Re: Testing whether a list contains at least one non-nil element

[Jean Louis]

* 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.

Here is the test for non nil element:

(elt (delq nil (list nil nil)) 0) ⇒ nil

(elt (delq nil (list nil 1)) 0) ⇒ 1

-- 
Jean

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