JavaScript objects: My JavaScript Learning Path (iv) function of the object

The following example constructs a function object
function xx () {
return function yy () {};
}
var x = new XX ();
Alert (typeof x);
The following example constructs an object
function xx () {
Name= "JIANFENG008CN";
}
var x = new XX ();
Alert (typeof x);
The length, arguments, apply, and call methods of the function itself need to be used, especially when apply and call are similar to the C + + inline function, which is essentially a variant of the following implementation:
function ShowName (name) {
Alert ("Name:" +name);
}
var obj = new Object ();
Obj.fun=showname;
Obj.fun ("JIANFENG008CN");
Delete Obj.fun;
In addition, the length of the arguments and the length of the function itself need to be clearly distinguished!
Function of the execution mechanism, you can contact JS is interpreted as a language of this feature. This article links http://www.cxybl.com/html/wyzz/JavaScript_Ajax/20130311/37073.html