Ronald Pijnacker wrote:
> Hi,
> 
> Thanks for all the feedback. Apparently I have to increase my search
> capabilities in ProgrammingRuby, because there are things documented
> that I could not find :( .

There's a reasonably good summary in chapter 1 of _The Ruby Way_.
Only a page or two as I recall, but it does have one or two items
not in the Pickaxe.

Hal