of.rb

class Integer

  # Public: Return n number of somthing as Array.
  #
  # Examples
  #
  #   foot = 5.of { Toe.new } # => [<toe>, <toe>, <toe>, <toe>, <toe>]
  #   feet = Array.new(5) { Toe.new } # => [<toe>, <toe>, <toe>, <toe>, <toe>]
  #
  def of
    (0..self-1).map { |n| yield n }
  end

end