That's it. We've finished our lightning-fast tour of some of the
basic features of Ruby. We've had a brief look at objects, methods,
strings, containers, and regular expressions, seen some simple control
structures, and looked at some rather nifty iterators. Hopefully, this
chapter has given you enough ammunition to be able to attack the rest
of this book.
Time to move on, and up---up to a higher level. Next, we'll be looking
at classes and objects, things that are at the same time both the
highest-level constructs in Ruby and the essential underpinnings of
the entire language.