Perl 6 Deep Dive

Pair creation operator

The => operator creates pairs. It takes the left operand as the key and the right operand as the value.

my $pair = 'key' => 'value';

The type of the created object is Pair.

With the => operator, the key may not be quoted if it passes the restrictions for identifiers in Perl 6. Consider the following example:

my $pair1 = alpha => 1;my $pair2 = beta => 2;