Re: Trudging along the learning perl path.

[duyet]

use strict;
use warnings;

# CPAN packages
use Data::Dumper;

my @array = (29,24,0,24,24,12,0,10,10,19,17,15,13,1,12,12,24);
my %hash1;
# slice
@hash1{@array} = undef;
my @uniq1 = sort keys %hash1;
print 'uniq1 = ' . Dumper \@uniq1;

# map
my %hash2 = map { $_ => 1 } @array;
my @uniq2 = sort keys %hash2;
print 'uniq2 = ' . Dumper \@uniq2;

Output:

uniq1 = [
  '0',
  '1',
  '10',
  '12',
  '13',
  '15',
  '17',
  '19',
  '24',
  '29'
]

same for uniq2

There are many ways to archive something with Perl, as Slices and map are shown above. And there are more as shown in other posts ...

As you are starting to learn Perl (and any other programming languages), it is always painfull in the beginning!!! Get a book, learn the basic, follow online tutorials, and keep execise ... and it will get easier and easier ...