Zwitterionic digressions - Get user inputs in Emacs Lisp

A few suggestions for your example command: When using `message` you'll want to provide the format-string argument. Otherwise the user's strings will fail if they include format specifiers. e.g. if your `goodvibes` list includes `"%dont mind me%"`, the `%d` will be interpreted as part of the format-string argument and will throw an error. For an error caused by user input, it's better to use `user-error`. This will prevent the debugger from being hit any time a user inputs an out of range number. You can rely on `or` in simple cases like this. Another version of your command could be: (defun cheer-me-up (n) (interactive "nChoose a number, take good vibes~ ") (let ((index (1- n))) (message "%s" (or (nth index goodvibes) (user-error "Number out of bounds: %d > %d" index (length goodvibes))))))

I totally get your point, thank you for your comment. I will update the post accordingly. Edit: I'm going to cite your comment in my post and advising the reader to prefer `user-error` to `error`. The other changes are of course better, but I expressly avoided `let` and other keywords for sake of simplicity, so I will stick to the previous logic.

Nice work. Thanks for sharing

Thanks, I'm glad this is appreciated :D