Implement multicast events and attribute settings/readers in JavaScript

I did an interesting experiment. On the Internet, most of them use functions (like person. getName () and person. setName. Of course, this is a general method. But in a non-IE browser, you can try to run the following code: viewsourceprint? FunctionPerson () & nbsp; {& nbsp

I did an interesting experiment. On the Internet, most of them use functions (like person. getName () and person. setName. Of course, this is a general method.

But in a non-IE browser, you can try to run the following code:

View sourceprint? Function Person ()

{

Var _ name

, _ Age, _ sex;

Var _ nameChanged = new Array ();

This. _ defineGetter _ (NameChanged, function ()

{

Return _ nameChanged;

});

This. _ defineSetter _ (NameChanged, function (value)

{

_ NameChanged. push (value );

});

This. _ defineGetter _ (Name, function ()

{

Return _ name;

});

This. _ defineSetter _ (Name, function (value)

{

If (this. NameChanged! = Null)

{

For (var f in _ nameChanged)

{

_ NameChanged [f] (value );

}

}

_ Name = value;

});

This. _ defineGetter _ (Age, function ()

{

Return _ age;

});

This. _ defineSetter _ (Age, function (value)

{

_ Age = value;

});

}

Person. prototype =

{

Get Sex ()

{

Return _ sex;

},

Set Sex (value)

{

_ Sex = value;

}

};

Var person = new Person ();

Person. NameChanged = function ()

{

Alert (Event 1 );

}

Person. NameChanged = function ()

{

Alert (Event 2 );

}

Person. Name = Treenew;

Person. Age = 22;

Person. Sex = Man

Alert (The + person. Name + Age is + person. Age +. The Sex Value is + person. Sex );

Alert (person. _ sex); // undefined

Therefore, it is elegant to use javascript to implement attributes and events in the object-oriented model. But do you have any idea about multicast events?