config/initializers/strings.rb

gistfile1.txt

class String
  def map(arg=nil)
    if arg
      [self].map(arg)
    elsif block_given?
      [self].map{|i| yield(i)}
    else
      [self]
    end
  end
  def cycle(num)
    to_a.cycle(num)
  end

  def to_a
    self.split('')
  end
end