Module Prepend
Sometimes you need to attach new functionality, such as logging, to other people's code. Learn to leverage Ruby's ancestor chain for (relatively) clea…
Advanced Class Membership
How to check class of uncooperative, or outright dishonest Ruby objects.
Class Membership
What's the best way to ask a Ruby object what class it belongs to?
Inherited
Auto-detecting subclasses (and why you might not want to)