From: Martin Hart <martin@...>
Date: 2004-01-19T02:40:31+09:00
Subject: Re: setting instance variable "dynamically"

On Sunday 18 January 2004 17:29, Bauduin Raphael wrote:
> I saw in the pickaxe there's a way to call methods dynamically, with
> send("method_name"):
>
> "test".send("length")  # 4
>
> What I want to do is set a variable this way. Is it possible?

class MyClass
 def initialize
  @name = "fred"
 end
end

m = MyClass.new
m.instance_eval { @name = "freda" }

var = "name"
m.instance_eval("@#{var} = 'frederick'")

the second is a bit messy - I'm sure there is an easier way :-)

Cheers,
Martin