Benny <linux / marcrenearns.de> wrote:
>  here are some possible implementations (for Object#names)
> > 
> > x = 5;
> x.names #=> ["x"]
> > (4 + 1).name 
> #=> nil

irb(main):001:0> 5.id
5.id
=> 11
irb(main):002:0> (4+1).id
(4+1).id
=> 11

martin