OO for JS - 如何在JS寫面向對像?

inheritanceManager = {};

inheritanceManager.extend = function(subClass,baseClass){
    function inheritance(){};
    inheritance.prototype = baseClass.prototype;
    subClass.prototype = new inheritance();
    subClass.prototype.constructor = subClass;
    subClass.baseConstructor = baseClass;
    subClass.superClass = baseClass.prototype;
}

Person = function(id,name,age){
    this.id = id;
    this.name=name;
    this.age=age;
}

Person.prototype = {
    wakeUp : function(){
        console.log('Wake up');
    },
    getAge : function(){
        return this.age;
    }
}

Manager = function(id, name, age, salary){
    Manager.baseConstructor.call(this, id, name, age);
    this.salary = salary;
    console.log('Manager has been registered');
}
inheritanceManager.extend(Manager, Person);

Manager.prototype.lead = function(){
    console.log('Lead is great lead');
}

let p = new Person('0','andy',20,2000);
let pm = new Manager('0','andy',50,3000);
console.log(p)
console.log(pm)
console.log(p)


Person = function(id, name, age){
    this.id = id;
    this.name = name;
    this.age = age;
    console.log('A new person has been accepted');
}

Person.prototype = {
    /** wake person up */
    wake_up: function() {
        console.log('I am awake');
    },

    /** retrieve person's age */
    get_age: function() {
        return this.age;
    }
}

Inheritance_Manager = {};

Inheritance_Manager.extend = function(subClass, baseClass) {
    function inheritance() { }
    inheritance.prototype = baseClass.prototype;
    subClass.prototype = new inheritance();
    subClass.prototype.constructor = subClass;
    subClass.baseConstructor = baseClass;
    subClass.superClass = baseClass.prototype;
}

Manager = function(id, name, age, salary) {
    Manager.baseConstructor.call(this, id, name, age);
    this.salary = salary;
    console.log('A manager has been registered.');
}

Inheritance_Manager.extend(Manager, Person);

Manager.prototype.lead = function(){
   console.log('I am a good leader');
}

var p = new Person(1, 'Joe Tester', 26);
var pm = new Manager(1, 'Joe Tester', 26, '20.000');
console.log(pm);
pm.age = 10;
console.log(pm);