 8 (+ 2)
% Row 4
\SetRowColor{LightBackground}
{\bf{onsubmit}} & The form is submitted \tn 
% Row Count 10 (+ 2)
% Row 5
\SetRowColor{white}
{\bf{onfocus}} & The item receives focus \tn 
% Row Count 11 (+ 1)
% Row 6
\SetRowColor{LightBackground}
{\bf{onblur}} & The item loses focus \tn 
% Row Count 12 (+ 1)
% Row 7
\SetRowColor{white}
{\bf{onchange}} & Content of field changes \tn 
% Row Count 14 (+ 2)
% Row 8
\SetRowColor{LightBackground}
{\bf{onmouseover}} & The mouse is hovering over item \tn 
% Row Count 16 (+ 2)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\SetRowColor{LightBackground}
\mymulticolumn{2}{x{8.4cm}}{Every item in a page has a series of associated events.  The event calls a function.}  \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{x{3.12 cm} x{4.88 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{8.4cm}}{\bf\textcolor{white}{Events within Attacks}}  \tn
% Row 0
\SetRowColor{LightBackground}
{\bf{onload}} & Change content of page after it loads \tn 
% Row Count 2 (+ 2)
% Row 1
\SetRowColor{white}
{\bf{onunload}} & Launch pop-under window to retain control of a zombie browser \tn 
% Row Count 5 (+ 3)
% Row 2
\SetRowColor{LightBackground}
{\bf{onsubmit}} & Change form values so the transaction is one of the attacker's choosing. \tn 
% Row Count 8 (+ 3)
% Row 3
\SetRowColor{white}
{\bf{onfocus}} & Send HTTP request to attacker's web server to reveal which controls the user is selecting. \tn 
% Row Count 12 (+ 4)
% Row 4
\SetRowColor{LightBackground}
{\bf{onerror}} & Used within web scanners injected via XSS to determine a resource does not exist.  Usefule when port scanning a network using JavaScript. \tn 
% Row Count 18 (+ 6)
% Row 5
\SetRowColor{white}
{\bf{onclick}} & Change where a link points without the user knowing. \tn 
% Row Count 21 (+ 3)
% Row 6
\SetRowColor{LightBackground}
{\bf{onmouseover}}\{\{nobreak\}\} & Track the movement of the mouse across a page. \tn 
% Row Count 23 (+ 2)
% Row 7
\SetRowColor{white}
{\bf{onblur}} & Send the contents of a form field to an attacker. \tn 
% Row Count 26 (+ 3)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{8.4cm}}{\bf\textcolor{white}{Document Object Model (DOM)}}  \tn
% Row 0
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{8.4cm}}{Provides standard interface tot he document allowing scripts to dynamically access and update content, structure, or style of the page. \{\{nl\}\} Doc referenced is either HTML or XML} \tn 
% Row Count 4 (+ 4)
% Row 1
\SetRowColor{white}
\mymulticolumn{1}{x{8.4cm}}{DOM provides native objects to access various items of interest: \{\{nl\}\}{\bf{document.forms{[}0{]}}} refers to 1st form on page \{\{nl\}\}{\bf{document.write("string")}} write string to the page \{\{nl\}\}{\bf{document.write(document.cookie)}} will write value of the page's cookies to the page} \tn 
% Row Count 10 (+ 6)
% Row 2
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{8.4cm}}{Form object is used to access a specific form \{\{nl\}\} {\bf{form.action={[}URL{]}}} sets the forms action to the URL allowing for redirecting the browser to another page \{\{nl\}\} {\bf{form.submit()}} will submit form} \tn 
% Row Count 15 (+ 5)
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{8.4cm}}{\bf\textcolor{white}{DOM Nodes}}  \tn
% Row 0
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{8.4cm}}{Viewed as a tree the HTML tag is the root and has two children {\bf{\textless{}HEAD\textgreater{}}} and {\bf{\textless{}BODY\textgreater{}}}.  Each other them have children and so forth.} \tn 
% Row Count 3 (+ 3)
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{8.4cm}}{\bf\textcolor{white}{Object Methods and Properties}}  \tn
% Row 0
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{8.4cm}}{Objects have to be initialized instead of being assigned to a variable; {\bf{var string=new String();}}} \tn 
% Row Count 2 (+ 2)
% Row 1
\SetRowColor{white}
\mymulticolumn{1}{x{8.4cm}}{Objects have properties, attributes of the object, and methods, which are actions performed on the object.} \tn 
% Row Count 5 (+ 3)
% Row 2
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{8.4cm}}{Devs can create their own objects.} \tn 
% Row Count 6 (+ 1)
% Row 3
\SetRowColor{white}
\mymulticolumn{1}{x{8.4cm}}{When referring to a property of an object, we use the format {\bf{object.property}}, such as {\bf{document.referrer}}.} \tn 
% Row Count 9 (+ 3)
% Row 4
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{8.4cm}}{Calling a method is similar but also requires {\bf{( )}} with values determined by the method.} \tn 
% Row Count 11 (+ 2)
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{x{1.672 cm} x{2.964 cm} x{2.964 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{3}{x{8.4cm}}{\bf\textcolor{white}{Objects and Associated Properties and Methods}}  \tn
% Row 0
\SetRowColor{LightBackground}
Object Type & Method & Property \tn 
% Row Count 2 (+ 2)
% Row 1
\SetRowColor{white}
{\bf{String}} & {\bf{split()}} parses the string & length returns size \tn 
% Row Count 4 (+ 2)
% Row 2
\SetRowColor{LightBackground}
{\bf{Date}} & {\bf{getTime()}} returns current time \{\{nl\}\}{\bf{getMonth()}} returns current month &  \tn 
% Row Count 10 (+ 6)
% Row 3
\SetRowColor{white}
{\bf{Array}} & {\bf{join()}} joins the elements in the array \{\{nl\}\}{\bf{sort()}} sorts the array &  \tn 
% Row Count 15 (+ 5)
% Row 4
\SetRowColor{LightBackground}
{\bf{Window}} & {\bf{open()}} creates a new browser window\{\{nl\}\}{\bf{alert()}} pops up a dialog box &  \tn 
% Row Count 21 (+ 6)
% Row 5
\SetRowColor{white}
{\bf{Document}}\{\{nobreak\}\} & {\bf{write()}} writes content to the page \{\{nl\}\} {\bf{referrer()}} returns referring URL &  \tn 
% Row Count 27 (+ 6)
% Row 6
\SetRowColor{LightBackground}
{\bf{Location}} & {\bf{reload()}} reloads doc & {\bf{port()}} returns the port of the current page \tn 
% Row Count 31 (+ 4)
\end{tabularx}
\par\addvspace{1.3em}

