macros - naming argument and optional-argument for \def, \newcommand and newenvironment - TeX - LaTeX Stack Exchange
macros - How to create a new command whose single parameter is able to apply to both "caption" and "path" parameters of `lstinputlisting` - TeX - LaTeX Stack Exchange
How to use \newcommand in LaTeX?
package_new_command_2_result.png
Part 4 - Overleaf, Online LaTeX Editor
How to write a LaTeX macro that doesn't need a fixed number of arguments | Rainnic in the Clouds
Announcing yazap (previously zig-arg) v0.1.0: A new command line argument parser library : r/Zig
package_new_command_3.png
something nice I found about latex: putting a table inside another table using \newcommand
Make LaTeX easier with custom commands – Water Programming: A Collaborative Research Blog