Paul Lutus wrote:
> Eero Saynatkari wrote:
>
>   
>> Is it possible to change NilClass#to_s to return "nil"
>> rather than "" since "" != nil?
>>     
>
> #!/usr/bin/ruby -w
>
> class NilClass
>   def to_s
>     return "nil"
>   end
> end
>
> p nil.to_s
>
> "nil"
>
> You may not want to do this. There might be a reason for the present
> behavior. But it is very easy to do, as are all such changes in Ruby.
>
>   

I don't know what the real reason is, but it can be very useful when 
interpolating strings to have it be ""

-Justin