Good explanation of ruby object model — mainly, 'classes are objects'?

Question

I am studying the ruby object model and have some questions. I understand the idea that an object only stores instance variables, and methods are stored in the class, which an o

Answer 1

Here's my shot at one.

In Ruby, classes are objects. Usually they have class Class. For example, let's consider the class Foo.

class Foo
end

Doubtless you've seen this before, and it's not terribly exciting. But we could also have defined Foo this way:

Foo = Class.new

Just as you'd create a new Foo by calling Foo.new, you can create a new Class by calling Class.new. Then you give that class the name Foo by assigning it, just like any other variable. That's all there is to it.