var peopleJson = [

  {

     "name": "Alice",

     "age": 28

  },

  {

     "name": "Bob",

     "age": 33

  }

];

​

var people = [];

​

var Person = (function () {

    function Person(person) {

        this.person = person;

        this.name = person.name;

        this.age = person.age;

    }

    Person.prototype.introduce = function () {

        return "My name is " + this.name + " and I am " + this.age + " years old.";

    };

    return Person;

})();

​

​

for (var i = 0, len = peopleJson.length; i < len; i++) {

  people.push(new Person(peopleJson[i]));

  console.log(people[i].introduce());

}

​

console.log(Object.prototype.introduce);