Just playing around with call (from RubyTapas #35)

call.rb

class Content
  def initialize(options={})
    @notifier = options.fetch(:notifier) {
      ->(user) { puts "#{user.name}, you won!" }
    }
  end
  
  def choose_winner
    winner = User.new
    @notifier.call(winner)
  end
end

class User
  def name
    "Bob"
  end
  
  def send_sms(*args)
    puts "beboop"
  end
end


Content.new.choose_winner
Content.new(notifier: :send_sms.to_proc).choose_winner