code: function alphabetical(character) {
    var code = typeof character === 'string' ? character.charCodeAt(0) : character
  
    return (
      (code >= 97 && code <= 122) /* a-z */ ||
      (code >= 65 && code <= 90) /* A-Z */
    )
  }
docs: /* Check if the given character code, or the character
  code at the first character, is alphabetical.