From: Mr Pinto <mrpinto@...>
Date: 2006-08-12T18:40:34+09:00
Subject: Re: newbie question: how to create variable

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On Aug 11, 2006, at 12:55 PM, Robert Klemme wrote:

> Karel Michek wrote:
>> Hi,
>> how to create variable in the method that accepts string as name  
>> of the variable and the object? Something like this:
>> class InterpreterCallback     def set_object(name, value)
>> #do something here
>
> instance_variable_set("@#{name}", value)
>>     end
>> end
>> $callback = InterpreterCallback.new()
>> $callback.set_object("var", 3)
>> puts var
>>>>> 3

Depending on what you're trying to do, you might be able to use a  
simple eval statement:
irb(main):001:0> name="var"
=> "var"
irb(main):002:0> value="3"
=> "3"
irb(main):003:0> eval "#{name} = value"
=> "3"
irb(main):004:0> var
=> "3"


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