From: steve-humphreys@gmx.com
To: Help Gnu Emacs <help-gnu-emacs@gnu.org>
Subject: Understanding the "let" construct and the setting of variables
Date: Thu, 17 Dec 2020 01:10:06 +0100 [thread overview]
Message-ID: <trinity-5874c8ab-7034-425f-8175-8c77def9363b-1608163806460@3c-app-mailcom-bs11> (raw)
I have been writing some elisp to set the time grid in the agenda.
The discussion progressed towards the use of the "let" construct.
But, the discussion got too advanced for me to follow the different
points of view and make a decision.
This message is for showing some examples, of how to set and use variables
in a "let", because people criticise using "setq". But discussion needs
simple examples that would not overwhelm a relative beginner.
(defun timfutur ()
(interactive)
(setq tim 845)
(setq tsk 80)
(setq thr (/ tim 100))
(setq tmn (- tim (* thr 100)))
(setq tinc_mn (+ tmn tsk))
(setq tinc_hr (/ (+ tmn tsk) 60))
(setq tinc_mn (- tinc_mn (* tinc_hr 60)) )
(setq thr_futur (* (+ thr tinc_hr) 100) )
(setq tmn_futur tinc_mn)
(setq tim_out (+ thr_futur tmn_futur))
next reply other threads:[~2020-12-17 0:10 UTC|newest]
Thread overview: 50+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-12-17 0:10 steve-humphreys [this message]
2020-12-17 0:21 ` Understanding the "let" construct and the setting of variables Joost Kremers
2020-12-17 2:08 ` steve-humphreys
2020-12-17 3:12 ` steve-humphreys
2020-12-17 8:01 ` Joost Kremers
2020-12-17 8:31 ` steve-humphreys
2020-12-17 8:50 ` Joost Kremers
2020-12-17 8:10 ` Joost Kremers
2020-12-17 8:43 ` steve-humphreys
2020-12-17 8:56 ` Joost Kremers
2020-12-18 20:48 ` Emanuel Berg via Users list for the GNU Emacs text editor
2020-12-18 20:46 ` Emanuel Berg via Users list for the GNU Emacs text editor
2020-12-18 21:07 ` Jean Louis
2020-12-18 22:31 ` tomas
2020-12-18 20:39 ` Emanuel Berg via Users list for the GNU Emacs text editor
2020-12-17 2:49 ` steve-humphreys
2020-12-17 7:58 ` Joost Kremers
2020-12-17 16:55 ` Drew Adams
2020-12-17 20:11 ` steve-humphreys
2020-12-17 21:57 ` Drew Adams
2020-12-17 22:35 ` Michael Heerdegen
2020-12-18 9:01 ` tomas
2020-12-18 9:16 ` Michael Heerdegen
2020-12-18 20:55 ` Emanuel Berg via Users list for the GNU Emacs text editor
2020-12-19 2:17 ` Michael Heerdegen
2020-12-19 2:52 ` Drew Adams
2020-12-19 5:15 ` Stefan Monnier
2020-12-18 20:33 ` Emanuel Berg via Users list for the GNU Emacs text editor
2020-12-17 0:25 ` steve-humphreys
2020-12-17 0:35 ` steve-humphreys
2020-12-17 1:05 ` Joost Kremers
2020-12-17 1:20 ` steve-humphreys
2020-12-18 20:58 ` Emanuel Berg via Users list for the GNU Emacs text editor
2020-12-17 4:34 ` Jean Louis
2020-12-17 5:12 ` steve-humphreys
2020-12-19 6:06 ` Emanuel Berg via Users list for the GNU Emacs text editor
2020-12-17 7:31 ` steve-humphreys
2020-12-19 5:55 ` Emanuel Berg via Users list for the GNU Emacs text editor
2020-12-19 6:49 ` Jean Louis
2020-12-20 5:19 ` Emanuel Berg via Users list for the GNU Emacs text editor
2020-12-18 17:14 ` Emanuel Berg via Users list for the GNU Emacs text editor
2020-12-18 17:48 ` tomas
2020-12-18 15:33 ` Emanuel Berg via Users list for the GNU Emacs text editor
2020-12-18 18:12 ` Jean Louis
2020-12-18 18:20 ` Drew Adams
2020-12-18 18:45 ` Jean Louis
2020-12-18 19:16 ` Drew Adams
2020-12-18 20:00 ` Jean Louis
2020-12-18 21:27 ` Christopher Dimech
2020-12-19 6:23 ` Emanuel Berg via Users list for the GNU Emacs text editor
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