JavaScript uses JavaScript to mimic OOP programming

First

First, define a class using the keyword function

 function Shape1 (ax,ay) {//  The function is considered to be the flag of the declaring class  var  x=0  ;  var  y=0     ;  var  init=function () {//  The constructor assigns a value to the internal variable  x=AX;    Y  =ay; }init ();  //      constructor call  this . Getx=function () {// this declaration public Function Var declaration private get method  return   X; }}

Then, the instantiation of the object + call

var shape=New Shape1 (1,2); // Instantiate alert (Shape.getx ()); // invocation of public methods

Second

static properties and Static methods

The static method in JS is on the class rather than on the object
One, for classes that use a function declaration

(1) First, a class is defined first

function person () {this. Name=" Xiao Li "};

(2) Then, add static variables to the class static method

  person.age=0;    Person.showname=function (obj) {        console.log (obj). Name)//The name at this time is the global variable under the Person object class, which requires the person object to be accessible    };

(3) Call

Person.showname (new person ());

Summary: First class, then add static members,

The person is a class that can be instantiated, and the following static members need to be instantiated. To access

Second, a class (object) without a function declaration--Simple class
(1), First a class

var a={}; // a class

(2) Adding properties to a class

a["name"]="1"; // Add Property

(3) Call

alert (a.name);

JavaScript uses JavaScript to mimic OOP programming