"Returns true if _key_ is present in the given collection, otherwise
returns false."
For sets like #{200, 210} the values also count as keys.
On Aug 2, 10:10 am, Petr Gladkikh <petrg...@gmail.com> wrote:
> I spent hour already and can not understand what is wrong here.
>
> I want to filter collection based on a nested field of collection
> element having some value:
>
> (println pinned-ids)
> ; #{200, 210}
>
> (println (contains? pinned-ids 200))
> ; true
>
> (println (map #(.. % :field :id) new-states))
> ; (10 20 21 100 200 500 400 210) ; This collection contains both 200 and 210
>
> However no test is true
> (println (map #(contains? pinned-ids (.. % :field :id)) new-states))
> ; (false false false false false false false false)
>
> Why "contains?" return false for all elements despite that set
> pinned-ids contains some of elements?
>
> --
> Petr Gladkikh
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