Currently getting up to speed with Reason (ReasonML). The latest version (3) brings Javascript-like syntax, and after many years of dynamically typed language

Currently getting up to speed with Reason (ReasonML). The latest version (3) brings Javascript-like syntax, and after many years of dynamically typed languages, having a compiler infer and check my types for me (and catch many errors before they reach the browser) is a good feeling. It's built using Bucklescript which brings a great toolkit of its own, and also means I'm pretty much learning OCaml at the same time. I'm learning Haskell too for home/side projects, but ReasonML means I can do functional programming for work whilst I learn all about FP again.