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Re: Add-to-list or setq append...


From: Richard Riley
Subject: Re: Add-to-list or setq append...
Date: Wed, 04 Aug 2010 00:41:23 +0200
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/23.1 (gnu/linux)

Andrea Crotti <address@hidden> writes:

> Just a curiosity, I was wondering why in so many README and doc they
> suggest to add elements to lists with something like:
>
>
>
> (setq list (append list element))
>
>
>
> instead of doing simply
>
>
> (add-to-list list-va element)
>
>
>
> Is there any good reason or is just historical heritage?
> I think add-to-list is even more smart adding only if not there already,
> then what's the point in using that ugly form?
>


With append you can append a list. e.g

(setq load-path (append load-path '("/usr/local/emacs/site-lisp" 
"/usr/share/emacs/site-lisp")))

I don't know if add-to-list can do that?





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