From: Julian Snitow <vangczung@...>
Date: 2003-06-02T09:21:53+09:00
Subject: Re: Advantages of Symbols over constants

On Mon, 02 Jun 2003 00:13:21 +0900, John Johnson wrote:

> One of my concerns with symbols is they spring into exsistence on their own,
> ie.
> 
> def foo(op)
>     case op
>     when :Bar
>         puts "Bar"
>     else
>         puts "a bug!"
>     end
> end
> 
> foo(:bar)

def foo(op)
  case op
    when :Bar
      puts "Bar"
    else
      fail "Unrecognized symbol :#{op}"
    end
end

foo(:Bar)
foo(:bar)

Voila!  It is now a non-issue.

Cheers,
Julian