[Kc] subroutine parameter list

[David Nicol]

On Wed, Apr 9, 2008 at 2:39 PM, Kit Peters <popefelix at gmail.com> wrote:
> Is there some compelling reason you can't just pass your parameters as
>  a hashref?
>
>  param_test({tom => "somestring", george => "anotherstring", ref => \@array});
>
>  sub param_test {
>   my $args = shift;
>   croak "Usage: param_test($hashref)" unless ref $args eq 'HASH';
>   ....
>
>
> }

as I understand it the best practice for readability is

  param_test(tom => "somestring", george => "anotherstring", ref => \@array);

sub param_test {
   my %args = @_;
   croak <<INSTRUCTIONS unless 3 == grep { exists $args{$_}} qw/tom george ref/;
       please refer to thread on KCLUG mailing list
INSTRUCTIONS
    ...
}

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