Assigning a hash to another hash
— Kaushal ModiA hash can be assigned to a key of another hash using hash reference.
For a hash %HASH, it’s reference is obtained by \%HASH
.
In the below example, the %fruit_colors
and %veg_colors
are assigned to the %food_colors
hash.
use Data::Dumper;
my %food_colors = (
Fruits => undef,
Vegetables => undef
);
my %fruit_colors = (
Apple => "red",
Banana => "yellow"
);
my %veg_colors = (
"Green pepper" => "green",
Potato => "white"
);
print Dumper(\%food_colors);
print Dumper(\%fruit_colors);
print Dumper(\%veg_colors);
$food_colors{Fruits} = \%fruit_colors;
$food_colors{Vegetables} = \%veg_colors;
print Dumper(\%food_colors);