JavaScript writing: The writing of JavaScript classes

Source: Internet
Author: User
Tags object variables return static class access

A function in JavaScript is a class that uses this to set the public member variables and methods of a class, such as:
function MyClass (name) {
var str = "private string"; Private field
function Privatefn () {//private method alert (str);
}; = name;
THIS.PUBFN = function () {
Privatefn (); Call Private method
Create an object with new when used:
var obj = new MyClass ("123");
var name =; Access public field
OBJ.PUBFN (); Call public method
The above is the most common type of JavaScript, the actual application is less, the most used is written in the form of static class, JavaScript static class has two ways:
1. Writing like a JSON object
var MyClass = {
Name: "123",
Pubfn:function () {
Alert ("Pubfn1 is called");

Call form:, MYCLASS.PUBFN ()
This style of writing makes the members of the class have access to public.
2. The writing of anonymous function
var myclass = function () {
var name = "123"; Private field
var privatefn = function () {//private method
alert (name);
return{//return public field and method
Name: "Hello" + Name,//public field
Pubfn:function () {
Privatefn (); Call Private method
Alert ("This is a returned function"); Public method
The advantage of this approach is that private and shared member methods and variables can be separated, and the actual application can be written in a complex logical private method, while return a common interface calls the private method.
Call form: MyClass. Name, MYCLASS.PUBFN ()
Note the parentheses at the end of the class, which is the function of creating objects, removing parentheses, and calling the form: MyClass (). Name, MyClass (). PUBFN ().
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