use strict; use warnings; use Data::Dumper; use feature 'signatures'; sub simple { # my @args = @_; print "this is simple\n"; my $variable = 1; print $variable; return; } print "hello world!\n"; my $hello = "hello"; print $hello; simple; simple(); simple('hola'); sub foo : Expose ($left, $right) { return $left + $right; } foo(); print "\n"; my @chars = map chr, qw(1 2 3); print "chars..." . Dumper \@chars; map chr, qw(1 2 30); my @meow = (2,3,2,45,43543,342,76); my @array = grep 76 => @meow;