Raku Books / Perl 6 at a Glance / Operators / Other infix operators

min, max

min and max return, correspondently, the minimum and maximum value of their operands.

say 20 min 10;         # 10
say 'three' max 'two'; # two (sorted alphabetically)

?? !! is the ternary operator. It works as its counterpart ? : in Perl 5. The characters are doubled to avoid the mixture with infix operators ? and !, which change the context of their operands.

say rand < 0.5 ?? 'Yes' !! 'No';

= assigns a value to a variable.

=> creates an object of the Pair type. The Pair is a “key; value” combination, like those used in hashes. In the code, it is not always necessary to quote the key values.

my $pair = alpha => "one";

my %data = jan => 31, feb => 28, mar => 31;

, creates a List object. Note that this operator, as a few mentioned above, can be chained to accept more than two operands.

my $what = (1, 2, 3);
say $what.WHAT; # (List)

The comma is also used as a separator of parameters passed to the subroutine.

To create an empty list, use a pair of parentheses ().

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