how set a type in a destructured object in typescript code example

Example 1: typescript object destructuring

// declare an interface or a type
interface Person {
  name: string;
  age: string;
}

// destructure name and age from `obj` variable.
const { name, age }: Person = obj;

Example 2: array destructuring typescript type

function f([a,b,c]: [number, number, number]) {

}