objects-closures-2.js

var makeObject = function () {
  var s = 1;
  return {
    getState: function() { return s; },
    increment: function() {
      s++;
    }
  };
};

var obj = makeObject();
console.log(obj.getState()); // 1
obj.increment();

console.log(obj.getState()); // 2