title: Kotlin: How do I get characters after "@" in a string?
body: <p>I have a string that is an email. I want to be able to get the domain part of the email no matter what the string/email is. Essentially I'm wanting to get hold of the characters after the @ part of the string. For example, for testing@kotlin.com, I'm after the <strong>kotlin.com</strong> part.</p>
  
  <p>val emailString = "hello@world.com"</p>