Reactive Extensions v2.0 Beta available now!

re: Reactive Extensions v2.0 Beta available now!

Simple Made Easy — Mon, 06 Aug 2012 04:42:45 GMT

I stopped reading this half way through.

I would have created a RPC server in golang before I finished reading this article.

re: Reactive Extensions v2.0 Beta available now!

David Hanson — Thu, 21 Jun 2012 14:44:33 GMT

Bart, I really do hope you didn't write this all on the plane. ;-)

Good to meet you last night.

re: Reactive Extensions v2.0 Beta available now!

James Manning — Fri, 11 May 2012 19:35:02 GMT

The entire post is awesome, but IMHO that 2x2 (single/multi and sync/async) image (under "The asynchronous programming landscape") is something that every .NET developer needs to see (seriously needs to be reposted by Soma, Zander, ScottGu, etc). I've come across multiple people that try to create a 'stream' of things with Task or the like (usually ending up with some weird collection of interdependent tasks) that would have been much better if they had just used Rx.

IMHO, many of the approaches in the past (like calling it the 'opposite of enumerable' or 'push instead of pull') were correct, but not useful in terms of getting many developers to 'grok' it. IMHO, with Task and TPL around, there's now a more viable explanation route (included in that 2x2 table) - Task is a one-time (or single-value) async thing. IObservable is instead a collection of them. If you want/need a Task but it's something that will be producing either more than one thing or a 'stream' of things, then consider observable instead.

Rx kind of has the same problem as git - massive amounts of power, but a *perceived* learning curve that keeps it from being approachable. :)

re: Reactive Extensions v2.0 Beta available now!

Slava — Fri, 30 Mar 2012 20:10:34 GMT

Please, please, dont forget about RX for JavaScript

re: Reactive Extensions v2.0 Beta available now!

Andrey — Mon, 19 Mar 2012 10:22:24 GMT

And of course after that you need to manually remove RX v1 package from nuget (or you’ll get bunch of “exists both in…” errors).

re: Reactive Extensions v2.0 Beta available now!

Bart De Smet [MSFT] — Fri, 16 Mar 2012 18:02:59 GMT

Hi Andrey,

It works on my machine :-). What version of NuGet are you running? My Package Manager Console prompt says:

Package Manager Console Host Version 1.6.21215.9133

If you unload your project, does the MSBuild definition contain something along the following lines?

<TargetFrameworkIdentifier>Silverlight</TargetFrameworkIdentifier>

<SilverlightVersion>$(TargetFrameworkVersion)</SilverlightVersion>

I'd start by checking those two things. Let me know if the problem persists.

Thanks,

-Bart

re: Reactive Extensions v2.0 Beta available now!

Andrey — Fri, 16 Mar 2012 12:58:57 GMT

Cannont install on Silverlight 5 project using “Install-Package Rx-Xaml -Pre ” :

Install failed. Rolling back...

Install-Package : Could not install package 'Rx-Interfaces 2.0.20304-beta'. You are trying to install this package into a project that targets '.NETFramework,Version=v4.0', but the package does not contai

n any assembly references that are compatible with that framework. For more information, contact the package author.

At line:1 char:16

+ Install-Package <<<< Rx-Xaml -Pre

+ CategoryInfo : NotSpecified: (:) [Install-Package], InvalidOperationException

+ FullyQualifiedErrorId : NuGetCmdletUnhandledException,NuGet.PowerShell.Commands.InstallPackageCommand

Why is it telling about .NET 4 if this is a Silverlight project (and I install it exactly on silverlight project — not on asp-hosting one).

re: Reactive Extensions v2.0 Beta available now!

Diego Guidi — Thu, 15 Mar 2012 12:00:32 GMT

great post! hHope to read something similar for RxJs 2.0 :D

re: Reactive Extensions v2.0 Beta available now!

Richard Hein — Thu, 15 Mar 2012 04:17:01 GMT

Great stuff! Good to see you blogging again, Bart! :)

re: Reactive Extensions v2.0 Beta available now!

Aggelos Biboudis — Wed, 14 Mar 2012 08:07:36 GMT

The best post. Comprehensive, complete, dense, informative. Exciting news.