Discussion on: Daily Challenge #3 - Vowel Counter

[moreginger]

Haxe

static function vowels(s:String):Int {
  var vowels = 0;
  for (i in 0...s.length) {
    switch (s.charAt(i)) {
      case 'a' | 'A' | 'e' | 'E' | 'i' | 'I' | 'o' | 'O' | 'u' | 'U':
        vowels++;
    }
  }
  return vowels;
}

iterators library looked useful but you can't fold an iterator, only an iterable, disappoint.