Objects · easy

6. Optional Properties

Properties that may or may not exist.

Update `User` to have an optional `email`. `format(user)` should return 'name <email>' if email exists, else just 'name'.

Required in your answer: email?user.email

Transpiled, then run in a sandbox

interface User {
  name: string;
  // TODO
}
function format(user: User) {
  // TODO
}

Output appears here.