This is also what returning an empty list is for. grep is just a specialized form of map. Use map when you want to do other work as well.

grep { TEST }

map { TEST ? $_ : () }

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In reply to Re: Re: "foreach" is to "next" as "map" is to ??? by diotalevi
in thread "foreach" is to "next" as "map" is to ??? by McMahon

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