in reply to map sub to list?

the canonical way is

  DB<100> sub f { return $_ + 1 };

  DB<101> map f, 1..3
 => (2, 3, 4)

  DB<102> map &f, 1..3
 => (2, 3, 4)

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Cheers Rolf

( addicted to the Perl Programming Language)

In Section Seekers of Perl Wisdom