code: function hexadecimal(character) {
    var code = typeof character === 'string' ? character.charCodeAt(0) : character
  
    return (
      (code >= 97 /* a */ && code <= 102) /* z */ ||
      (code >= 65 /* A */ && code <= 70) /* Z */ ||
      (code >= 48 /* A */ && code <= 57) /* Z */
    )
  }
docs: /* Check if the given character code, or the character
  code at the first character, is hexadecimal.