Do not turn the following in unless you're prepared to explain things.

#!/usr/bin/perl

use strict;
use warnings;

# Effect a "join" with ", "
local $"=', ';#"
# Use the baby cart so we can call even / odd within quotes to exploit
+ $"
print "@{[even(1,2,3,4)]} are even\n while @{[odd(1,2,3,4)]} are odd\n
+";
exit;

# Note the use of prototypes so we can pass the list and the desired r
+emainder without flattening
sub EvenOrOdd (\@$) {
    my ($numbers,$remainder)=@_;
    return grep { $_ % 2 == $remainder } @$numbers;
     };

sub even {
    EvenOrOdd(@_,0);
     };
sub odd {
    EvenOrOdd(@_,1);
     };

[download]

In reply to Re: Subroutine Even/Odd by clueless newbie
in thread Subroutine Even/Odd by perlguru22

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