How can i add a property to an inner Object in Typescript with spread operator?

Issue

I have following Object

let car = { year: 2004, type: {name: "BMW"} }

Now i want to add a property to inner object "type". I want to to this with the spread operator, since i need a new object, because the existing is an immuteable state object. The result should be:

{ year: 2004, type: {name: "BMW", modell: "3er"}}

How can i do this?

Solution

const car = { year: 2004, type: {name: "BMW"} };
const modifiedCar = {...car, type: {...car.type, modell: "3er"}};

Answered By - chelmertz