[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: Testing whether a list contains at least one non-nil element
From: |
Heime |
Subject: |
Re: Testing whether a list contains at least one non-nil element |
Date: |
Tue, 25 Oct 2022 19:44:55 +0000 |
Sent with Proton Mail secure email.
------- Original Message -------
On Tuesday, October 25th, 2022 at 5:25 PM, Joost Kremers
<joostkremers@fastmail.fm> wrote:
> On Tue, Oct 25 2022, Heime wrote:
>
> > 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.
>
>
> (seq-some (lambda (e) (not (null e))) mylist)
>
> or shorter:
>
> (not (seq-every-p #'null mylist))
How does your implementation (not (seq-every-p #'null mylist)) compared to
(elt (delq nil mylist) 0)
Re: Testing whether a list contains at least one non-nil element, Joost Kremers, 2022/10/25
- Re: Testing whether a list contains at least one non-nil element,
Heime <=
Re: Testing whether a list contains at least one non-nil element, Joost Kremers, 2022/10/25
Re: Testing whether a list contains at least one non-nil element, Emanuel Berg, 2022/10/26