Why use grep if you're not returning a list?

I use grep to create the list of keys and then use map to conver the keys into key/value pairs, which I then assign to the new hash:

my %new_hash = map { $_ => $original_hash{$_} } grep {/foo/} keys %ori
+ginal_hash;

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In reply to Re: grep for hash? by Corion
in thread grep for hash? by rovf

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