i've found named parameters extremely helpful. in fact, perl 5.008 has made them even better, thanks to locked hashes (the pseudo-hash replacement.) enter Hash::Util...

#/usr/bin/perl
use strict;
use warnings;
$|++;

require 5.008;
use Hash::Util;

my %hash= (
    one => undef,
    two => 2,
    three => 'abc',
);

Hash::Util::lock_keys( %hash );

print $_,$/ for keys %hash;

## causes runtime error
$hash{add}= 'yes';

[download]

now i can both provide default values in my modules or subroutines, and automatically handle errors when extraneous parameters are passed. also, specific keys can be locked, so you can create a hash of constants.

that allows me to delete all my code like

defined $hash{$key} 
    or die $key, ' is not valid';

[download]

because Hash::Util::lock_hash handles it for me! aah, Hash::Util.

~Particle *accelerates*

In reply to Re: passing subroutine args as a hash: why not? by particle
in thread passing subroutine args as a hash: why not? by Willard B. Trophy

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":


  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.