>
> Assuming :id is the key you care about:
>
>> (filter (comp (complement (set (map :id list-b))) :id)
>> list-a)
>
>
This is almost exactly the same as the one from an earlier post here:
(remove (comp (into #{} (map key-fn list-b)) key-fn) list-a)
I'd prefer *remove* to *filter + complement*, though.
-Marko
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