Ruby inheritance quiz

If you’re interested, here’s a quick Ruby inheritance quiz.

For some, I think the point of confusion would relate to the metaclass. This is how I understand it to work: it inserts a “virtual” class between the object and its real class, which makes the original class the superclass (or parent?), and the metaclass becomes the objects’ direct class for that instance. So the identify method hits the metaclass first because it was inserted (or attached to the object) after the object was created, and squeezed in before the Child class in the hierarchy. That’s why it [the metaclass] is able to intercept the call. I think, anyway.

Ruby is slick, readable, and fun to program, but it can be quite complex at times. If you didn’t get the “quiz” correct, stop now and learn why it works that way—it will save you troubleshooting time and make you a better Ruby programmer altogether.