getSubdomain

Callable

• getSubdomain(name: string, apexName: string): null | string

---

• Gets the subdomain from a domain name.

  @example

  getSubdomain('sub.example.com', 'example.com'); // 'sub'
  getSubdomain('example.com', 'example.com'); // null
  getSubdomain('www.example.com', 'example.com'); // 'www'