Design Pattern - Enhanced Module

design-pattern-enhanced-module.js

var Person = function(personName) {
  var age = 30;   // age will not be accessible outside of Person block
  var name = 'Yuvraj';

  function getName() {
    return name;
  }

  // This return code block is more clean than that of module pattern
  return {
    getName: getName
  }
};

var person1 = new Person()

console.log(person1.getName());  //  Yuvraj
console.log(person1.age);  // undefined