Principles of Reactive Programming (opens in new tab)

(coursera.org)

215 pointssteveb12y ago47 comments

47 comments

I think this course looks like it could be a lot of fun. Erik Meijer is a great teacher with lots of enthusiasm. The introductory video makes it look like we just walked in on a particularly awkward moment, though, like they set the bench they're all sitting on down in a suspiciously bad smelling elevator car.

If you haven't see Erik Meijer's haskell course and are interested in that type of thing, check it out:

http://lambda-the-ultimate.org/node/3642

It uses this really great book by Graham Hutton called Programming in Haskell.

jcurbo12y ago

Programming in Haskell is an excellent book, I liked it a lot more than some of the usual recommendations (Learn You a Haskell, etc).

atopuzov12y ago

The course is awesome! Highly recommended.

tomku12y ago

I don't think I've ever signed up for something more quickly than when I saw this announcement pop up on Twitter. Really enjoyed the Functional Programming with Scala course when it ran last year, and I'm happy to see the sequel come to fruition.

72737412y ago

The Functional Programming class I took last year was pretty much as good as the expensive CS courses I took at Big Name U. Oh, and it happened to be taught by the guy that invented Scala. I'll admit it, I'm turning into a Coursera fanboy.

nly12y ago

Note that the Functional course is a recommended prerequisite for the Reactive one and the former runs again at the beginning of September, meaning you can do both in sequence.

1 more reply

rybosome12y ago

Fantastic! I've been wanting to learn FRP for quite some time. The fact that this is a follow-up to the awesome Scala course is a bonus.

I can't wait for this to begin. =)

EDIT: The syllabus doesn't mention any FRP libs. I'm surprised, especially as one of the professors is the author of RX. Maybe because there isn't a canonical one in Scala?

seanmcdirmid12y ago

They don't mention FRP. RX is a subset of FRP oriented around just event streams without continuous signals; think of it as FRP lite. Their actors and futures unit makes me wonder if this is also about concurrency in addition to reactivity. Nothing about state repair at all.

If Conal Elliott ever decides to teach a coursera on FRP...

tomku12y ago

One of the blog posts[1] I saw announcing it had a few more details than the course page, including a mention of RxJava.

[1]: http://letitcrash.com/post/59504788607/new-coursera-course-o...

mgraczyk12y ago

In case you didn't notice, this course is being co-instructed by Erik Meijer, creator of the fantastic reactive extensions for .NET library.

http://msdn.microsoft.com/en-us/data/gg577609.aspx http://msdn.microsoft.com/en-us/library/hh242985(v=vs.110).a...

I encourage anybody who has to write or maintain more than a few lines of C# or .NET code to check them out (and possibly take this class if it turns out to be good).

macca32112y ago

If you're into FRP in .NET, please checkout the OLINQ project on github. It lets you define LINQ queries against reactive sources and have them update themselves as the sources change, letting you do things like realtime aggregation in a couple of lines of code.

I think it's wickles.

https://github.com/wasabii/OLinq

ghc12y ago

Back when Borders was still around I stumbled upon a Functional Reactive Programming book by Paul Hudak. To this day it's still one of my favorites. If you know Haskell and don't want to learn Scala, you might enjoy this as an alternative to the course. The book is called The Haskell School of Expression: Learning Functional Programming through Multimedia.

Amazon link: http://www.amazon.com/The-Haskell-School-Expression-Programm...

thetwiceler12y ago

As far as I know, Hudak has updated and renamed his book to The Haskell School of Music, and it's available for free from the Yale Haskell Group's website here: http://haskell.cs.yale.edu/?post_type=publication&p=112

The book is a really awesome way to learn Haskell. However, very little of it is actually about FRP; there's one section about GUIs using FRP, and it doesn't go very much in depth.

fusiongyro12y ago

Pretty sure that's just a different book by the same author. "Updating" a book on graphics to make it about music instead doesn't sound like a second edition kind of maneuver.

1 more reply

joshz12y ago

Typesafe also just announced a tutoring program for this and the intro course.

http://typesafe.com/blog/announcing_typesafe_new_coursera_tu...

essentials12y ago

I haven't taken Odersky's first course, but I'm fluent in Java and Clojure. Do you guys think that would suffice or will Scala knowledge be a prerequisite?

eranation12y ago

The prerequisite course starts in about 2 weeks [1], so you can still take it if you want before Principles of Reactive Programming starts, you'll be able to see what parts you feel you can skip and which ones are useful. There are other quick introductions to Scala you can take [2],[3],[4] to get a feeling of it.

[1] https://www.coursera.org/course/progfun

[2] http://www.scala-tour.com

[3] http://scalatutorials.com/tour

[4] http://learnxinyminutes.com/docs/scala

arityfn12y ago

It starts in two months so could give Martins books a read. And I think that would be enough. Some of the lectures were based on his book and others on SICP.

oacgnol12y ago

If you're well versed in Clojure and FP principles, the only difference for you would be in picking up Scala syntax, in my opinion.

