From: ts <decoux@...>
Date: 2004-05-31T23:15:43+09:00
Subject: Re: variable -- set value

>>>>> "o" == orbit  <orbit@klientsky.ru> writes:

o> Whot can I set value for variable which name cosist ather variable?
o> var1 = "@var2"


 Well, if you have the name of an instance variable you can use
 #instance_variable_{set,get} (with 1.8) to retrieve, or set, its value 

svg% cat b.rb
#!/usr/bin/ruby
class A
   def initialize(val)
      @a = val
   end
end

a = A.new(12)
p a.instance_variable_get("@a")
a.instance_variable_set("@a", 24)
p a.instance_variable_get("@a")
svg% 

svg% b.rb
12
24
svg% 



Guy Decoux