When you create a new function it has a "prototype" property, which
has a "constructor" property which refer to the created function:
function F(){};
F.prototype.constructor === F => true
So you will be able to get the class of an instance:
var obj = new F;
obj.constructor === F => true
When we redefine the "prototype" property of an function, their
"constructor" must be redefined too:
function G(){};
G.prototype = new F;
var obj = new G;
obj.constructor === F // true !!not good!!
G.prototype.constructor = G;
obj.constructor === G // true - ok
The special "__proto__" property is available only on Gecko engines,
and it is used to redefine the prototype chain... so it's not cross-
browser solution... my module for OOP in JS use this optimization too,
but it's not strictly necessary...
I hope this answer will help you,
Robert
On Sep 8, 4:12 pm, "[EMAIL PROTECTED]" <[EMAIL PROTECTED]> wrote:
> I have seen the new inheritance code from Alex in 1.60 rc0, and I have
> a question: I believe the following two lines code are no use at all
> method.prototype.constructor = method;
> subclass.prototype.constructor = subclass;
> constructor property is no use at all, the usage property is __proto__
> and you can not alter it in IE, is there something I do not know about
> constructor property which is also very important?
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