From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Emanuel Berg Newsgroups: gmane.emacs.help Subject: Re: Generality of defvar Date: Fri, 29 Jul 2022 17:56:44 +0200 Message-ID: <87ilnfrjyb.fsf@dataswamp.org> References: <874jz3sbvm.fsf@dataswamp.org> Mime-Version: 1.0 Content-Type: text/plain Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="2418"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/29.0.50 (gnu/linux) To: help-gnu-emacs@gnu.org Cancel-Lock: sha1:YqFOQWkZ4/j+1I0llz9z2GzvAoo= Original-X-From: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane-mx.org@gnu.org Fri Jul 29 18:11:12 2022 Return-path: Envelope-to: geh-help-gnu-emacs@m.gmane-mx.org Original-Received: from lists.gnu.org ([209.51.188.17]) by ciao.gmane.io with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1oHSa0-0000U9-1n for geh-help-gnu-emacs@m.gmane-mx.org; Fri, 29 Jul 2022 18:11:12 +0200 Original-Received: from localhost ([::1]:48168 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1oHSZz-0005YE-5j for geh-help-gnu-emacs@m.gmane-mx.org; Fri, 29 Jul 2022 12:11:11 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:53364) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1oHSME-0002qm-Hq for help-gnu-emacs@gnu.org; Fri, 29 Jul 2022 11:56:59 -0400 Original-Received: from ciao.gmane.io ([116.202.254.214]:49176) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1oHSMC-0000vs-AZ for help-gnu-emacs@gnu.org; Fri, 29 Jul 2022 11:56:58 -0400 Original-Received: from list by ciao.gmane.io with local (Exim 4.92) (envelope-from ) id 1oHSM8-0003fX-Th for help-gnu-emacs@gnu.org; Fri, 29 Jul 2022 17:56:52 +0200 X-Injected-Via-Gmane: http://gmane.org/ Mail-Followup-To: help-gnu-emacs@gnu.org Mail-Copies-To: never Received-SPF: pass client-ip=116.202.254.214; envelope-from=geh-help-gnu-emacs@m.gmane-mx.org; helo=ciao.gmane.io X-Spam_score_int: -16 X-Spam_score: -1.7 X-Spam_bar: - X-Spam_report: (-1.7 / 5.0 requ) BAYES_00=-1.9, HEADER_FROM_DIFFERENT_DOMAINS=0.249, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=no autolearn_force=no X-Spam_action: no action X-BeenThere: help-gnu-emacs@gnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Users list for the GNU Emacs text editor List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane-mx.org@gnu.org Original-Sender: "help-gnu-emacs" Xref: news.gmane.io gmane.emacs.help:138660 Archived-At: Yuri Khan wrote: >> (defvar var-name) >> (setq var-name 'var-value) >> >> instead because if you do something with that and want to >> reset it, it's enough to evaluate the second line, whereas >> if you just have the first line you tend to evaluate that >> one and if/because the variable is already set at that >> point then nothing will happen ... > > Yes, but you can press C-M-x on a (defvar var-name > 'var-value) and it will get re-set to the new value even if > the variable is already defined. So you can! I just tested and you are right. Did they change that recently? Okay then, I guess there is no point in doing (defvar var-name) (setq var-name 'var-value) anymore. -- underground experts united https://dataswamp.org/~incal