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Passing Hashes to Subroutines in Perl
When you supply a hash to a Perl subroutine or operator that accepts a list, then the hash is automatically translated into a list of key/value pairs. For example −
Example
#!/usr/bin/perl
# Function definition
sub PrintHash {
my (%hash) = @_;
foreach my $key ( keys %hash ) {
my $value = $hash{$key};
print "$key : $value\n";
}
}
%hash = ('name' => 'Tom', 'age' => 19);
# Function call with hash parameter
PrintHash(%hash);Output
When the above program is executed, it produces the following result −
name : Tom age : 19
Updated on: 29-Nov-2019
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