Last year I was excited about Elm, this year about Reason. I follow a bunch of Reason folks on Twitter and see lots interesting projects. I also keep seeing React core devs keep dropping hints that React will be rewritten in Reason which makes sense since originally it was written in SML.
Since hearing about it we have a port of a large project in progress and whilst the typing is nice, the improvement in build time alone looks like making it a worthwhile exercise.
Big things to come I suspect, particularly with it feeling like such a natural progression of so much of FB's recent JS work.
> I find the data from the "I've used this but wouldn't again" almost as interesting as anything else here.
I'd love to see an explicit "percentage of those who've used it who would use it again" number for each library, easily glanceable. I think that's what most of us are probably doing in our heads when looking at this data.
