JavaScript Advanced Article-Object-oriented features

First, create the object

1.1 Initializer

var any={name:"Some", age:ten, action:function() {   alert ( this. name+ ":" +this. age);};

1.2 Construction methods

function Some (name,age) {this. name=name; this. age= age; this. action=function() {  alert (the. name+ ":" +this. );  }} var New Some ("BB", 5); Aa.action ();

1.3 Properties

function C () {  this. Objpro = "Object Properties"; C.prototype.objpro2= "Object attribute 2";   var privateobj = "Private attribute";               = "Class attribute";

1.4 Object Methods

function C () {varfunction() {alert ("Private Method");}  This function () {alert ("Object Method");}  This function () {alert ("Object method"function() {Alert ("class method");}

Second, the package

var any={name:"Some", age:ten, action:function() {   alert ( this. name+ ":" +this. age);};

Iii. inheritance

3.1Dog or dog?

function Animal (name,age) {    }function  Dog (name,age) {    animal.apply (this  , [Name,age]);}

3.2Dog becomes animal.

function Animal (name,age) {    }function  Dog (name,age) {    animal.apply (this, [ Name,age]);}

Dog.prototype=new Animal ();

Iv. polymorphic

functionAnimal (name,age) { This. say=function(){}}functionDog (name,age) { This. say=function() {}}dog.prototype=NewAnimal ();functionCat (name,age) { This. say=function() {}}cat.prototype=NewAnimal ();functionsay () {if(AnimalinstanceofAnimal) {Animal.say ();}}

JavaScript Advanced Article-Object-oriented features