Careful with that prototype, Eugene

re: Careful with that prototype, Eugene

Bertrand Le Roy — Wed, 15 Nov 2006 22:20:50 GMT

Patrick: sure, that's what we're doing in ASP.NET AJAX, see my more recent posts on prototype. In this post, I tried to keep it simple and without dependancy on AJAX.

The problem with your code if you add nothing else is that you broke the prototype's constructor by overwriting the whole prototype with a JSON object. We solve this in the AJAX Library by resetting prototype.constructor to Foo.Bar from the class registration method.

another way

Patrick J. Fox — Wed, 15 Nov 2006 19:17:02 GMT

Bertand - Thanks for your informative posts. I tired out he example and came up with a combination of the two patterns shownm above:

Foo.Bar = function() {
		this.stuff = {}
	}
Foo.Bar.prototype = {
	number: 0,
	toString: function() {
  	return "Bar #" + this.number + (this.stuff.id || "");
	}
}

Any reason why someone shouldn't code it this way?

New Microsoft ASP.NET AJAX CTP Coming Soon

inventive title — Tue, 17 Oct 2006 21:40:30 GMT

Microsoft has been hard at work on the next Microsoft ASP.NET AJAX (formerly "Atlas") CTP,

From closures to prototypes, part 2

Atlas and more — Sat, 14 Oct 2006 07:28:11 GMT

In part 1 of this post, I exposed the differences between the closure and the prototype patterns to define

Be prepared for the next MS AJAX bits

Atlas notes — Wed, 11 Oct 2006 17:52:06 GMT

It seems that the next MS AJAX preview will be very, very different from the previous CTP. Bertrand Le

re: Careful with that prototype, Eugene

Bertrand Le Roy — Wed, 11 Oct 2006 16:18:40 GMT

Craig. Read on to the next article: http://weblogs.asp.net/bleroy/archive/2006/10/11/From-closures-to-prototypes_2C00_-part-1.aspx

More info on "prototype" and "closure"

Craig Serold — Wed, 11 Oct 2006 12:01:38 GMT

Hey guys, I'm pretty green on javascript/Atlas script. do you guys have any suggested reading for learning more about the prototype and closure references you make here? Thanks!

re: Careful with that prototype, Eugene

Manuel Abadia — Mon, 09 Oct 2006 22:24:23 GMT

Bertrand: Thanks for the information. As the last release was a few months ago I'm a bit impatient to get the latests bits in my hands. The post you talk about sounds really interesting...

re: Careful with that prototype, Eugene

Bertrand Le Roy — Mon, 09 Oct 2006 18:49:39 GMT

Manuel: we're working really hard on the new CTP currently. I can't tell you when it will be ready exactly yet, but we're doing everthing we can to get that into your hands as soon as possible.

I'll make another post soon about the transition from closure to prototype, its motivations and caveats.

re: Careful with that prototype, Eugene

Garbin — Mon, 09 Oct 2006 17:46:39 GMT

Hi, I still remember that headache... I've read about this tip only in a book entirely dedicated to JavaScript. Thanks for sharing it.