function resolveArray<T>(value: T): T[] {
  if (Array.isArray(value)) {
    return value;
  }
  return [value];
}

function resolveAsArrayOrUndefined<T extends unknown | readonly unknown[]>(
  value: T | T[] | undefined | null,
): undefined | T[] {
  if (typeof value === "undefined" || value === null) {
    return undefined;
  }
  if (Array.isArray(value)) {
    return value;
  }
  return [value];
}

export { resolveArray, resolveAsArrayOrUndefined };