LaTeX – Todonotes inline without specifying the inline argument

I use the todonotes package for LaTeX.

But I mostly use the inline command of it.

In order to avoid having to repeat the same argument again and again, I define this new command

\newcommand{\todoin}[1][]{\todo[inline, #1]}

Now I can simpy write

\todoin{test}

And it will appear as an inline todo note

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LaTeX – Insert Javascript code with lstlisting package

lstlisting package is nice to insert snippets of code in the LaTeX documents but it does not support Javascript by default.

To add this support, insert those lines in the header of your main.tex file.

%Define the listing package
\usepackage{listings} %code highlighter
\usepackage{color} %use color
\definecolor{mygreen}{rgb}{0,0.6,0}
\definecolor{mygray}{rgb}{0.5,0.5,0.5}
\definecolor{mymauve}{rgb}{0.58,0,0.82}

%Customize a bit the look
\lstset{ %
backgroundcolor=\color{white}, % choose the background color; you must add \usepackage{color} or \usepackage{xcolor}
basicstyle=\footnotesize, % the size of the fonts that are used for the code
breakatwhitespace=false, % sets if automatic breaks should only happen at whitespace
breaklines=true, % sets automatic line breaking
captionpos=b, % sets the caption-position to bottom
commentstyle=\color{mygreen}, % comment style
deletekeywords={...}, % if you want to delete keywords from the given language
escapeinside={\%*}{*)}, % if you want to add LaTeX within your code
extendedchars=true, % lets you use non-ASCII characters; for 8-bits encodings only, does not work with UTF-8
frame=single, % adds a frame around the code
keepspaces=true, % keeps spaces in text, useful for keeping indentation of code (possibly needs columns=flexible)
keywordstyle=\color{blue}, % keyword style
% language=Octave, % the language of the code
morekeywords={*,...}, % if you want to add more keywords to the set
numbers=left, % where to put the line-numbers; possible values are (none, left, right)
numbersep=5pt, % how far the line-numbers are from the code
numberstyle=\tiny\color{mygray}, % the style that is used for the line-numbers
rulecolor=\color{black}, % if not set, the frame-color may be changed on line-breaks within not-black text (e.g. comments (green here))
showspaces=false, % show spaces everywhere adding particular underscores; it overrides 'showstringspaces'
showstringspaces=false, % underline spaces within strings only
showtabs=false, % show tabs within strings adding particular underscores
stepnumber=1, % the step between two line-numbers. If it's 1, each line will be numbered
stringstyle=\color{mymauve}, % string literal style
tabsize=2, % sets default tabsize to 2 spaces
title=\lstname % show the filename of files included with \lstinputlisting; also try caption instead of title
}
%END of listing package%

\definecolor{darkgray}{rgb}{.4,.4,.4}
\definecolor{purple}{rgb}{0.65, 0.12, 0.82}

%define Javascript language
\lstdefinelanguage{JavaScript}{
keywords={typeof, new, true, false, catch, function, return, null, catch, switch, var, if, in, while, do, else, case, break},
keywordstyle=\color{blue}\bfseries,
ndkeywords={class, export, boolean, throw, implements, import, this},
ndkeywordstyle=\color{darkgray}\bfseries,
identifierstyle=\color{black},
sensitive=false,
comment=[l]{//},
morecomment=[s]{/*}{*/},
commentstyle=\color{purple}\ttfamily,
stringstyle=\color{red}\ttfamily,
morestring=[b]',
morestring=[b]"
}

\lstset{
language=JavaScript,
extendedchars=true,
basicstyle=\footnotesize\ttfamily,
showstringspaces=false,
showspaces=false,
numbers=left,
numberstyle=\footnotesize,
numbersep=9pt,
tabsize=2,
breaklines=true,
showtabs=false,
captionpos=b
}

Now we can use the Javascript langage:

\begin{lstlisting}[language=JavaScript]
var foo = function(){
console.log('foo');
}
foo();
\end{lstlisting}

LaTeX – insert code from external file

The listing package allow you to insert code from an external file.

See the official documentation for more information.

Or copy paste the example below.

You can also write code directly in your .tex file.

