From: Robert Klemme <shortcutter@...>
Date: 2006-01-21T22:20:16+09:00
Subject: Re: Basic Inheritance questions {noob alert:- pickaxe ed. 2, page 27}

2006/1/20, John Maclean <info@jayeola.org>:
> Thanks for that speedy reply. I've decided to require the within the
> child. One thing to note is that when I do require the child irb shows
> the following..
>
> cat fx/ruby/chap3/class_KaraokeSong.rb
>
> #!/usr/bin/env ruby
> require 'class_Song.rb'
>
> # test if this class has been loaded correctly
> Object.const_defined?(:Song)

This test is completely superfluous. First, you don't do anything with
the return value and second the next line will throw anyway:

> class KaraokeSong < Song
>   def to_s
>     super + " [#@lyrics]"
>   end
> end
>
> irb(main):011:0> require 'class_KaraokeSong.rb'
> => false

This just indicates that the file has been required already.

Kind regards

robert

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