Another utility type that Typescript gives us is Pick. Pick allows us to choose what properties we want from an object to use with a new object, for example. Pick’s structure is as follows: Pick<Type, Keys>.

Example

Suppose we have the following object of type User:

const employee: User = {
    firstName: 'Tom',
    lastName: 'Smith',
    department: 'Engineering',
    position: 'Technical Lead'
}

We want to create an object which only contains a first name and last name. We will implement this using Pick in the following manner:

type FullName = Pick<User, "firstName" | "lastName">;

const userFullName: FullName = {
  firstName: 'Peter',
  lastName: 'Johnson'
};

console.log(userFullName) // {firstName: "Peter", lastName: "Johnson"}