Iterator Blocks - cours

cours.rb

films = [
  "Le parrain", 
  "Star Wars", 
  "Mars Attack", 
  "Django"
]

films << "Les dents de la mer"

films[1] = "Star Wars La menace fantôme"


# puts films[2..3]
# p films[2..3]
# age = 28
# p "J'ai #{age} ans"
# p "J'ai " + age.to_s + " ans"

# for film in films
#   p film
# end

# for index in 0...films.size
#   p "#{index+1} - #{films[index]}"
# end

# films.each_with_index do |movie, position|
#   p "#{position+1} - #{movie}"
# end

# p films

# promo_films = films.map! do |movie|
#   "#{movie.upcase} - promo"
# end

# promo_films = films.map { |movie| "#{movie.upcase} - promo" }


# l_films_count = promo_films.count do |movie|
#   movie[0].downcase == "l"
# end

# short_films_count = films.count do |movie|
#   movie.size < 15
# end

# short_films = films.select do |movie|
#   movie.size < 15
# end

def timer
  start_time = Time.now
  yield
  time_elapsed = Time.now - start_time
end

time_taken = timer() do 
  sleep(3)
end