module StringWorkTutterback

# File lib/string_work_tutterback.rb, line 8
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
end

# File lib/string_work_tutterback.rb, line 4
def self.reversify(str)
  str.split('').reverse.join('')
end

# File lib/string_work_tutterback.rb, line 17
def self.spacify(str, spaces = 0)
  new_string = str
  spaces.times do
    new_string = new_string.split("").join(" ")
  end
  new_string
end