\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{andytsui} \pdfinfo{ /Title (javascript-for-cambridge-a-level.pdf) /Creator (Cheatography) /Author (andytsui) /Subject (Javascript for Cambridge A Level 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}{A31C88} \definecolor{LightBackground}{HTML}{F9F0F7} \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 for Cambridge A Level Cheat Sheet}}}} \\ \normalsize{by \textcolor{DarkBackground}{andytsui} via \textcolor{DarkBackground}{\uline{cheatography.com/146601/cs/31740/}}} \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}andytsui \\ \uline{cheatography.com/andytsui} \\ \end{tabulary} \vfill \columnbreak \begin{tabulary}{5.8cm}{L} \SetRowColor{FootBackground} \mymulticolumn{1}{p{5.377cm}}{\bf\textcolor{white}{Cheat Sheet}} \\ \vspace{-2pt}Published 18th April, 2022.\\ Updated 18th April, 2022.\\ 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{tabularx}{17.67cm}{X} \SetRowColor{DarkBackground} \mymulticolumn{1}{x{17.67cm}}{\bf\textcolor{white}{Script tag}} \tn \SetRowColor{LightBackground} \mymulticolumn{1}{x{17.67cm}}{\textless{}script type="text/javascript"\textgreater{} \newline ... \newline \textless{}/script\textgreater{}} \tn \hhline{>{\arrayrulecolor{DarkBackground}}-} \end{tabularx} \par\addvspace{1.3em} \begin{tabularx}{17.67cm}{X} \SetRowColor{DarkBackground} \mymulticolumn{1}{x{17.67cm}}{\bf\textcolor{white}{Basic}} \tn \SetRowColor{LightBackground} \mymulticolumn{1}{x{17.67cm}}{// One line comment \newline \newline /{\emph{ \newline Mult-line comment \newline }}/ \newline \newline function addNumbers(a, b)\{ \newline return a+b; \newline \}} \tn \hhline{>{\arrayrulecolor{DarkBackground}}-} \end{tabularx} \par\addvspace{1.3em} \begin{tabularx}{17.67cm}{X} \SetRowColor{DarkBackground} \mymulticolumn{1}{x{17.67cm}}{\bf\textcolor{white}{Button}} \tn \SetRowColor{LightBackground} \mymulticolumn{1}{x{17.67cm}}{\textless{}button onclick="functionName()"\textgreater{}click me\textless{}/button\textgreater{} \newline \newline ... \newline \newline \textless{}script\textgreater{} \newline function functionName()\{ \newline // Write what will happen after button is clicked here \newline \} \newline \textless{}/script\textgreater{}} \tn \hhline{>{\arrayrulecolor{DarkBackground}}-} \end{tabularx} \par\addvspace{1.3em} \begin{tabularx}{17.67cm}{x{6.5626 cm} x{10.7074 cm} } \SetRowColor{DarkBackground} \mymulticolumn{2}{x{17.67cm}}{\bf\textcolor{white}{variables}} \tn % Row 0 \SetRowColor{LightBackground} `var a;` & create new variable \tn % Row Count 1 (+ 1) % Row 1 \SetRowColor{white} `var a = 10;` & create a new variable and assign value \tn % Row Count 3 (+ 2) % Row 2 \SetRowColor{LightBackground} `var b = "something";` & create a new variable and assign string \tn % Row Count 5 (+ 2) % Row 3 \SetRowColor{white} `var c = {[}1, 12, 31, 45{]}` & create a new array with 4 elements in it \tn % Row Count 7 (+ 2) % Row 4 \SetRowColor{LightBackground} `c{[}0{]}` & access item 0 (first item) in array c \tn % Row Count 9 (+ 2) \hhline{>{\arrayrulecolor{DarkBackground}}--} \end{tabularx} \par\addvspace{1.3em} \begin{tabularx}{17.67cm}{x{8.635 cm} x{8.635 cm} } \SetRowColor{DarkBackground} \mymulticolumn{2}{x{17.67cm}}{\bf\textcolor{white}{output}} \tn % Row 0 \SetRowColor{LightBackground} `console.log(a)` & Output to browser