CODEWITHSUNDEEP
perl
xyz6675
xyz6675

Reputation: 365

Perl how to see all fields

I was looking at some code which looks like the following --

foreach my $name (@places{$${newones}}) {
  my $item = $$name{item};
  my $temp = $$name{temp};
}

I wanted to know which other fields are there like $$name{temp}, $$name{item}, how can I print all of that?

Upvotes: 0

Views: 235

Answers (1)

Håkon Hægland
Håkon Hægland

Reputation: 40758

To print the other keys and values of the hashref $name you can do something like:

use feature qw(say);
use strict;
use warnings;

my $place = "place";
my $newones = \$place;
my %names = (item => "item_value", temp => "temp_value");
my %places = (place => \%names);
for my $name (@places{$${newones}}) {
    for my $key (keys %$name) {
        say "$key = $$name{$key}";
    }
}

Output:

temp = temp_value
item = item_value

Upvotes: 1

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