Fishkins12y ago

I'd say the type system is a non-negligible difference. Still, knowing Java and Clojure is a good foundation for learning Scala.

tokipin12y ago

you won't have trouble. that said, the first Scala course is excellent independent of its use of Scala because of its fun/challenging homework assignments

eranation12y ago

This is a follow on course to Functioal Programming with Scala, and led by Martin Odersky, Erik Meijer and Roland Kuhn. Signed up

arityfn12y ago

This is the most awkward introduction video Ive seen so far. I really enjoyed Erik's introductory course on haskell so really looking forward to this course.

modersky12y ago

Yes, sorry for the video :-) We had just 1 hour in the same place together, and that was in a hotel conference room and we were all tired from our respective conferences. We'll shoot another one when we meet next and will replace the video then.

arityfn12y ago

Cool, I got a response from Martin Odersky. I really enjoyed your course on scala :) so looking forward to this one.

jskonhovd12y ago

Signed Up!! The Functional Programming with Scala Course was very good.

lelf12y ago

Note: this is not about “FRP”

(if you don't believe me — http://www.reddit.com/r/haskell/comments/1l7ru2/principles_o...)

pohl12y ago

That's a good thing to point out. The "reactive programming" in the course title comes not from the acronym FRP but from this:

http://www.reactivemanifesto.org

theboywho12y ago

This is awesome news. I really enjoyed the Functional Programming with Scala course and can't hide my excitement for this one.

This is also interesting to me because it shows that teaching and learning does not have to be at some big name University.

ridicter12y ago

Can some explain like I'm 5 the tradeoffs between Go/Scala/JS[node.js]? I've been googlin', and there aren't enough articles that compare and contrast the three.

lobrien12y ago

Go is supposed to be a better C.

Scala is supposed to be a better Java.

JS is supposed to be popular.

EDIT: Go is intended to be a systems-programming language with an emphasis not only on runtime efficiency and concurrency, but additionally on such things as compilation speed.

Scala is intended to be a hybrid OO-functional language that is approachable by a broad class of mainstream programmers (i.e., Java programmers), with a type system considerably more sophisticated than Java. The emphasis is, I'd say, on a language that has long-term potential, at the cost of a somewhat problematic toolchain.

JavaScript's enormous advantages are that it is universally available, easy to approach, and flexible enough to support functional techniques.

gnuvince12y ago

Without being an expert on any of them:

* Go: statically typed, no type parametrization, good support for CSP-like concurrency, deeply imperative language. Proponents site its speed of compilation, simplicity, and growing community.

* Scala: statically typed, modern and sophisticated type system, supports OO and functional programming, runs on the JVM, has good concurrency support.

I really don't know enough about Node.js to say anything about it. It's Javascript, so it's dynamic typing and a mix of OO and functional programming.

Nekorosu12y ago

My only complain it's in Scala. I wish there were the same course but in Haskell.

zura12y ago

Hm, did Erik left Microsoft for Applied Duality, Inc. ?

Qerub12y ago

http://channel9.msdn.com/Forums/Coffeehouse/Erik-Meijer-is-l...

zura12y ago

Thanks, as it says, Brian Beckman has also left MS.

mattpodwysocki12y ago

Yes, but work continues on Rx with MS Open Tech and Microsoft, especially since it is open source. * Disclaimer * I am an Rx team member

j / k navigate · click thread line to collapse

47 comments

sinkasapa12y ago

If you haven't see Erik Meijer's haskell course and are interested in that type of thing, check it out:

http://lambda-the-ultimate.org/node/3642

It uses this really great book by Graham Hutton called Programming in Haskell.

jcurbo12y ago

Programming in Haskell is an excellent book, I liked it a lot more than some of the usual recommendations (Learn You a Haskell, etc).

atopuzov12y ago

The course is awesome! Highly recommended.

tomku12y ago

72737412y ago

nly12y ago

Note that the Functional course is a recommended prerequisite for the Reactive one and the former runs again at the beginning of September, meaning you can do both in sequence.

1 more reply

rybosome12y ago

Fantastic! I've been wanting to learn FRP for quite some time. The fact that this is a follow-up to the awesome Scala course is a bonus.

I can't wait for this to begin. =)

EDIT: The syllabus doesn't mention any FRP libs. I'm surprised, especially as one of the professors is the author of RX. Maybe because there isn't a canonical one in Scala?

seanmcdirmid12y ago

If Conal Elliott ever decides to teach a coursera on FRP...

tomku12y ago

One of the blog posts[1] I saw announcing it had a few more details than the course page, including a mention of RxJava.

[1]: http://letitcrash.com/post/59504788607/new-coursera-course-o...

mgraczyk12y ago

In case you didn't notice, this course is being co-instructed by Erik Meijer, creator of the fantastic reactive extensions for .NET library.

http://msdn.microsoft.com/en-us/data/gg577609.aspx http://msdn.microsoft.com/en-us/library/hh242985(v=vs.110).a...

I encourage anybody who has to write or maintain more than a few lines of C# or .NET code to check them out (and possibly take this class if it turns out to be good).

macca32112y ago

I think it's wickles.

https://github.com/wasabii/OLinq

ghc12y ago

Amazon link: http://www.amazon.com/The-Haskell-School-Expression-Programm...

thetwiceler12y ago

The book is a really awesome way to learn Haskell. However, very little of it is actually about FRP; there's one section about GUIs using FRP, and it doesn't go very much in depth.

fusiongyro12y ago

Pretty sure that's just a different book by the same author. "Updating" a book on graphics to make it about music instead doesn't sound like a second edition kind of maneuver.

1 more reply

joshz12y ago

Typesafe also just announced a tutoring program for this and the intro course.

http://typesafe.com/blog/announcing_typesafe_new_coursera_tu...

essentials12y ago

I haven't taken Odersky's first course, but I'm fluent in Java and Clojure. Do you guys think that would suffice or will Scala knowledge be a prerequisite?

eranation12y ago

[1] https://www.coursera.org/course/progfun

[2] http://www.scala-tour.com

[3] http://scalatutorials.com/tour

[4] http://learnxinyminutes.com/docs/scala

arityfn12y ago

It starts in two months so could give Martins books a read. And I think that would be enough. Some of the lectures were based on his book and others on SICP.

oacgnol12y ago

If you're well versed in Clojure and FP principles, the only difference for you would be in picking up Scala syntax, in my opinion.

Fishkins12y ago

I'd say the type system is a non-negligible difference. Still, knowing Java and Clojure is a good foundation for learning Scala.

tokipin12y ago

you won't have trouble. that said, the first Scala course is excellent independent of its use of Scala because of its fun/challenging homework assignments

eranation12y ago

This is a follow on course to Functioal Programming with Scala, and led by Martin Odersky, Erik Meijer and Roland Kuhn. Signed up

arityfn12y ago

This is the most awkward introduction video Ive seen so far. I really enjoyed Erik's introductory course on haskell so really looking forward to this course.

modersky12y ago

arityfn12y ago

Cool, I got a response from Martin Odersky. I really enjoyed your course on scala :) so looking forward to this one.

jskonhovd12y ago

Signed Up!! The Functional Programming with Scala Course was very good.

lelf12y ago

Note: this is not about “FRP”

(if you don't believe me — http://www.reddit.com/r/haskell/comments/1l7ru2/principles_o...)

pohl12y ago

That's a good thing to point out. The "reactive programming" in the course title comes not from the acronym FRP but from this:

http://www.reactivemanifesto.org

theboywho12y ago

This is awesome news. I really enjoyed the Functional Programming with Scala course and can't hide my excitement for this one.

This is also interesting to me because it shows that teaching and learning does not have to be at some big name University.

ridicter12y ago

Can some explain like I'm 5 the tradeoffs between Go/Scala/JS[node.js]? I've been googlin', and there aren't enough articles that compare and contrast the three.

lobrien12y ago

Go is supposed to be a better C.

Scala is supposed to be a better Java.

JS is supposed to be popular.

EDIT: Go is intended to be a systems-programming language with an emphasis not only on runtime efficiency and concurrency, but additionally on such things as compilation speed.

JavaScript's enormous advantages are that it is universally available, easy to approach, and flexible enough to support functional techniques.

gnuvince12y ago

Without being an expert on any of them:

* Go: statically typed, no type parametrization, good support for CSP-like concurrency, deeply imperative language. Proponents site its speed of compilation, simplicity, and growing community.

* Scala: statically typed, modern and sophisticated type system, supports OO and functional programming, runs on the JVM, has good concurrency support.

I really don't know enough about Node.js to say anything about it. It's Javascript, so it's dynamic typing and a mix of OO and functional programming.

Nekorosu12y ago

My only complain it's in Scala. I wish there were the same course but in Haskell.

zura12y ago

Hm, did Erik left Microsoft for Applied Duality, Inc. ?

Qerub12y ago

http://channel9.msdn.com/Forums/Coffeehouse/Erik-Meijer-is-l...

zura12y ago

Thanks, as it says, Brian Beckman has also left MS.

mattpodwysocki12y ago

Yes, but work continues on Rx with MS Open Tech and Microsoft, especially since it is open source. * Disclaimer * I am an Rx team member

j / k navigate · click thread line to collapse