Good. But the previous course was better.

Streams part was especially interesting.

Lecture 1.4 Monads is too abstruse.

内容不错，但老师的教学方式太差了，就知道读PPT，害得我睡着好几次

Great course, really enlightening

A little difficult but have fun.

Thought provoking exercises.

Better than the first part!

Classical in type and value

Good Course. Recommended

Actors were missing.

High quality course

Very good! ^^

too easy

V

If you're new to Scala and/or functional programming, then the material covered here will be very valuable.

However, I was fairly disappointed. Much of the coursework was pulled from the original "Functional Programming in Scala" course, as well as the "Principles of Reactive Programming" course. Indeed, there are references to material from those courses that are not actually included here, which must be a little confusing for anyone who hasn't taken those courses. The first two assignments came, respectively, from those two courses also.

There wasn't as much emphasis on architecting a functional program as I might have expected from the title. Instead, the course focused more on using functional principles when implementing computations. The coverage of functional reactive programming (FRP) was very good, but again, I would have expected more of a 30,000ft overview of how to design an application using FRP.

In short, I felt this course to be a little incoherent and disjointed.

This course was a bit of a mixed bag - some great bits and some really badly designed bits!

Seems it was originally two courses which have been mashed together, and the joins are pretty rough...

First week on Streams/Lazy Lists was great, but seemed to actually have originally been the final week of the functional programming principles course.

The circuits example was interesting, but could have done with an assignment to bed in the knowledge - the actual assignment had little bearing on this material.

The futures section was interesting, but there appeared to be some missing sections due to the course reorganisation, so it didn't flow especially well. Again, some more concrete examples and an associated assignment would have been appreciated.

Definitely a useful course, but be prepared to put up with the rough edges!

Martin Odersky's lectures are excellent as always. The first few weeks of material were excellent and very helpful--particularly the coverage of the advantages and disadvantages of mixing mutable state with functional programming. My issue with this course is the the final week's materials are patched together and seemingly incomplete--some of the videos switched to a different lecturer, who was referencing concepts not covered in the course. I was able to figure things out enough to complete the assignments, but based on the exercises in the course I wouldn't feel comfortable implementing functional reactive programming in a production environment--this was a good introduction to the concepts, but the solution in the programming assignments feels very makeshift and is not something I have a lot of trust in.

The content was pretty good, but I'm annoyed that I paid for a disjointed collection of videos that were previously available for free. This is just a pared down (worse) version of an older class, "Principles of Reactive Programming", which I started but didn't finish three years ago. The videos and assignments are the same, but some of them have been removed, so there are confusing discontinuities. Some of the videos refer to a "next lecture" or "previous lecture", which isn't included in this class. The last week of the class should have been split across multiple weeks, and I'm disappointed I never got to do an assignment on latency or futures.

That being said, I'd still recommend taking any class taught by Odersky, and I learned a fair amount.

The subject is really interesting, and some of the shown approaches really "close to the edge".

However, there is too much "cut and paste" from other courses. this makes this one difficult to follow. It has lost "coherence". The cross-references don't make any sense, and the assignments fall too short with regard to the content. I think the remake from the original "Functional Programming ___ in Scala" + "Reactive Programming" has not been as successful as it should. This new format within Coursera (everything shorter, more expensive and with less people involved) is not as good as the original one. Maybe this is the only way they can make enough money to sustain the whole... but the "more idealistic" start was far more pleasant.

The course material/presentation gets bit sloppy, particularly the secondary presenter and his slides during week 4 are confusing. And the exercises might ensure that everyone can pass and even might work as reference material for self-study, but it would have been more useful to ask for "ground up, practical implementations", instead of filling in something like five trivial lines of code per assignment. C.f. to the Functional Programming for Scala book, which is a lot more helpful towards understanding some of the concepts being elaborated here. Overall, this course seems to address a too wide audience in too little time.

Good topics, just poorly structured. I found the exercises easier than the previous module, but the lectures were worse. I ended up watching 1 lecture on week 3 and again on week 4 -- none of the other lecture content was relevant to the exercises. Would have loved a decent explanation of a Monad and their usages, but it really felt out of place in this course (no exercises on Monads).

After completing the first two courses I don't feel like I would bother with the next ones. The course content is far to academic and I would get far more from a book.

It is a good course. I took it after Functional Programming Principles in Scala. I learned new things....But..... The reason i rate 3 is that:

1) Programminng Assignments doesn't realy correspond to the Lecture material.

2) The Lecture material becomes very complicated in some Lectures because of Lack of Explanation (e.g: Lec 4.3. There are still many disambiguations of how the Prof. creates some models (again lack of explanation)

3) Too many unanswered critical questions remain in the forum!!!

Anyway it's worth your time.

I have seen reference to the previous second course on the specialization, 'Functional Reactive Programming in Scala', comparatively this one looks much easied down, I am hoping to find the excluded content on the third course. Sessions by Erik surely are a 100% pertinent and consistent within the full syllabus they were conceived for, but inserted here they break a bit the overall discourse, in my view. Got the feeling that the exercises cover only a little part of the theoretical content exposed in the lectures.

Last week's content was thrown together from various bits & parts from the Functional Reactive Programming in Scala (or whatever the name of the predecessor of this course was).

Overall, I felt that there was a lot of ground covered in a short amount of time - the course would have been better if it was longer, and week 4 material would have benefitted from being stretched into two or three weeks. Rather than reuse parts of the old course it would have been better to have new content purpose built for this course.