# TikZ: Can a \foreach command run inside decoration = {markings,?

Can I use \foreach inside of decoration = {markings, ...?

\documentclass[convert = false, tikz]{standalone}
\usetikzlibrary{decorations.markings}
\usetikzlibrary{arrows}

\begin{document}
\begin{tikzpicture}
\begin{scope}[decoration = {markings,
\foreach \loc in {.1, .2, ..., 1}{
mark = at position \loc with {\arrow{latex}},
}
}]
\draw[postaction = decorate] (0, 0) -- (2,3);
\end{scope}
\end{tikzpicture}
\end{document}


This code freezes on compilation.

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This doesn't work (at least with your syntax). Though, the decorations.markings library provides a different syntax for the mark key that offers this.

Simply use

mark = between positions .1 and 1 step .1 with {\arrow{latex}}


You will face one problem here though, because due to TeX’s imprecision the last step with the value 1 will not be placed. But in this case it is better to place the last arrow as always using -latex so that the line gets shorten correctly.

## Code

\documentclass[convert = false, tikz]{standalone}
\usetikzlibrary{decorations.markings}
\usetikzlibrary{arrows}

\begin{document}
\begin{tikzpicture}
\begin{scope}[decoration = {markings,
mark=between positions .1 and 1 step .1 with {\arrow{latex}},
}]
\draw[postaction = decorate, -latex] (0, 0) -- (2,3);
\end{scope}
\end{tikzpicture}
\end{document}


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