Ruby Class vs Instance Method

So, what is an instance variable and instance method?

class Album

def release_date=(date)
@release_date = date

def release_date
album =
album.release_date = 1991
# => 1991

What is a class variable and class method?

def self.countend

Well that then raises another question, what is self?

class Album
@@album_count = 4

def self.count
# You call it by writing:




A software engineering student at Flatiron School.

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Jessica Sewell

Jessica Sewell

A software engineering student at Flatiron School.

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