On Fri, Apr 29, 2022 at 04:26:51AM +0000, emacsq wrote:
> >
> > Here. It returns the last element, and it
> > chops that last element off the list.
> 
> Thanks. It's quite simple and useful  to have along with last/butlast/etc.
> 
> Will you put it into subr.el, so emacs has it built-in ?

Read Drew's code again. Read the examples he provided.

Now, answer this one question: for a list with exactly
one element, say

  (setq foo '(1))

what is its last element? What would you expect choplast
to do? What does Drew's implementation do? Surprise?

Cheers
-- 
t