var _user$address, _user$address2, _a, _a2;

var street = (_user$address = user.address) == null ? void 0 : _user$address.street;
street = (_user$address2 = user.address) == null ? void 0 : _user$address2.street;

test((_a = a) == null ? void 0 : _a.b, 1);

1, (_a2 = a) == null ? void 0 : _a2.b, 2;