Random Password Generator Ruby Module

rpg.rb

module RandomPassword
  def generate
    # create a one big array of seeding data
    seed = [('a'..'z'), ('!'..'+'), (1..9), ('A'..'Z')].map { |e| e.to_a }.flatten
    # get random 16 characters from this array
    original = (0..16).map { seed[rand(seed.length)] }.join
    # just to be sure, randomize them once more
    original.split('').shuffle.join
  end
end