Re: append, push, and add-to-list.

[Emanuel Berg via Users list for the GNU Emacs text editor <help-gnu-emacs@gnu.org>]

Hongyi Zhao wrote:

> I've noticed there are some similar functions, i.e., append,
> push, and add-to-list, for revising/updating the content of
> a list. But I'm still not so clear on the specific use
> scenarios for them. Consider the following command [1]

`nconc', `cl-pushnew', (setq lst `(,@lst el)) ...

> [...] Which methods are preferable?

Good question, perhaps in the manual somewhere they listed
and explained all in one place, if not, the help (`C-h f')
should be your friend.

But my intuition tells me, just because there are many options
a, b, ..., and z, that doesn't mean necessarily that one is
optimal for that situation.

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