“As Ricky Ricardo once said to Lucy…I gotta go to a meta…(meeting)..”

Notes on meta-programming

Notes on metaprogramming.

• Ruby class are just runnable code, meaning the interpreter will run them even it not instantiated.
• classes can be opened anytime and changed or added to.

• in ruby there is NO connection between instances and instance variables. Meaning that if you don’t use an instance variable, say in a method in an instantiated class, it won’t contain the variable. But of course it can spring up of you use it.

• an object’s instance variables live in the object itself, and an object’s methods live in the object’s class. That’s why objects of the same class share methods but don’t share instance variables.