simple example of how re-shape an object definition in typescript

00_typescript_utilities_references.md

• TypeScript Playground example

• Make the TypeScript interface partially optional/required

typescript_optional.ts

/*
  Useful references:
    https://www.typescriptlang.org/docs/handbook/utility-types.html

    https://github.com/piotrwitek/utility-types
*/

export type Optional<T extends object, K extends keyof T = keyof T> = Omit<
  T,
  K
> &
  Partial<Pick<T, K>>;

typescript_re-shape_object-type.ts

/*
    example of how to re-shape an object definition redefined the required and optional attributes

    using the utilities types
    https://www.typescriptlang.org/docs/handbook/utility-types.html
*/
interface IPerson {
  id: string;
  name: string;
  age: number;
  nationality: string;
}

type IPersonRequiredFields = Required<Pick<IPerson, 'id' | 'name'>> & Partial<Omit<IPerson, 'id' | 'name'>>;

const me: IPersonRequiredFields = {
  id: "123",
  name: "It's Me Mario",
  age: 30
}