From: Rick DeNatale <rick.denatale@...>
Date: 2008-05-04T04:23:41+09:00
Subject: Re: Why there is not "replace" method for Fixnum?

On Sat, May 3, 2008 at 3:01 PM, Iñaki Baz Castillo <ibc@aliax.net> wrote:
> El Sábado, 3 de Mayo de 2008, Gerardo Santana Gómez Garrido escribió:
>
> > >  I hope explanations like this would appear in some Ruby manual and so :)
>  >
>  > What about the Fixnum class documentation:
>  >
>  > http://www.ruby-doc.org/core/classes/Fixnum.html
>  >
>  > "Fixnum objects have immediate value. This means that when they are
>  > assigned or passed as parameters, the actual object is passed, rather
>  > than a reference to that object. Assignment does not alias Fixnum
>  > objects. There is effectively only one Fixnum object instance for any
>  > given integer value, so, for example, you cannot add a singleton
>  > method to a Fixnum."
>
>  Yes, you are completely right :)
>
>  But anyway, I think no newbie will read the doc of a integer since probably a
>  newbie will no realize of the class nature of a integer in Ruby, completely
>  different of any other language.
>  That's wahy I suggested to explain all this stuf in a Ruby manual instead of
>  core doc.

Most of the popular expositions of Ruby ("Programming Ruby" a.k.a. the
pickaxe, "Ruby for Rails", "The Ruby Programming language", e.g.) do
explain this.

Blogs are also a good source, may I have the temerity to suggest a
couple of articles germane to Ruby objects and variables:

http://talklikeaduck.denhaven2.com/articles/2006/09/13/on-variables-values-and-objects
http://talklikeaduck.denhaven2.com/articles/2008/02/08/whose-variable-is-it-anyway

-- 
Rick DeNatale

My blog on Ruby
http://talklikeaduck.denhaven2.com/