module StrHelperVp

# File lib/str_helper_vp.rb, line 10
def self.casify(str) 
  # randomly choose uppercase or lowercase letters returned:
  to_case = [:upcase, :downcase]
  arr = str.split('')
  arr.each_with_index do |letter, i|
    this_case = to_case.sample
    # if you have a symbol that represents a method, you can
    arr[i]= letter.send(this_case)
  end
  arr.join('')
end

# File lib/str_helper_vp.rb, line 6
def self.reversify(str)
  str.split('').reverse.join('')
end

# File lib/str_helper_vp.rb, line 22
def self.spacify(str, space=0)
  # put that many spaces between each thing
  spaces.times do
    str = str.split('').join(' ') 
  end
  str
end