'use strict';

const person = { name: 'Marcus Aurelius' };

Reflect.defineProperty(person, 'born', {
  value: 121,
  writable: true,
  enumerable: true,
  configurable: true,
});

Object.defineProperty(person, 'city', {
  value: 'Roma',
  writable: false,
  enumerable: false,
  configurable: false,
});

person.born = 1917;
// person.city = 'Kiev';

console.dir({ person });