From: eliben@...
Date: 2006-03-12T02:18:43+09:00
Subject: attribute setters for instance variables

Hello,

The Pickaxe book presents the following example:

class Incorrect
  attr_accessor :one, :two
  def initialize
    one = 1
    self.two = 2
  end
end

obj = Incorrect.new

p obj.one
p obj.two

The first thing printed is 'nil' and not '1' since "one = 1" assigns to
a local variable of method initialize instead of the instance variable.
So far it's clear.
Now, they propose a solution: to use self.one instead of just one.
Won't be using @one simpler and also correct ? What am I missing ?

Thanks