elcortez

def better_acronymise(string)
  return string.split.map { |word| word[0].upcase}.join
end

p better_acronymise("Frequently Asked Question")
puts better_acronymise("Frequently Asked Question") == "FAQ"
p better_acronymise("Bois d'Arcy")
puts better_acronymise("Bois d'Arcy") == "BD"
p better_acronymise(" Hello World ")
puts better_acronymise(" Hello World ") == "HW"

elcortez

def encrypt(text)
  alphabet = ("A".."Z").to_a

  text.split(' ').map do |word|
    word.split('').map do |letter|
      position = alphabet.index(letter)
      new_position = position - 3
      alphabet[new_position]
    end.join('')
   end.join(' ')

elcortez

def beautify_name(first_name, last_name)
  full_name = "#{first_name.capitalize} #{last_name.upcase}"
  yield(full_name)
end

message = beautify_name("john", "lennon") do |full_name|
  "Greetings #{full_name}, you look quite fine today!"
end

puts message # => "Greetings John LENNON, you look quite fine today!"

elcortez

def something_slow
  time = Time.now
  puts "I am doing something slow"
  yield
  puts "Elapsed time : #{Time.now - time}"
end


something_slow { sleep(2) }
something_slow { sleep(1) }

elcortez

musicians = [
  'Jimmy Page',
  'Robert Plant',
  'John Paul Jones',
  'John Bonham'
]

# SELECT
begins_with_r = musicians.select { |musician| musician.start_with?("R") }

elcortez

def acronymise(string)
  # look for first letter in each word
  # concatenate in a string
  # upcase
  # return value
  acronym = ""
  string.split(" ").each do |word|
    acronym += word[0].upcase
  end
  return acronym

elcortez

def game_refacto
  game_logic = { 'rock' => 'scissors', 'paper' => 'rock', 'scissors' => 'paper' }
  options = game_logic.keys
  computer_input = options.sample

  puts "#{options.join(', ')}?"
  player_input = gets.chomp.downcase

  win = "You win! Computer input was #{computer_input}"
  lose = "You lose! Computer input was #{computer_input}"

elcortez

def game
  # create an array [rock, paper, scissors]
  options = ["rock", "paper", "scissors"]
  # create a random input
  computer_input = options.sample

  puts "Rock, paper, scissors?"
  player_input = gets.chomp.downcase

  # create player's input