use v5.10;
use strict;
use warnings;

use Types::Standard qw( ArrayRef Str Num Int );

my $arr = [ 1, 2, 3.3 ];

if ($arr ~~ ArrayRef[Int])
    { say "ArrayRef of Int" }

elsif ($arr ~~ ArrayRef[Num])
    { say "ArrayRef of Num" }

elsif ($arr ~~ ArrayRef[Str])
    { say "ArrayRef of Str" }

[download]
package Cow { use Moo; has name => (is => 'lazy', default => sub { 'Mooington' }) } say Cow->new->name

In reply to Re: Best guess for data type by tobyink
in thread Best guess for data type by spiros

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