From: Pen Ttt <myocean135@...>
Date: 2010-09-24T13:58:43+09:00
Subject: Re: to make dot method dot method work?

please see
irb(main):018:0> [1,2,3]
=> [1, 2, 3]
irb(main):019:0> [1,2,3].size
=> 3
irb(main):020:0> [1,2,3].size.to_f
=> 3.0

how to fix my code to make it
 Mycompute.new("Abc").values
=> "Abc"
 Mycompute.new("Abc").values.up
=> "ABC"
if my code  is code1
code1
class  Mycompute
  def initialize(str)
    @str=str
   end
  def values
    @result=@str
    self
  end
   def up
     @result=@result.upcase
    end
end
i can get :
 Mycompute.new("Abc").values
=> #<Mycompute:0xb770995c @result="Abc", @str="Abc">
irb(main):034:0> Mycompute.new("Abc").values.up
=> "ABC"
if my code is code2
code2
class  Mycompute
  def initialize(str)
    @str=str
   end
  def values
    @result=@str
  end
   def up
     @result=@result.upcase
    end
end
i can get
irb(main):046:0> Mycompute.new("Abc").values
=> "Abc"
irb(main):047:0> Mycompute.new("Abc").values.up
NoMethodError: undefined method `up' for "Abc":String
  from (irb):47
  from :0
how to write code to make both of them  happen?
 Mycompute.new("Abc").values
=>"Abc"
 Mycompute.new("Abc").values.up
=> "ABC"
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