Re: Invoking a function from a list of functions

[Andreas Röhler]

On 09.11.2018 00:01, Tim Johnson wrote:
> Given a list of functions:
> (setq funcs '(scroll-up-line scroll-down-line))
>
> And assuming that these functions have a similar argument list,
> I can invoke a function as:
>
> (funcall (nth 1 funcs))
> ;; or optionally
> (funcall (nth 1 funcs) 2)
>
> That approach is sufficient for my needs at the moment, an example
> of which might be to cycle through color themes invoked by my own
> functions.
>
> However, in the quest for futher edification I'd welcome URLs to
> documentation or discussion, as well as any contributions other
> emacsen might choose to make. Keywords also.
>
> I had a heck of a time getting relevant responses from google. I
> actually don't know what keywords to search with.
>
> thanks
> GNU Emacs 26.1 GTK+ Version, Ubuntu 16.04


Maybe that way:

(defun foo ()
  (message "%s" "foo"))

(defun bar ()
  (message "%s" "bar"))

(setq my-list-of-functions (list 'foo 'bar))

(funcall (nth 1 my-list-of-functions))

;;;;;

The point is to hand over functions as symbols, not their value