From: Stephan Mueller <d454d@...>
Date: 2005-08-07T04:41:08+09:00
Subject: Re: polymorphism and/or named parameters: the ruby way?

Hi James,

* James Edward Gray II <james@grayproductions.net> [050806 20:06]:

> We can ask for a variable number of arguments, then check for the
> various options.  Something like:
> 
> def initialize( *args )
>      if args.empty?
>          puts "no param"
>      elsif args.size == 1 and args.first.is_a? Integer
>          puts "do it like Beckham"
>      elsif args.size == 1 and args.first.is_a? String
>          puts "do it like Ronaldo"
>      else
>          raise ArgumentError, "Invalid initialization for # {self.class}."
>      end
> end
> 
> Hope that helps.

Yes, thanks a lot. Though i think i like the approach using a hash
mentioned in another post a little bit more because it can do the same as
this one plus some sort of named params. It depends on the precise
situation I guess.


Cheers,

Steph.