Can fields from one type be combined with those of another type?

Is it possible to achieve a similar outcome as shown below?

type Info = {
  category: string
}

type Product = {
  code: string,
  ...Info
}

Resulting in the following structure for Product:

type Product = {
  code: string,
  category : string
}

Answer №1

To create a combined type, you can utilize an intersection type:

type User = Info & {
  id: number
}

Highlighted in the documentation is the concept that an intersection type merges various types into a single entity. This approach enables you to merge different types to form a new type encompassing all necessary attributes.

Answer №2

It is possible to achieve, as demonstrated in the response by jonrsharpe. Another way to enhance the type is by implementing an interface like below:

export type Information = {
  title: string;
};

export interface Client extends Information{
  identification: string;
}

const client: Client = {
  title: 'title',
  identification: 'ID'
};

Answer №3

My recent encounter with a similar issue led me to take a slightly different route:

interface Profile {
  firstName: string,
  lastName: string
}

interface User {
  id: number,
  profile: Profile
}

Although it may not be exactly what you're seeking, this is one method of combining.

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