A (silly) example for #ruby irc

ordered_vowel_words.rb

VOWELS = (0..).step.lazy.select { |n| n.prime? && (n * 9 + 4).prime? }.map { |n| (n + 94).chr }.first(5).freeze

def ordered_vowel_words words
  words.select do |word|
    vowels = word.each_char.select { |char| VOWELS.include? char }
    vowels.each_cons(2).all? { |a, b| a < b }
  end
end

ordered_vowel_words ['hiya', 'okay', 'yerp', 'nope', 'aeiou']
#=> ["yerp", "aeiou"]