How to specify a declared interface as the type of Map? [duplicate]

Question

There was a problem studying the typescript.

How to specify a declared interface as the type of map?

exmaple code)

interface User {
  id: number;
  name: string;
  age: number;
  house: {
    id: number;
    address: string;
    ...,
    ...
  }
  ...,
  ...
}


const userMap = new Map<User>();  // a different motion than expected...

Answer 1

Map Generics require either 0 or 2 parameters.

If you want the value of the Map to be the User interface, and assuming you want a string as the key, you can do as follows:

const userMap = new Map<string, User>();