JavaScript MVVM frameworks?

[ArielBH]

I have heard of 2 JavaScript MVVM frameworks:
1. Knockout: http://knockoutjs.com/
2. Backbone.js: http://documentcloud.github.com/backbone

What else is out there?
Have you used them?
Do we even need MVVM on the JS side?

[AdarWesley]

Hi Ariel,

Microsoft ASP.NET 4.0 AJAX prerelease included a greate implementation
of a templating engine.
This templating engine looks similar in pricipal to the Knockout
framework you point to, however,
I found it to be much more complete than anything else out there. It
brought the development
model for a web application to be very similar to developing a SL
application, developing HTML only
as a Template and then Binding data at the client. The binding
supported full two-way binding
with support for Observable Objects and Arrays.

Sadly, this amazing framework was discontinued just before the release
of ASP.NET 4.0.

Microsoft Web Devs are contributing now to JQuery to develope a
similar functionality
under the umbrela of the JQuery framework.

Check out advances of this effort in the jquery-tmpl plugin and jquery-
datalink plugin.
These two plugins together offer a similar functionality to what
Knockout is offering, however,
my initial feeling is that the JQuery implementation is not mature
enough.
I must say I didn't have a chance to actually play with Knockout, just
looked the home page
and documentation.

---
Adar Wesley

[Ariel Ben Horesh]

Adar,

Cool, Thanks for sharing.

Perhaps someone from the asp.net team will be able to elaborate on this.

Any more opinions?

Ariel

--
Ariel Ben Horesh

[nikhilk]

Indeed the ASP.NET Ajax framework (aka Atlas) was heavily inspired by
some of the concepts from WPF/XAML and data-binding. It didn't fare as
well ... I think there were a couple of key lessons there:
- Full-fledged client-apps weren't yet the common thing that require a
full-fledged client-side framework ... these are becoming more common
now however.
- A slightly more incremental pattern might have fared better (rather
than the whole xml-script approach).

[spboyer]

An alternative to the MVVM js libraries out there, I found
javascriptmvc.com to be an interesting approach.

[EisenbergEffect]

There aren't a lot of MVVM frameworks out there for Javascript. The
reason being that MVVM requires databinding, which is not a native
part of the platform. Most of the frameworks tend to be MVC-based or
very similar to it. Knockout is the main exception.

[yaniv]

Do you know anyone using Knockout ? (http://knockoutjs.com)
I looked at their demos and it was, sorry for the word, but lame...

[ArielBH]

Yaniv, what did you find lame? if it's the demo than it makes sense as
it is very simple but MVVM is just a pattern, you can upscale it for
far more complicated scenarios, usually by doing composition.

[yaniv]

I guess it is a matter of expectations
Yes, it is a pattern you can build on top of...
But I do not see how it helps me. it looks like it's just in the way
and provides nothing powerful enough for me to use
Did you use it Ariel ? Do you know of anyone who did ?

[Maxim T]

Hi.

Look at this new framework https://github.com/BBGONE/jRIApp, it is MVVM and much better than old frameworks.

And better to watch demo on youtube what is possible with it.

http://youtu.be/CxWcC2O8u-k

воскресенье, 30 января 2011 г., 23:20:47 UTC+4 пользователь ArielBH написал: