anonymous array and hash

my @skipper_with_name;
{
  my @skipper = qw(blue_shirt hat jacket preserver sunscreen);
  @skipper_with_name = ('The Skipper', \@skipper);
}

We can create such a value directly using the anonymous array constructor, which is yet another use for square brackets:

my $ref_to_skipper_provisions =
  [ qw(blue_shirt hat jacket preserver sunscreen) ];

The square brackets take the value within (evaluated in a list context); establish a new, anonymous array initialized to those values; and (here's the important part) return a reference to that array.

my @skipper_with_name = (
  'The Skipper',
  [ qw(blue_shirt hat jacket preserver sunscreen) ]
);

 if we have this syntax:

my $fruits;
{
  my @secret_variable = ('pineapple', 'papaya', 'mango');
  $fruits = \@secret_variable;
}

we can replace it with:

my $fruits = ['pineapple', 'papaya', 'mango'];

my %gilligan_info = (
  name     => 'Gilligan',
  hat      => 'White',
  shirt    => 'Red',
  position => 'First Mate',
);

my %skipper_info = (
  name     => 'Skipper',
  hat      => 'Black',
  shirt    => 'Blue',
  position => 'Captain',
);

my @crew = (\%gilligan_info, \%skipper_info);

my @crew = (
  {
    name     => 'Gilligan',
    hat      => 'White',
    shirt    => 'Red',
    position => 'First Mate',
  },

  {
    name     => 'Skipper',
    hat      => 'Black',
    shirt    => 'Blue',
    position => 'Captain',
  },
);