Testing a runlatex JavaScript
Parameterised as requested by Stefan for his forum sites.
This drops the Overleaf link, just posting to TeXLive.net and supports
adding a guessed default preamble to fragments that have no \documentclass or % !TEX ... ??tex comment.
\documentclass{article}
\usepackage{graphicx}
\begin{document}
something \includegraphics[height=1cm]{example-image}
\end{document}
something \includegraphics[height=1cm]{example-image}
something \includegraphics[height=1cm]{example-image}
something
\begin{align}
x+y&=1\\
y&=2
\end{align}
\tikz \draw[thick,rounded corners=8pt] (0,0) -- (0,2) -- (1,3.25) -- (2,2) -- (2,0) -- (0,2) -- (2,2) -- (0,0) -- (2,0);
\DeclareMathOperator*{\Lim}{Lim}
\begin{document}
$\Lim f$
\qty[mode = text]{1.23}{J.mol^{-1}.K^{-1}}
An example from texwelt.de.
\documentclass[a4paper]{scrartcl}
\usepackage{pstricks}
\usepackage{pstricks-add}
\usepackage[scale=1]{geometry}
\begin{document}
\begin{pspicture}[linecolor=red,linewidth=5pt](0,5)(0,0)
\pscurve[showpoints=false](4.6,5.1)(3.9,3)(2.8,1.5)(1,0.3)(-0.05,-0.1)
\end{pspicture}
\begin{pspicture}[linecolor=blue,linewidth=5pt](0,-1)(0,0)
\pscurve[showpoints=false](3.7,5.05)(3.2,3)(2.4,1.3)(1,-0.4)(0,-1.2)
\end{pspicture}
\end{document}
An example from learn LaTeX.
\documentclass{article}
\begin{document}
$ 2\pi \approx \directlua{ tex.print(2 * math.pi) } $
\end{document}
# !TEX none # Editable bash script export TEXINPUTS=zzzz export PATH=somewhere
/* !TEX noedit */ void noneEditC(int x);