rafer

# Should the contestant switch to the other door?
@switch = true
 
@wins = 0; @losses = 0
100000.times do
  # Hide the car
  car_behind = rand(3)
 
  # Contestant picks a door
  contestant_pick = rand(3)

rafer

def model_exists?(model_name)
  begin
    potential_model = model_name.constantize
  rescue NameError
    return false
  end
  ActiveRecord::Base.send(:subclasses).include?(potential_model)
end

rafer

def model_exists?
  begin
    potential_model = yield
    return ActiveRecord::Base.send(:subclasses).include?(potential_model)
  rescue NameError
    return false
  end
end

rafer

# A mixin that makes a record "seeable" by users.
module Seeable
  def self.included(base)
    base.has_many :seeings, :as => :thing
  end

  # Note that user seeing this thing (now)
  # Returns true if the user has previously seen the object, and false otherwise
  # essentially the same as doing a seen_by? before noting the new seeing.
  def seen_by!(user)

rafer

class ModelExtensionLoader
  def self.activate!
    class << ActiveRecord::Base
      alias_method :old_inherited, :inherited

      def inherited(model)
        puts "Trying to load extensions #{model} extensions"
        if extension = ModelExtensionLoader.safe_constantize("Extensions::#{model}")

          model.send(:include, extension)

rafer

Rafer Hazen: It seems like I used to be able to SSH in to their account, and now I cannot. I have a working username and password.

Harriet Anderson: I apologize for any inconvenience this has caused you.

Harriet Anderson: To protect your account from unauthorized changes, can you please verify for me the answer to the Security Question:

Harriet Anderson: What is your pet's name?

Rafer Hazen: The client never gave me that information.

rafer

# Question 2: What does the following print?

class Bob
  class << self
    puts self.name
  end
end

rafer

# Question 3. What does the following print?

p [String === "String", "String" === String]
p ["String".equal?("String"), "String".eql?("String"), "String" == "String"]

rafer

# Question 4. What does the following print

p [:a, :b][2,1]
p [:a, :b][3,1]

rafer

# Question 5. What's the output of the following?

def lambdicate
  print "A"
  lambda { return }.call
  print "B"
end

def proctify
  print "A"