let person = { first_name: "Jan", surname: "Kowalski", year_of_birth: 1978, work: "Kierowca", };
Wybierz dwa poprawne zapisy z poniższych:
- person.surname;
- person[surname];
- person[“surname”];
- surname;
let person = { first_name: "Jan", surname: "Kowalski", year_of_birth: 1978, work: "Kierowca", };
Wybierz dwa poprawne zapisy z poniższych: