roomful_of_people.rb

def ask_for_age(name)
  # We have to ask for this person's age
  print "What is #{name}'s age? "

  rand(100) # gets.chomp.to_i
end


# Roomful of People

# Ask for a comma-separated list of names
puts
puts "Who is in the room? Please separate names with commas."
puts "e.g. John, Bob, Nathaniel"

                            # gets.chomp.split(',')
names_of_people_in_room = 'John, Bob, Nathaniel'.split(',')


# We need an array (a list) to remember who is in the room
room = [] # It's empty right now



names_of_people_in_room.each do |person_name|
  puts "\n"  # Cleanup

  age = ask_for_age(person_name)

  # Display to screen
  puts age

  # This is a hash of One Person
  person = {
    :name => person_name,
    :age  => age
  }

  # Add the person to our room
  room << person
end


puts
puts "We have #{room.length} people."



# Sort the room by age

room.sort! do |a, b|
  a[:age] <=> b[:age]
end.reverse!



# Display the roomful of people
room.each do |person|
  puts # cleanup

  # Person is a Hash
  puts "* #{person[:name]} (#{person[:age]} years old)"
end