So what is the distinction between a class instance variable and a class variable (ie @@name="Steve")?
On Feb 18, 1:56 pm, Frederick Cheung <[email protected]> wrote: > On 18 Feb 2009, at 18:42, Steve wrote: > > > > > Learning about instance variables and don't understand why the > > instance variable "name" in the code example below is not visible > > where as "title" is. Could someone explain this to me and why I hadto > > use the "self.get_name()" method (which I don't understand since I > > pulled it off the net) to get the value out of name? > > Classes are objects in ruby and can have instance variables, so when > you set @name = "Steve" where you have put it you're create an > instance variable on the class rather than an instance variable on a > particular instance of the class. > > Fred > > > Thanks > > ------------------------------- > > class InstanceVariables > > �...@name = "Steve" > > > def initialize() > > �...@title = "Software Eng" > > end > > > def self.get_name > > �...@name > > end > > > def get_name > > self.class.get_name # Why can't I just return @name? > > end > > > def get_title > > �...@title > > end > > > def show_vars > > puts "name: #...@name, title: #...@title" # name is not set, at least > > that I can tell. > > end > > end > > ------------------------ > > obj1 = InstanceVariables.new > > puts obj1.get_name() > > puts obj1.get_title() > > obj1.show_vars() > > ------------------------ > > Steve > > Software Eng > > name: , title: Software Eng --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/rubyonrails-talk?hl=en -~----------~----~----~----~------~----~------~--~---
