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Re: Testing whether a list contains at least one non-nil element
From: |
Jean Louis |
Subject: |
Re: Testing whether a list contains at least one non-nil element |
Date: |
Tue, 25 Oct 2022 13:46:28 +0300 |
User-agent: |
Mutt/2.2.7+37 (a90f69b) (2022-09-02) |
* Heime <heimeborgia@protonmail.com> [2022-10-25 13:18]:
> I would like to test whether a list contains at least one non-nil element?
> If I do that, then
> I would be able to continue a loop where a non-nil element would mean that a
> match was found.
(cond ((memq nil '(1 2 nil)) (message "True, there is nil inside"))
((memq nil '(1 2 3)) (message "No, there is no nil inside"))) ⇒ "True,
there is nil inside"
--
Jean
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- Testing whether a list contains at least one non-nil element, Heime, 2022/10/25
- Re: Testing whether a list contains at least one non-nil element,
Jean Louis <=
- Re: Testing whether a list contains at least one non-nil element, Jean Louis, 2022/10/25
- Re: Testing whether a list contains at least one non-nil element, Jean Louis, 2022/10/25
- Re: Testing whether a list contains at least one non-nil element, Emanuel Berg, 2022/10/26
- Re: Testing whether a list contains at least one non-nil element, Jean Louis, 2022/10/26
- RE: [External] : Re: Testing whether a list contains at least one non-nil element, Drew Adams, 2022/10/26
- Re: [External] : Re: Testing whether a list contains at least one non-nil element, Jean Louis, 2022/10/27
- Re: [External] : Re: Testing whether a list contains at least one non-nil element, Emanuel Berg, 2022/10/27
- RE: [External] : Re: Testing whether a list contains at least one non-nil element, Drew Adams, 2022/10/27
- Re: [External] : Re: Testing whether a list contains at least one non-nil element, Jean Louis, 2022/10/27
- Re: [External] : Re: Testing whether a list contains at least one non-nil element, tomas, 2022/10/28