liaden

# before

class X
  # imperative, affects system state, depends on globals
  def self.x
    puts Config.data
  end
end

X.x

liaden

class Object
  # as inspired by bash
  def tee(*functions)
    self.tap do
      args.map { |arg| arg.call(self) }
    end
  end
end
class SomeClass

liaden

letters = "ABCDEFGHIJKLMNOPRSTUVWXYZ"
map = {}

letters.each_char.each_with_index do |c, i|
  map[c] = letters[(i+13)%26]
end

map.keys.each do |k|
 map[k.downcase] = map[k].downcase
end