From: Joel VanderWerf <vjoel@...>
Date: 2007-08-07T09:36:53+09:00
Subject: Re: Very weird behaviour of Ruby 1.8.6 with multi-line parenthesis expressions

Michael Hollins wrote:
> Are there any interesting uses of
> 
>    + x
> 
> as a statement on its own, or is it likely that
> it's a programmer error 99 times out 100?

Not that I'm recommending it, but just as an idea:


module Enumerable
   def +@
     inject {|s,x| s+(+x)}
   end
end

class Object
   def +x
     x
   end
end

p +[1,2,3]  # => 6

sum = +[1, [2, 3], [4.0]]

p sum       # => 10.0

-- 
       vjoel : Joel VanderWerf : path berkeley edu : 510 665 3407