State of the Haskell Ecosystem – February 2016

Can someone explain to me why Haskell will ever be viable as a fullstack language? I have done a few toy projects in Haskell, and it has taught me some great functional programming concepts that I now apply to other languages. But, purely functional programming seems to work 90% the time, but the other 10% is so negative it invalidates the rest.

Edit for clarification: Full Stack would be app server up. So runs a server (some sort of process/thread/worker management), server scripting is in the same language (can auth, process requests, interact with a DB, etc), and build the view (simple JSON/blob response, build html, etc). I exclude client side form this, since most of the X for client-side projects end up transpiling into JS.

> The rating of the "Educational" section still remains "Immature" until this book is out of Early Access and finally released, but once the book is out I will finally mark Haskell as having "Mature" educational resources.

I haven't read the book myself, but is the book really so good that we can go from "Immature" to "Mature" with the release of just one book? I find that to be a bit strange considering Haskell is a very complicated language; I have a hard time believing a single book (that is beginner friendly no less) could really explain everything there is to know about Haskell.

I think most people would argue that it's useful when you want your code to be very maintainable or stable.

I think right now the lack of educational materials and overall difficulty of learning it make it impractical for industry use unless you plan on only having a very small team. I don't know what 10% you are referring to but I personally find performance analysis to be a huge issue due to the laziness. I suspect this is largely due to the lack of educational materials which is why I'm a little skeptical that the release of one book will suddenly make it all okay as the article seems to suggest.

Still, I find the language itself a complete joy to use and use it almost wherever I can.

What does full stack language mean in this context?