\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{jhlee5}
\pdfinfo{
  /Title (web-components.pdf)
  /Creator (Cheatography)
  /Author (jhlee5)
  /Subject (Web Components 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}{0D3FA3}
\definecolor{LightBackground}{HTML}{EFF3F9}
\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{Web Components Cheat Sheet}}}} \\
    \normalsize{by \textcolor{DarkBackground}{jhlee5} via \textcolor{DarkBackground}{\uline{cheatography.com/20887/cs/3758/}}}
\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}jhlee5 \\
  \uline{cheatography.com/jhlee5} \\
  \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 12th 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}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{5.377cm}}{\bf\textcolor{white}{KnockoutJS}}  \tn
\SetRowColor{white}
\mymulticolumn{1}{x{5.377cm}}{{\bf{1. Inline Component}} \newline % Row Count 1 (+ 1)
{\emph{ A. Define}} \newline % Row Count 2 (+ 1)
\seqsplit{ko.components.register(component-name}, \{ \newline % Row Count 3 (+ 1)
    ~viewModel: fn(params), \newline % Row Count 4 (+ 1)
    ~template: html string \newline % Row Count 5 (+ 1)
\}); \newline % Row Count 6 (+ 1)
{\emph{ B. Declare}} \newline % Row Count 7 (+ 1)
i. Custom Element \newline % Row Count 8 (+ 1)
\textless{}component-name params=""\textgreater{}\textless{}/component-name\textgreater{} \newline % Row Count 9 (+ 1)
ii. Component Binding \newline % Row Count 10 (+ 1)
\textless{}div data-bind="component: 'component-name'"\textgreater{}\textless{}/div\textgreater{} \newline % Row Count 12 (+ 2)
\textless{}div data-bind="component: observable"\textgreater{}\textless{}/div\textgreater{} \newline % Row Count 13 (+ 1)
\textless{}div data-bind="component: \{name: '', params: \{\}\}"\textgreater{}\textless{}/div\textgreater{} \newline % Row Count 15 (+ 2)
{\bf{2. External Dependencies Component}} \newline % Row Count 16 (+ 1)
{\emph{ A. Define}} \newline % Row Count 17 (+ 1)
\seqsplit{ko.components.register(widget-name}, \{ \newline % Row Count 18 (+ 1)
    ~viewModel: \{ require: moduleid \}, \newline % Row Count 19 (+ 1)
    ~template: \{ require: 'text!url' \} \newline % Row Count 20 (+ 1)
\});% Row Count 21 (+ 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}{KnockoutJS Defining ViewModel}}  \tn
\SetRowColor{white}
\mymulticolumn{1}{x{5.377cm}}{{\bf{ 1. Constructor Function}} \newline % Row Count 1 (+ 1)
function GenericViewModel(params) \{ \newline % Row Count 2 (+ 1)
    // 'params' is an object whose key/value pairs are the parameters \newline % Row Count 4 (+ 2)
    // passed from the component binding or custom element. \newline % Row Count 6 (+ 2)
    this.someProperty = params.something; \newline % Row Count 7 (+ 1)
\} \newline % Row Count 8 (+ 1)
\seqsplit{ko.components.register('component-name'}, \{ \newline % Row Count 9 (+ 1)
    viewModel: GenericViewModel, \newline % Row Count 10 (+ 1)
    template: ... \newline % Row Count 11 (+ 1)
\}); \newline % Row Count 12 (+ 1)
{\bf{ 2. Shared Instance}} \newline % Row Count 13 (+ 1)
var sharedViewModelInstance = \{ ... \}; \newline % Row Count 14 (+ 1)
\seqsplit{ko.components.register('component-name'}, \{ \newline % Row Count 15 (+ 1)
    viewModel: sharedViewModelInstance, \newline % Row Count 16 (+ 1)
    template: ... \newline % Row Count 17 (+ 1)
\}); \newline % Row Count 18 (+ 1)
{\bf{ 3. createViewModelFactory}} \newline % Row Count 19 (+ 1)
\seqsplit{ko.components.register('component-name'}, \{ \newline % Row Count 20 (+ 1)
    viewModel: \{ \newline % Row Count 21 (+ 1)
        createViewModel: function(params, componentInfo) \{ \newline % Row Count 23 (+ 2)
            // - 'params' is an object whose key/value pairs are the parameters \newline % Row Count 25 (+ 2)
            //   passed from the component binding or custom element \newline % Row Count 27 (+ 2)
            // - 'componentInfo.element' is the element the component is being \newline % Row Count 29 (+ 2)
            //   injected into. When createViewModel is called, the template has \newline % Row Count 31 (+ 2)
} \tn 
\end{tabularx}
\par\addvspace{1.3em}

\vfill
\columnbreak
\begin{tabularx}{5.377cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{5.377cm}}{\bf\textcolor{white}{KnockoutJS Defining ViewModel (cont)}}  \tn
\SetRowColor{white}
\mymulticolumn{1}{x{5.377cm}}{            //   already been injected into this element, but isn't yet bound. \newline % Row Count 2 (+ 2)
            // - \seqsplit{'componentInfo.templateNodes'} is an array containing any DOM \newline % Row Count 4 (+ 2)
            //   nodes that have been supplied to the component. See below. \newline % Row Count 6 (+ 2)
            // Return the desired view model instance, e.g.: \newline % Row Count 8 (+ 2)
            return new MyViewModel(params); \newline % Row Count 9 (+ 1)
        \} \newline % Row Count 10 (+ 1)
    \}, \newline % Row Count 11 (+ 1)
    template: ... \newline % Row Count 12 (+ 1)
\}); \newline % Row Count 13 (+ 1)
{\bf{DOM manipulation should be done in custom bindings}} \newline % Row Count 15 (+ 2)
{\bf{ 4. AMD ViewModel}} \newline % Row Count 16 (+ 1)
\seqsplit{ko.components.register('component-name'}, \{ \newline % Row Count 17 (+ 1)
    viewModel: \{ require: 'some/module/name' \}, \newline % Row Count 18 (+ 1)
    template: ... \newline % Row Count 19 (+ 1)
\});% Row Count 20 (+ 1)
} \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}


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

\end{document}