Does Typescript support “subset types”?

Question

Let\'s say I have an interface:

interface IUser {
  email: string;
  id: number;
  phone: string;
};

Then I have a function that expects a

Answer 1

You can declare some or all fields as optional fields.

interface IUser {
  email: string; // not optional
  id?: number; // optional 
  phone?: string; // optional
};