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From: "Iñigo Serna" <inigoserna@gmail.com>
To: help-gnu-emacs@gnu.org
Subject: Re: How to use a variable from outer scope in the success function of a request call?
Date: Sun, 30 Aug 2015 00:24:20 +0200	[thread overview]
Message-ID: <87d1y5viln.fsf@inigo.katxi.org> (raw)
In-Reply-To: <87y4guxu6o.fsf@kuiper.lan.informatimago.com>

Hi again

Pascal J. Bourguignon writes:
> [...]
>
> However, without lexical-binding, variables are dynamic.  
>
>     lexical = space = where
>     dynamic = time  = when
>
> Therefore WHEN this anonymous function is called, it may happen that no
> variable named c exist anymore. Or worse, than another variable named c
> THEN exist that is not the one that existed when your function fn4 was
> executing!
>
> In the context of Common Lisp, here is an explaination of
> lexical/dynamic and global/local
> https://groups.google.com/forum/#!msg/comp.lang.lisp/4VyopdWcFI4/1sDQU-3H8VgJ
>
> Google also about the FUNARG problem.

I understand the differences now.

Thanks a lot Pascal for your kind explanations.

Best regards,
Iñigo Serna



  reply	other threads:[~2015-08-29 22:24 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <mailman.118.1440827512.19560.help-gnu-emacs@gnu.org>
2015-08-29  7:51 ` How to use a variable from outer scope in the success function of a request call? Pascal J. Bourguignon
2015-08-29  8:34   ` Iñigo Serna
2015-08-29  9:11     ` Iñigo Serna
     [not found]   ` <mailman.126.1440837274.19560.help-gnu-emacs@gnu.org>
2015-08-29 10:31     ` Pascal J. Bourguignon
2015-08-29 22:24       ` Iñigo Serna [this message]
2015-08-29 22:01   ` Stefan Monnier
2015-08-29  0:36 Iñigo Serna

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