From: John Maclean <info@...>
Date: 2006-01-04T09:43:04+09:00
Subject: Re: More on the fundamentals...

In this line of code can anyone tell me why "food" is a method? I thought that they are preceded by a dot.

    __  an array           __ the method   __ parameters for code block
   /                      /               /
  [cornflakes, yam, rice].each { |food| eat food}
                               /   \
              code block    __/     \__block args


On Tue, 3 Jan 2006 23:51:15 +0900
John Maclean <info@jayeola.org> wrote:

> Please have a look at the comments below to see that I'm understanding things correctly;
> 
> #!/usr/bin/ruby
> #Tue Jan  3 14:04:28 GMT 2006
> class Greeter
>         # a new class cllaed Greeter
>         def initialize(name) 
>                 # creating a new method called name
>                 @name = name 
>                 # we define a new @instance variable called name
>         end
>         def say(phrase)
>                 # creating a new method called phrase...
>                 puts "#{phrase}, #{@name}"
>                 # ... which uses doube quotes to substitute
>         end
> end
> 
> # say hello 
> g1 = Greeter.new("jayeola")
> g2 = Greeter.new("buddy")
> g3 = Greeter.new("vimmer")
> g4 = Greeter.new("slammer")
> # we have just created four new  (object) instances belonging to the class
> # Greeter. They can now use the instance variables that have been created
> # above
> g1.say("Hello")
> g2.say("Wotcha")
> g3.say("Ire!")
> g4.say("Elake")
> 


-- 
John Maclean
MSc (DIC)
07739 171 531