Code itself:

var person = {
  Name: "nikita",
  Age: 18,
  GENDER: "MALE"
}
Object.DefineProperty (Person, 'Age', {
  Get: Function () {
    Return this.age;
  },
  SET: FUNCTION (NAGE) {
    RETURN THIS.AGE = NAGE;
  }
});
Console.log (Person.age)
person.age = 19;
Console.log (Person.age)

Answer 1, Authority 100%

@grommash the hellscream properties functions should not operate the property itself otherwise the infinite Recursion Object.DefineProperty (Person, age ', {change the name here or use only Value instead of SET and GET, which is a special meaning Does not, it is already important or in the SET and GET themselves do not use this.age