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Re: Add-to-list or setq append...
From: |
Pascal J. Bourguignon |
Subject: |
Re: Add-to-list or setq append... |
Date: |
Wed, 08 Dec 2010 15:22:41 -0000 |
User-agent: |
Gnus/5.101 (Gnus v5.10.10) Emacs/23.2 (gnu/linux) |
Andrea Crotti <andrea.crotti.0@gmail.com> writes:
> Just a curiosity, I was wondering why in so many README and doc they
> suggest to add elements to lists with something like:
>
> --8<---------------cut here---------------start------------->8---
> (setq list (append list element))
> --8<---------------cut here---------------end--------------->8---
>
> instead of doing simply
> --8<---------------cut here---------------start------------->8---
> (add-to-list list-va element)
> --8<---------------cut here---------------end--------------->8---
>
> 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?
I would rather use:
(require 'cl)
(pushnew element list-va)
than add-to-list.
--
__Pascal Bourguignon__ http://www.informatimago.com/
- Re: Add-to-list or setq append...,
Pascal J. Bourguignon <=