In Pair§

See primary documentation in context for method key

multi method key(Pair:D:)

Returns the key part of the Pair.

my $p = (Raku => "d");
say $p.key; # OUTPUT: «Raku␤»

In X::Syntax::NegatedPair§

See primary documentation in context for method key

Returns the key of the pair that caused the error.

In role Enumeration§

See primary documentation in context for method key

An Enumeration property.

enum Norse-gods <Þor Oðin Freija>;
say Freija.key; # OUTPUT: «Freija␤»