\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{cbgclara} \pdfinfo{ /Title (javascript.pdf) /Creator (Cheatography) /Author (cbgclara) /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}{3B9CA3} \definecolor{LightBackground}{HTML}{F2F8F9} \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}{cbgclara} via \textcolor{DarkBackground}{\uline{cheatography.com/179214/cs/40415/}}} \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}cbgclara \\ \uline{cheatography.com/cbgclara} \\ \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 22nd September, 2023.\\ 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{1.2 cm} x{6.8 cm} } \SetRowColor{DarkBackground} \mymulticolumn{2}{x{8.4cm}}{\bf\textcolor{white}{Value Types}} \tn % Row 0 \SetRowColor{LightBackground} \seqsplit{Number} & Unicamente valores numéricos \tn % Row Count 1 (+ 1) % Row 1 \SetRowColor{white} \seqsplit{String} & Caracteres entre comillas dobles o simples \tn % Row Count 3 (+ 2) % Row 2 \SetRowColor{LightBackground} \seqsplit{Boolean} & True / False \tn % Row Count 5 (+ 2) \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}{Escape Characters}} \tn % Row 0 \SetRowColor{LightBackground} \textbackslash{}b & Backspace \tn % Row Count 1 (+ 1) % Row 1 \SetRowColor{white} \textbackslash{}f & Form feed \tn % Row Count 2 (+ 1) % Row 2 \SetRowColor{LightBackground} \textbackslash{}n & New Line \tn % Row Count 3 (+ 1) % Row 3 \SetRowColor{white} \textbackslash{}r & Carriage return \tn % Row Count 4 (+ 1) % Row 4 \SetRowColor{LightBackground} \textbackslash{}t & Tab \tn % Row Count 5 (+ 1) % Row 5 \SetRowColor{white} \textbackslash{}' & Apostrophe (') \tn % Row Count 6 (+ 1) % Row 6 \SetRowColor{LightBackground} \textbackslash{}" & Doble quote (") \tn % Row Count 7 (+ 1) % Row 7 \SetRowColor{white} \textbackslash{}\textbackslash{} & Blackslash (\textbackslash{}) \tn % Row Count 8 (+ 1) % Row 8 \SetRowColor{LightBackground} \textbackslash{} {\emph{xxx}} & {\emph{xxx}} is an octal number \tn % Row Count 9 (+ 1) % Row 9 \SetRowColor{white} \textbackslash{} {\emph{x}}XX & {\emph{XX}} is a hexadecimal number \tn % Row Count 10 (+ 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}{Escape Characters}} \tn % Row 0 \SetRowColor{LightBackground} \textbackslash{}b & Backspace \tn % Row Count 1 (+ 1) % Row 1 \SetRowColor{white} \textbackslash{}f & Form feed \tn % Row Count 2 (+ 1) % Row 2 \SetRowColor{LightBackground} \textbackslash{}n & New Line \tn % Row Count 3 (+ 1) % Row 3 \SetRowColor{white} \textbackslash{}r & Carriage return \tn % Row Count 4 (+ 1) % Row 4 \SetRowColor{LightBackground} \textbackslash{}t & Tab \tn % Row Count 5 (+ 1) % Row 5 \SetRowColor{white} \textbackslash{}' & Apostrophe (') \tn % Row Count 6 (+ 1) % Row 6 \SetRowColor{LightBackground} \textbackslash{}" & Doble quote (") \tn % Row Count 7 (+ 1) % Row 7 \SetRowColor{white} \textbackslash{}\textbackslash{} & Blackslash (\textbackslash{}) \tn % Row Count 8 (+ 1) % Row 8 \SetRowColor{LightBackground} \textbackslash{} {\emph{xxx}} & {\emph{xxx}} is an octal number \tn % Row Count 9 (+ 1) % Row 9 \SetRowColor{white} \textbackslash{} {\emph{x}}XX & {\emph{XX}} is a hexadecimal number \tn % Row Count 10 (+ 1) \hhline{>{\arrayrulecolor{DarkBackground}}--} \end{tabularx} \par\addvspace{1.3em} \begin{tabularx}{8.4cm}{x{3.28 