developer console \tn % Row Count 2 (+ 2) % Row 1 \SetRowColor{white} `document.write(a)` & Directly write to end of HTML document \tn % Row Count 4 (+ 2) % Row 2 \SetRowColor{LightBackground} `alert(a)` & Display popup box with the message \tn % Row Count 6 (+ 2) % Row 3 \SetRowColor{white} \seqsplit{`document.getElementById("xxx").innerHTML=a;`} & Element ID "xxx" content replaced with the message \tn % Row Count 9 (+ 3) \hhline{>{\arrayrulecolor{DarkBackground}}--} \end{tabularx} \par\addvspace{1.3em} \begin{tabularx}{17.67cm}{x{8.635 cm} x{8.635 cm} } \SetRowColor{DarkBackground} \mymulticolumn{2}{x{17.67cm}}{\bf\textcolor{white}{Input}} \tn % Row 0 \SetRowColor{LightBackground} `var a = prompt("question", {\emph{default}});` & Popup box ask question, assign value to a \tn % Row Count 3 (+ 3) % Row 1 \SetRowColor{white} `var a = \seqsplit{document.getElementById("xxx").value`} & xxx is a textbox's id, and the value in textbox assigned to a \tn % Row Count 7 (+ 4) \hhline{>{\arrayrulecolor{DarkBackground}}--} \end{tabularx} \par\addvspace{1.3em} \begin{tabularx}{17.67cm}{X} \SetRowColor{DarkBackground} \mymulticolumn{1}{x{17.67cm}}{\bf\textcolor{white}{Loops}} \tn \SetRowColor{LightBackground} \mymulticolumn{1}{x{17.67cm}}{// For loop \newline \newline for(var i=0; i\textless{}10; i++)\{ \newline document.write(i); \newline \} \newline \newline // For loop printing everything in array (arr) \newline // method 1 \newline for (var i=0; i\textless{} arr.length; i++)\{ \newline document.write(arr{[}i{]}); \newline \} \newline // method 2 \newline for (var i of arr)\{ \newline document.write(i); \newline \} \newline \newline // while loop \newline // also outputing everything in arr \newline var i=0; \newline while (i\textless{}arr.length)\{ \newline document.write(arr{[}i{]}); \newline i++; \newline \}} \tn \hhline{>{\arrayrulecolor{DarkBackground}}-} \end{tabularx} \par\addvspace{1.3em} \begin{tabularx}{17.67cm}{X} \SetRowColor{DarkBackground} \mymulticolumn{1}{x{17.67cm}}{\bf\textcolor{white}{conditions}} \tn \SetRowColor{LightBackground} \mymulticolumn{1}{x{17.67cm}}{// If \newline if (a\textgreater{}b)\{ \newline // a \textgreater{} b \newline \}else if (a==b)\{ \newline // do when a equals to b \newline \}else\{ \newline // everything else \newline \}} \tn \hhline{>{\arrayrulecolor{DarkBackground}}-} \end{tabularx} \par\addvspace{1.3em} \begin{tabularx}{17.67cm}{p{1.8997 cm} x{15.3703 cm} } \SetRowColor{DarkBackground} \mymulticolumn{2}{x{17.67cm}}{\bf\textcolor{white}{Logical}} \tn % Row 0 \SetRowColor{LightBackground} a==b & equals \tn % Row Count 1 (+ 1) % Row 1 \SetRowColor{white} a!=b & not equals \tn % Row Count 2 (+ 1) % Row 2 \SetRowColor{LightBackground} a\textgreater{}=b & a larger than or equals b \tn % Row Count 3 (+ 1) % Row 3 \SetRowColor{white} a \textless{}=b & a smaller than or equals b \tn % Row Count 5 (+ 2) % Row 4 \SetRowColor{LightBackground} \&\& & Logical and, e.g. (3\textgreater{}1) \&\& (3\textless{}10), used in if \tn % Row Count 7 (+ 2) % Row 5 \SetRowColor{white} || & Logical or, e.g. (3\textgreater{}1) || (3\textless{}-1), used in if \tn % Row Count 9 (+ 2) % Row 6 \SetRowColor{LightBackground} ! & Logical not, e.g. a!=b same as !(a==b) \tn % Row Count 11 (+ 2) \hhline{>{\arrayrulecolor{DarkBackground}}--} \end{tabularx} \par\addvspace{1.3em} \end{document}