Ruby Language Fundamentals & OOP Object Model

Ruby: Everything is an Object!

# Methods and Blocks
5.times do |i|
  puts "Step #{i + 1}: Learning Ruby on Rails!"
end

# Class Definition
class Course
  attr_accessor :title, :is_free

  def initialize(title, is_free = true)
    @title = title
    @is_free = is_free
  end
end