I’m thinking of buying & reading Ruby in a Nutshell (O’Reilly, 2001),
but am concerned that it may be outdated. The stable version at the
time of publication was Ruby 1.6. Is this still worth the investment?
I’m really looking for an extremely concise, but in-depth guide to Ruby.
I own (and have read) the Pick Axe and The Ruby Way, but neither of
them are really what I want. I’m concerned with the mechanics, syntax,
and libraries, but most of the books (and lupine cartoons, however
amusing) just seem to be cursory love letters of the form “look at all
this cool stuff you can do with Ruby!” That’s great, but it’s not what
I need right now.