message: fix upsertSlashCommand & upsertSlashCommands
diff: @@ -336,12 +336,17 @@ export async function upsertSlashCommand(
  guildID?: string,
  ) {
  // Use ... for content length due to unicode characters and js .length handling
  - if ([...options.name].length < 2 || [...options.name].length > 32) {
  + if (
  + options.name &&
  + ([...options.name].length < 2 || [...options.name].length > 32)
  + ) {
  throw new Error(Errors.INVALID_SLASH_NAME);
  }
  if (
  - [...options.description].length < 1 || [...options.description].length > 100
  + options.description &&
  + ([...options.description].length < 1 ||
  + [...options.description].length > 100)
  ) {
  throw new Error(Errors.INVALID_SLASH_DESCRIPTION);
  }
  @@ -371,12 +376,17 @@ export async function upsertSlashCommands(
  ) {
  const data = options.map((option) => {
  // Use ... for content length due to unicode characters and js .length handling
  - if ([...option.name].length < 2 || [...option.name].length > 32) {
  + if (
  + option.name &&
  + ([...option.name].length < 2 || [...option.name].length > 32)
  + ) {
  throw new Error(Errors.INVALID_SLASH_NAME);
  }
  if (
  - [...option.description].length < 1 || [...option.description].length > 100
  + option.description &&
  + ([...option.description].length < 1 ||
  + [...option.description].length > 100)
  ) {
  throw new Error(Errors.INVALID_SLASH_DESCRIPTION);
  }
  