From: Drew Adams <drew.adams@oracle.com>
To: sokobania.01@gmail.com, help-gnu-emacs@gnu.org
Subject: RE: Always using let*
Date: Tue, 16 Sep 2014 09:41:09 -0700 (PDT) [thread overview]
Message-ID: <c13ab9a1-32fb-4aed-8ffb-1e31fe4aac9e@default> (raw)
In-Reply-To: <732966c5-a667-4fc7-9d07-8da315862ce2@googlegroups.com>
> > In sum: If I use `let*' then look for a binding dependency.
> > If I use `let' then don't bother to look for one.
>
> I agree.
>
> Some cases are intermediate. If I have several variables with "enough"
> binding dependency, I use "let*".
>
> But, quite often, I have several independent variable, except one or
> two. So, I would use "let" rather than "let*", but don't bind these
> variables and then use "setq" in the body of the let:
>
> (let ((a (val-for-a))
> (b (val-for-b))
> ...
> x y) ; depend on a b
> (setq x (val-for-x a b))
> (setq y (val-for-y a b))
> ...)
Yup. Me too. Especially if any processing needs to be done
after the bindings and before the assignments (setq).
next prev parent reply other threads:[~2014-09-16 16:41 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-09-14 19:46 Always using let* Cecil Westerhof
2014-09-14 21:25 ` Drew Adams
2014-09-15 16:15 ` Drew Adams
[not found] ` <mailman.8924.1410797740.1147.help-gnu-emacs@gnu.org>
2014-09-15 18:01 ` Cecil Westerhof
2014-09-15 22:20 ` Emanuel Berg
2014-09-16 12:05 ` Cecil Westerhof
2014-09-16 22:40 ` Emanuel Berg
2014-09-18 17:02 ` Cecil Westerhof
2014-09-18 21:05 ` Emanuel Berg
2014-09-16 14:23 ` sokobania.01
2014-09-16 16:41 ` Drew Adams [this message]
2014-09-16 20:49 ` Stefan Monnier
2014-09-16 22:45 ` Emanuel Berg
[not found] ` <mailman.8998.1410901776.1147.help-gnu-emacs@gnu.org>
2014-09-16 22:48 ` Emanuel Berg
2014-09-17 1:09 ` Stefan Monnier
2014-09-17 1:18 ` Emanuel Berg
2014-09-14 21:40 ` Joe Fineman
[not found] ` <mailman.8868.1410729956.1147.help-gnu-emacs@gnu.org>
2014-09-14 21:41 ` Emanuel Berg
2014-09-14 22:11 ` Cecil Westerhof
2014-09-14 22:56 ` Drew Adams
2014-09-14 22:41 ` Stefan Monnier
2014-09-14 23:06 ` Drew Adams
[not found] ` <mailman.8871.1410736002.1147.help-gnu-emacs@gnu.org>
2014-09-15 0:47 ` Emanuel Berg
2014-09-15 2:12 ` Pascal J. Bourguignon
2014-09-15 2:22 ` Stefan Monnier
2014-09-15 2:59 ` Pascal J. Bourguignon
2014-09-15 12:31 ` Stefan Monnier
2014-09-15 16:15 ` Drew Adams
2014-09-15 19:05 ` Stefan Monnier
[not found] ` <mailman.8930.1410808006.1147.help-gnu-emacs@gnu.org>
2014-09-15 22:28 ` Emanuel Berg
2014-09-16 0:38 ` Pascal J. Bourguignon
2014-09-15 13:14 ` Barry Margolin
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