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( #3333=superdoc: print w/replies, xml ) Need Help??

That the point of map. It takes a list of inputs, and produces a different list from those inputs. It does so by applying the transformation function (the block or expression) to each input, and collecting the outputs of that function.


my @uc = ( uc("abc"), uc("def") ); | v my @uc = map { uc($_) } "abc", "def";
my %h = ( "abc" => 1, "def" => 1 ); | v my %h = map { $_ => 1 } "abc", "def";

In reply to Re^3: One-liner to join keys on a two-dimensionnal hash ? by ikegami
in thread One-liner to join keys on a two-dimensionnal hash ? by Anonymous Monk

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