cm} x{4.72 cm} } \SetRowColor{DarkBackground} \mymulticolumn{2}{x{8.4cm}}{\bf\textcolor{white}{Variables}} \tn % Row 0 \SetRowColor{LightBackground} Declaración & {\bf{var variable;}} \tn % Row Count 1 (+ 1) % Row 1 \SetRowColor{white} Type & {\bf{typeof}} \tn % Row Count 2 (+ 1) \hhline{>{\arrayrulecolor{DarkBackground}}--} \SetRowColor{LightBackground} \mymulticolumn{2}{x{8.4cm}}{Si no se inicializa su valor es null/undefined \newline Empieza con la inicial del tipo de dato} \tn \hhline{>{\arrayrulecolor{DarkBackground}}--} \end{tabularx} \par\addvspace{1.3em} \begin{tabularx}{8.4cm}{x{2 cm} x{6 cm} } \SetRowColor{DarkBackground} \mymulticolumn{2}{x{8.4cm}}{\bf\textcolor{white}{Operators}} \tn % Row 0 \SetRowColor{LightBackground} x {\bf{+}} y & {\bf{Adds}} x and y (numeric) \tn % Row Count 1 (+ 1) % Row 1 \SetRowColor{white} & {\bf{Concatinates}} x and y (string) \tn % Row Count 3 (+ 2) % Row 2 \SetRowColor{LightBackground} x {\bf{-}} y & {\bf{Subtracts}} y from x \tn % Row Count 4 (+ 1) % Row 3 \SetRowColor{white} x {\bf{ * }} y & {\bf{Multiplies}}* x and y \tn % Row Count 6 (+ 2) % Row 4 \SetRowColor{LightBackground} x{\bf{/}}y & {\bf{Divides}} x by y \tn % Row Count 7 (+ 1) % Row 5 \SetRowColor{white} x {\bf{\%}} y & {\bf{Modulus}} (division remainder) \tn % Row Count 9 (+ 2) % Row 6 \SetRowColor{LightBackground} x++, ++x & {\bf{Adds one}} to x \tn % Row Count 10 (+ 1) % Row 7 \SetRowColor{white} x-{}-, -{}-x & {\bf{Subtracts one}} from x \tn % Row Count 11 (+ 1) \hhline{>{\arrayrulecolor{DarkBackground}}--} \end{tabularx} \par\addvspace{1.3em} \begin{tabularx}{8.4cm}{p{1.68 cm} x{6.32 cm} } \SetRowColor{DarkBackground} \mymulticolumn{2}{x{8.4cm}}{\bf\textcolor{white}{Assignments}} \tn % Row 0 \SetRowColor{LightBackground} x = y & Set 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 /= & 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}{8.4cm}{x{1.2 cm} x{6.8 cm} } \SetRowColor{DarkBackground} \mymulticolumn{2}{x{8.4cm}}{\bf\textcolor{white}{Comparisons}} \tn % Row 0 \SetRowColor{LightBackground} x == y & Returns true if x and y are {\bf{equals}} \tn % Row Count 2 (+ 2) % Row 1 \SetRowColor{white} x === y & Returns true if x and y are {\bf{*identical}} (same type) \tn % Row Count 4 (+ 2) % Row 2 \SetRowColor{LightBackground} x != y & Returns true if x and y are {\bf{not equal}} \tn % Row Count 6 (+ 2) % Row 3 \SetRowColor{white} x \textgreater{} y & Returns true if x is {\bf{greater than}} y \tn % Row Count 8 (+ 2) % Row 4 \SetRowColor{LightBackground} x \textless{} y & Returns true if x is {\bf{less than}} y \tn % Row Count 10 (+ 2) % Row 5 \SetRowColor{white} x \textgreater{}= y & Returns true if x is {\bf{greater than or equal to}} y \tn % Row Count 12 (+ 2) % Row 6 \SetRowColor{LightBackground} x \textless{}= y & Returns tru if x is {\bf{lees than or equal to}} y \tn % Row Count 14 (+ 2) % Row 7 \SetRowColor{white} x \&\& y & Returns true if {\bf{both are true}} \tn % Row Count 15 (+ 1) % Row 8 \SetRowColor{LightBackground} x || y & Returns true if {\bf{either are true}} \tn % Row Count 17 (+ 2) % Row 9 \SetRowColor{white} !x & Return true if x is {\bf{false}} \tn % Row Count 18 (+ 1) \hhline{>{\arrayrulecolor{DarkBackground}}--} \end{tabularx} \par\addvspace{1.3em} \begin{tabularx}{8.4cm}{x{1.368 