loopy3.rb

class Title

  attr_reader :string
  def initialize(string)
    @string = string
  end

  def fix
    # A neat Ruby trick for making an array of strings
    # Equivalent to: ['a', 'and', 'the', 'of']
    articles = %w{a and the of}

    word_array = string.downcase.split(" ")
    title_array = []

    word_array.each_with_index do |word, index|
      if articles.include?(word)
        title_array << word
      else
        title_array << word.capitalize
      end
    end
    title_array.first.capitalize

    title_array.join(" ")
  end
end