\documentclass[11pt]{article}
\usepackage{listings}
%those are just lines to make it look nice
 \lstset{frame=tb,
 language=Java,
 aboveskip=3mm,
 belowskip=3mm,
 showstringspaces=false,
 columns=flexible,
 basicstyle={\small\ttfamily},
 numbers=none,
 numberstyle=\tiny\color{gray},
 keywordstyle=\color{blue},
 commentstyle=\color{dkgreen},
 stringstyle=\color{mauve},
 breaklines=true,
 breakatwhitespace=true
 tabsize=3
 }
\usepackage{color} %this is to add some cool colors
\definecolor{dkgreen}{rgb}{0,0.6,0}
\definecolor{gray}{rgb}{0.5,0.5,0.5}
\definecolor{mauve}{rgb}{0.58,0,0.82}
 
 \begin{document}
\lstinputlisting[language=java, inputencoding=utf8]{getParent.java}
\end{document}

LaTeX – insert code

[Quick example]

(For much beautiful result, see complete example below)
\documentclass[11pt]{article}
\usepackage{listings} %Package to include

\begin{document}
\begin{lstlisting}[language=C]
int main (char** args[]){
 return 0;
}
\end{lstlisting}
\end{document}

The listing package provides easy way to insert nice code snippet in LaTeX.

See the official documentation for more information. Or copy paste the example below.
You can also import code from an external file.

It supports the following programming languages:

ABAP IDL PL/I
ACSL inform Plasm
Ada Java POV
Algol JVMIS Prolog
Ant ksh Promela
Assembler Lisp Python
Awk Logo R
bash make Reduce
Basic Mathematica Rexx
C Matlab RSL
C++ Mercury Ruby
Caml MetaPost S
Clean Miranda SAS
Cobol Mizar Scilab
Comal ML sh
csh Modelica SHELXL
Delphi Modula-2 Simula
Eiffel MuPAD SQL
Elan NASTRAN tcl
erlang Oberon-2 TeX
Euphoria OCL VBScript
Fortran Octave Verilog
GCL Oz VHDL
Gnuplot Pascal VRML
Haskell Perl XML
HTML PHP XSLT

Just copy-paste this example:

\documentclass[11pt]{article}
%Define the listing package
\usepackage{listings} %code highlighter
\usepackage{color} %use color
\definecolor{mygreen}{rgb}{0,0.6,0}
\definecolor{mygray}{rgb}{0.5,0.5,0.5}
\definecolor{mymauve}{rgb}{0.58,0,0.82}

%Customize a bit the look
\lstset{ %
 backgroundcolor=\color{white}, % choose the background color; you must add \usepackage{color} or \usepackage{xcolor}
 basicstyle=\footnotesize, % the size of the fonts that are used for the code
 breakatwhitespace=false, % sets if automatic breaks should only happen at whitespace
 breaklines=true, % sets automatic line breaking
 captionpos=b, % sets the caption-position to bottom
 commentstyle=\color{mygreen}, % comment style
 deletekeywords={...}, % if you want to delete keywords from the given language
 escapeinside={\%*}{*)}, % if you want to add LaTeX within your code
 extendedchars=true, % lets you use non-ASCII characters; for 8-bits encodings only, does not work with UTF-8
 frame=single, % adds a frame around the code
 keepspaces=true, % keeps spaces in text, useful for keeping indentation of code (possibly needs columns=flexible)
 keywordstyle=\color{blue}, % keyword style
% language=Octave, % the language of the code
 morekeywords={*,...}, % if you want to add more keywords to the set
 numbers=left, % where to put the line-numbers; possible values are (none, left, right)
 numbersep=5pt, % how far the line-numbers are from the code
 numberstyle=\tiny\color{mygray}, % the style that is used for the line-numbers
 rulecolor=\color{black}, % if not set, the frame-color may be changed on line-breaks within not-black text (e.g. comments (green here))
 showspaces=false, % show spaces everywhere adding particular underscores; it overrides 'showstringspaces'
 showstringspaces=false, % underline spaces within strings only
 showtabs=false, % show tabs within strings adding particular underscores
 stepnumber=1, % the step between two line-numbers. If it's 1, each line will be numbered
 stringstyle=\color{mymauve}, % string literal style
 tabsize=2, % sets default tabsize to 2 spaces
 title=\lstname % show the filename of files included with \lstinputlisting; also try caption instead of title
}
%END of listing package%

\begin{document}
\begin{lstlisting}[language=C, caption={myListing}, label={lst:myListing}]
#include "test.h"
int main (char** args[]){
 return 0;
}
\end{lstlisting}
\end{document}