\vfill
\columnbreak
\begin{tabularx}{8.4cm}{x{1.672 cm} x{2.964 cm} x{2.964 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{3}{x{8.4cm}}{\bf\textcolor{white}{Objects and Associated Properties and Methods (cont)}}  \tn
% Row 7
\SetRowColor{LightBackground}
{\bf{History}} & {\bf{back()}} is the same as the back button & Length returns history item count \tn 
% Row Count 3 (+ 3)
\hhline{>{\arrayrulecolor{DarkBackground}}---}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{8.4cm}}{\bf\textcolor{white}{Selecting and Changing Content}}  \tn
% Row 0
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{8.4cm}}{Scripts can find specific content by walking the DOM.} \tn 
% Row Count 2 (+ 2)
% Row 1
\SetRowColor{white}
\mymulticolumn{1}{x{8.4cm}}{The script can read the item's attributes and associated items such as text.} \tn 
% Row Count 4 (+ 2)
% Row 2
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{8.4cm}}{The script can then rewrite the item.} \tn 
% Row Count 5 (+ 1)
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{8.4cm}}{function counttags(tag) \{ \newline   count = \seqsplit{document.getElementsByTagName(tag).length} \newline   return count \newline \}}  \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{8.4cm}}{\bf\textcolor{white}{Interacting with Cookies}}  \tn
% Row 0
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{8.4cm}}{{\bf{strCookie=document.cookie}} returns only the name=value pairs} \tn 
% Row Count 2 (+ 2)
% Row 1
\SetRowColor{white}
\mymulticolumn{1}{x{8.4cm}}{Parsing the cookie takes a little work.\{\{nl\}\} 1. Parse to split each name=value pair. {\bf{var \seqsplit{arrValues=document.cookie}.split(';');}} \{\{nl\}\} 2. Loop through each pair and split on the {\bf{=}}.  (4:22)} \tn 
% Row Count 6 (+ 4)
% Row 2
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{8.4cm}}{Setting cookies only requires 3-4 parameters: {\bf{A cookie name and value pair}}\{\{nl\}\}{\bf{Expiration time for the cookie ad URI path that is able to access it}}\{\{nl\}\}Data NOT required for session cookies} \tn 
% Row Count 10 (+ 4)
% Row 3
\SetRowColor{white}
\mymulticolumn{1}{x{8.4cm}}{\seqsplit{document.cookie="userid=person;} expires=Wed, 1-Nov-2017; path=/";} \tn 
% Row Count 12 (+ 2)
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}


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

\end{document}