Object-oriented JavaScript (3): Private members and public members

In small projects for JavaScript use, just write a few function on the line. But in large projects, especially in the development of the pursuit of a good user experience of the site, such as SNS, will use a lot of javascrpt, sometimes JavaScript workload than C #, then write a bunch of function, it will appear very messy, disorganized, even a naming conflict, It's cumbersome to manage and maintain. In this case, we need to use object-oriented thinking to develop JavaScript. So let's just say:

This section refers to the private and public members of JavaScript, although JavaScript does not have the private and the publicly keywords, but it is the same sentence-as a developer we have an object-oriented mind!

Actually very simple, the nonsense to say less, read the following code and comments believe you will be at a glance!

Declaring a class is a method, in fact, in JavaScript, namespaces, classes, members .... All objects
MyClass =function () {
var _this=this;

Private variables
var aa= "11";

Exposing variables
this.bb= "22";

Private methods
function Fun1 () {
alert (AA);
alert (_THIS.BB);
}

Private methods
var fun2=function () {
alert (AA);
alert (_THIS.BB);
}

Public methods
This.fun3=function () {
alert (AA);
alert (_THIS.BB);
}
}

The test is as follows:
var mc=new MyClass ();
Mc.aa= "AA";//Error

mc.bb= "BB";//Correct

MC.FUN1 ();//Error

Mc.fun2 ();//Error

MC.FUN3 ();//correct

word : In the interior of the class

Variables or methods declared with the VAR keyword are private;

The method declared with the function keyword is private;

The variable or method declared with the This keyword is public.

All of this is for instance classes, and for static classes it is simpler, JavaScript static class is actually a JSON object, so all its members are public, are visible to the outside!

Object-oriented JavaScript (3): Private members and public members