In fact, it is very simple, less talk, read the following code and comments believe you will be at a glance!
Copy Code code as follows:
Declaring a class is a method, in fact, in JavaScript, namespaces, classes, members .... All objects
MyClass =function () {
var _this=this;
Private variable
var aa= "11";
Exposing variables
this.bb= "22";
Private method
function Fun1 () {
alert (AA);
alert (_THIS.BB);
}
Private method
var fun2=function () {
alert (AA);
alert (_THIS.BB);
}
Exposing 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";/Right
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;
Variables or methods declared with the This keyword are public.
All of the above is for instance classes, and for static classes that is simpler, JavaScript static class is actually a JSON object, so all its members are public, are externally visible!
Author: Uncle Xiang
Source: http://xumingxiang.cnblogs.com/
