export function calcInitials(name: string | [string, string]): string | null {
  if (!Array.isArray(name)) {
    const m = name.match(/^.*?([a-zA-Z]{1}).*?\s+.*?([a-zA-Z]{1}).*$/s);
    if (m) {
      const [_, first, last] = m;
      return first.toUpperCase() + last.toUpperCase();
    } else {
      return null;
    }
  } else {
    const [first, last] = name;
    return first.slice(0, 1).toUpperCase() + last.slice(0, 1).toUpperCase();
  }
}