/**
 * Returns the CVNX notation of a domain name.
 *
 * @param {string} name The name of the domain (without the TLD).
 * @return The CVNX notation of the domain name.
 * @customfunction
 */
function DOMAIN_PATTERN(name) {
  const vowels = ["a", "e", "i", "o", "u"];
  const consonents = ["b", "c", "d", "f", "g", "h", "j", "k", "l", "m", "n", "p", "q", "r", "s", "t", "v", "w", "x", "y", "z"];
  const letters = name.toLowerCase().split("");
  let pattern = [];
  letters.map(letter => vowels.includes(letter) ? pattern.push("V") : (consonents.includes(letter) ? pattern.push("C") : (!isNaN(letter) ? pattern.push("N") : pattern.push("X"))));
  return pattern.join("");
}