Get the format of the fields in a Typescript class

Question

I am implementing an application with Typescript and I have created a class with the following fields:

export class Car {
   name: string;
   model: string;
   year: number;
   saleDate: Date;
   seller: User;
}

Now I create an instance of that class in this way:

var myCar = new Car();

Can I go through the fields of the class and get the format of each one? It would be something like this (but it does not work):

for(var field in myCar) {
   console.log(typeof field);
}
// console result (it does not work):
// string
// string
// number
// Date
// User

This case actually always returns 'string'. It makes sense, the key is really the name of the field, not the field itself.

Greetings.