gistfile1.js

(function() {
  var User;

  User = (function() {

    function User(user_data) {
      this.name = user_data.your_name;
      this.email = user_data.your_email;
      this.has_facebook = user_data.has_facebook;
      this.age = user_data.your_age;
      this.ratings = {};
      console.log("<New User: " + this.name + ", " + this.email + ">");
    }

    User.prototype.get_first_name = function() {
      return this.name.split(' ')[0];
    };

    User.prototype.get_serialized = function() {
      return {
        name: this.name,
        email: this.email,
        facebook: this.has_facebook,
        age: this.age,
        ratings: this.ratings
      };
    };

    return User;

  })();

  window.User = User;

}).call(this);