module StringExample

# File lib/string_example.rb, line 9
  def self.casify(str)
    to_case = [:upcase, :downcase]
    arr = str.split('')
    arr.each_with_index do |letter, i|
      this_case = to_case[rand(2)]
      arr[i] = letter.send(this_case)
  end
  arr.join('')
end

# File lib/string_example.rb, line 5
def self.reversify(str)
  str.split('').reverse.join('')
end

# File lib/string_example.rb, line 19
def self.spacify(str, spaces = 0)
  new_string = str
  spaces.times do
    new_string = new_string
      .split('')
      .join('')
  end
  new_string
end