cm} x{1.596 cm} x{4.636 cm} } \SetRowColor{DarkBackground} \mymulticolumn{3}{x{8.4cm}}{\bf\textcolor{white}{Conversions}} \tn % Row 0 \SetRowColor{LightBackground} {\bf{Number()}} & Valor a numero & `Number(true)` \seqsplit{`Number(false)``Number(new} Date());` \tn % Row Count 3 (+ 3) % Row 1 \SetRowColor{white} {\bf{String()}} & Valor a cadena & `new String ("123");` \tn % Row Count 5 (+ 2) \hhline{>{\arrayrulecolor{DarkBackground}}---} \end{tabularx} \par\addvspace{1.3em} \begin{tabularx}{8.4cm}{x{3.76 cm} x{4.24 cm} } \SetRowColor{DarkBackground} \mymulticolumn{2}{x{8.4cm}}{\bf\textcolor{white}{Conditional Statement}} \tn % Row 0 \SetRowColor{LightBackground} {\bf{If}} & `if (cond) \{ ... \}` \tn % Row Count 1 (+ 1) % Row 1 \SetRowColor{white} {\bf{if }}... {\bf{else}} & `if (cond) \{ ...\}\{ else\{ ...\}` \tn % Row Count 3 (+ 2) % Row 2 \SetRowColor{LightBackground} {\bf{If}} ... {\bf{else if}} ... {\bf{else}} & `if (cond)\{ ... \}\{ else if(cond) ...\}\{ else \{...\}` \tn % Row Count 6 (+ 3) % Row 3 \SetRowColor{white} {\bf{switch}} & `swtich(...)\{ case n: .. case n-1: ... default: ...\}´ \tn % Row Count 9 (+ 3) \hhline{>{\arrayrulecolor{DarkBackground}}--} \end{tabularx} \par\addvspace{1.3em} \begin{tabularx}{8.4cm}{x{1.976 cm} x{2.812 cm} x{2.812 cm} } \SetRowColor{DarkBackground} \mymulticolumn{3}{x{8.4cm}}{\bf\textcolor{white}{Function}} \tn % Row 0 \SetRowColor{LightBackground} {\bf{.write}} & Escribe cadena de texto en ese lugar & \seqsplit{`document.write("Hola} mundo");` \tn % Row Count 3 (+ 3) % Row 1 \SetRowColor{white} {\bf{alert}} & Muestra una ventana con el texto que pasamos & `alert("El numero es; " + num);` \tn % Row Count 7 (+ 4) % Row 2 \SetRowColor{LightBackground} {\bf{prompt}} & Muestra dialogo con mensaje opcional solicitando que se introduzca un texto & \seqsplit{`prompt("Introduce} un numero ")` \tn % Row Count 13 (+ 6) % Row 3 \SetRowColor{white} {\bf{.getElementById}} & Recupera único elemento que coincida con el id & \seqsplit{`documente.getElementById(id)`} \tn % Row Count 17 (+ 4) % Row 4 \SetRowColor{LightBackground} {\bf{.getElementsByTag}} & Recupera todo lo que coincida con la etiqueta & \seqsplit{`element.getElementsByTagName(tagName)`} \tn % Row Count 21 (+ 4) % Row 5 \SetRowColor{white} {\bf{.getElementsByName}} & Recupera todo lo que coincida con el valor del atributo name & \seqsplit{`document.getElementByName(name);`} \tn % Row Count 26 (+ 5) % Row 6 \SetRowColor{LightBackground} {\bf{.getElementsByClassName}} & Recupera todo lo que coincida con el valor del atributo class & \seqsplit{`document.getElementByClassName(class);`} \tn % Row Count 31 (+ 5) \end{tabularx} \par\addvspace{1.3em} \vfill \columnbreak \begin{tabularx}{8.4cm}{x{1.976 cm} x{2.812 cm} x{2.812 cm} } \SetRowColor{DarkBackground} \mymulticolumn{3}{x{8.4cm}}{\bf\textcolor{white}{Function (cont)}} \tn % Row 7 \SetRowColor{LightBackground} {\bf{.querySelector}} & Devuelve primer elemento del documento que coincida con los selectores & \seqsplit{`document.querySelector(selectores)`} \tn % Row Count 5 (+ 5) % Row 8 \SetRowColor{white} {\bf{.querySelectorAll}} & Devuelve array de elementos dentro del array que coincidan con los selectores & \seqsplit{`document.querySelectorAll(selectores)`} \tn % Row Count 11 (+ 6) % Row 9 \SetRowColor{LightBackground} {\bf{eval}} & Opera un codillo representado como cadena de caracteres & \seqsplit{`eval("x"*"y")} + "\textless{}br\textgreater{}"` \tn % Row Count 15 (+ 4) % Row 10 \SetRowColor{white} {\bf{isFinite}} & Comprueba si el parametro es numero finito, realiza conversión & \seqsplit{`isFinite(("Hola"))`} `is Finite(123);` \tn % Row Count 20 (+ 5) % Row 11 \SetRowColor{LightBackground} {\bf{isNaN}} & Detecta numeros invalidos & `isNaN(num)` \tn % Row Count 22 (+ 2) % Row 12 \SetRowColor{white} {\bf{parseInt}}/ {\bf{parseFloat}} & Lectura de un numero desde cadena & \seqsplit{`parseInt(cad)`} \seqsplit{`parseFloat(Cad)`} \tn % Row Count 25 (+ 3) \hhline{>{\arrayrulecolor{DarkBackground}}---} \end{tabularx} \par\addvspace{1.3em} \begin{tabularx}{8.4cm}{x{3.6 cm} x{4.4 cm} } \SetRowColor{DarkBackground} \mymulticolumn{2}{x{8.4cm}}{\bf\textcolor{white}{Conditional Loop Statement}} \tn % Row 0 \SetRowColor{LightBackground} {\bf{While}} & `While (...) \{ ...\}` \tn % Row Count 1 (+ 1) % Row 1 \SetRowColor{white} {\bf{Do}}... {\bf{While}} & `do \{ ...\} while (...)` \tn % Row Count 3 (+ 2) \hhline{>{\arrayrulecolor{DarkBackground}}--} \end{tabularx} \par\addvspace{1.3em} \begin{tabularx}{8.4cm}{x{2.4 cm} x{5.6 cm} } \SetRowColor{DarkBackground} \mymulticolumn{2}{x{8.4cm}}{\bf\textcolor{white}{Iterative Loop Statement}} \tn % Row 0 \SetRowColor{LightBackground} {\bf{For}} & for (...)\{ ... \} \tn % Row Count 1 (+ 1) \hhline{>{\arrayrulecolor{DarkBackground}}--} \end{tabularx} \par\addvspace{1.3em} \begin{tabularx}{8.4cm}{x{1.444 cm} x{2.888 cm} x{3.268 cm} } \SetRowColor{DarkBackground} \mymulticolumn{3}{x{8.4cm}}{\bf\textcolor{white}{Vectors}} \tn % Row 0 \SetRowColor{LightBackground} \mymulticolumn{3}{x{8.4cm}}{{\bf{Declaration}}} \tn % Row Count 1 (+ 1) % Row 1 \SetRowColor{white} \mymulticolumn{3}{x{8.4cm}}{`var ... = new Array ("...", "...");`} \tn % Row Count 2 (+ 1) % Row 2 \SetRowColor{LightBackground} \mymulticolumn{3}{x{8.4cm}}{`var ... = {[}"...", "..."{]}`} \tn % Row Count 3 (+ 1) % Row 3 \SetRowColor{white} \mymulticolumn{3}{x{8.4cm}}{{\bf{Acces}}} \tn % Row Count 4 (+ 1) % Row 4 \SetRowColor{LightBackground} \mymulticolumn{3}{x{8.4cm}}{`vector{[}i{]}`} \tn % Row Count 5 (+ 1) % Row 5 \SetRowColor{white} \mymulticolumn{3}{x{8.4cm}}{{\bf{Recorrido}}} \tn % Row Count 6 (+ 1) % Row 6 \SetRowColor{LightBackground} \mymulticolumn{3}{x{8.4cm}}{`for (var in vector)\{ ...\}`} \tn % Row Count 7 (+ 1) % Row 7 \SetRowColor{white} \mymulticolumn{3}{x{8.4cm}}{{\bf{Properties}}} \tn % Row Count 8 (+ 1) % Row 8 \SetRowColor{LightBackground} {\bf{length()}} & & \seqsplit{`vector.length()`} \tn % Row Count 10 (+ 2) % Row 9 \SetRowColor{white} {\bf{push()}} & Añade al final & \seqsplit{`vector.push("...")`} \tn % Row Count 12 (+ 2) % Row 10 \SetRowColor{LightBackground} {\bf{unshift()}} & Añade al inicio & \seqsplit{`vector.unshit("..."}, "...")` \tn % Row Count 14 (+ 2) % Row 11 \SetRowColor{white} {\bf{pop()}} & Elimina ultimo y devuelve & `vector.pop()` \tn % Row Count 16 (+ 2) % Row 12 \SetRowColor{LightBackground} {\bf{shift()}} & Elimina primero y devuelve & `vector.shift()` \tn % Row Count 18 (+ 2) \hhline{>{\arrayrulecolor{DarkBackground}}---} \end{tabularx} \par\addvspace{1.3em} % That's all folks \end{multicols*} \end{document}