Create a new command with one argument that can be used as a command itself?

Question

My idea is to create a new command with one argument that can be used as a command itself.

For example something like \newcommand{\formattext}[1]{\#1{#1}} creates a new command called formattext which should be used as \formattext{textit} to give me the same result of \texit{textit}.

\documentclass{standalone}

\newcommand{\formattext}[1]{\#1{#1}}

\begin{document}
    \formattext{textit}
\end{document}

I want the result to look like this by using \formattext{textit}:

But instead I get this:

Is this even somehow possible?

Answer 1

The \csname primitive constructs control sequence tokens, so

\documentclass{standalone}

\newcommand{\formattext}[1]{\csname#1\endcsname{#1}}

\begin{document}
    \formattext{textit}
\end{document}