None of these are worth switching to a fringe ecosystem for.
The compile-example is misleading. Clean build times don't really matter. Iteration times with "tsc -w" would've likely been well under a second.
The boiler-plate in the redux example could be reduced, but redux itself is extremely boilerplate-heavy when written in this explicit style. It would be interesting to see how the ReasonML typesystem gets in the way of metaprogramming.
The compile-example is misleading. Clean build times don't really matter. Iteration times with "tsc -w" would've likely been well under a second.
The boiler-plate in the redux example could be reduced, but redux itself is extremely boilerplate-heavy when written in this explicit style. It would be interesting to see how the ReasonML typesystem gets in the way of metaprogramming.