Getters and Setters

Here are some basic notes on getters and setters. This is my first  experience with OOP and I will try to no longer write procedural based methods and move completely over to OOP in the upcoming weeks for all exercises in order to grasp this concept in preparation for RSpec starting next week. 

But what is happening behind the scenes?

If you write:

attr_writer :age

That gets translated into:

def age=(value)
  @age = value
end

If you write:

attr_reader :age

That gets translated into:

def age
  @age
end

If you write:

attr_accessor :age

That gets translated into:

def age=(value)
  @age = value
end

def age
  @age
end