From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: moasenwood--- via Users list for the GNU Emacs text editor Newsgroups: gmane.emacs.help Subject: Re: Elisp - Determine if variable is nil Date: Sat, 30 Jan 2021 15:57:33 +0100 Message-ID: <874kiyo4ki.fsf@zoho.eu> References: Reply-To: Emanuel Berg Mime-Version: 1.0 Content-Type: text/plain Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="21459"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/28.0.50 (gnu/linux) To: help-gnu-emacs@gnu.org Cancel-Lock: sha1:Wa06kLsj7mTt95PoPv/WUTmFlL0= Original-X-From: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane-mx.org@gnu.org Sat Jan 30 15:58:41 2021 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 1l5rhx-0005TX-6l for geh-help-gnu-emacs@m.gmane-mx.org; Sat, 30 Jan 2021 15:58:41 +0100 Original-Received: from localhost ([::1]:37122 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1l5rhw-00066J-9y for geh-help-gnu-emacs@m.gmane-mx.org; Sat, 30 Jan 2021 09:58:40 -0500 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:40320) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1l5rh3-000669-Cl for help-gnu-emacs@gnu.org; Sat, 30 Jan 2021 09:57:45 -0500 Original-Received: from ciao.gmane.io ([116.202.254.214]:34828) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1l5rgy-0008PV-Gu for help-gnu-emacs@gnu.org; Sat, 30 Jan 2021 09:57:41 -0500 Original-Received: from list by ciao.gmane.io with local (Exim 4.92) (envelope-from ) id 1l5rgx-0004MR-1X for help-gnu-emacs@gnu.org; Sat, 30 Jan 2021 15:57:39 +0100 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 autolearn=no autolearn_force=no X-Spam_action: no action X-BeenThere: help-gnu-emacs@gnu.org X-Mailman-Version: 2.1.23 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:127445 Archived-At: jai-bholeki wrote: > How can I check if a variable is nil? (setq some-var nil) (unless some-var (message "var is nil") ) -- underground experts united http://user.it.uu.se/~embe8573 https://dataswamp.org/~incal