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You can replace redux with any FRP library. Your state is a signal/stream/whatever that folds over an initial state with a signal/stream/whatever of actions/messages. Your top level view component should listen and render based on that. Example: https://github.com/twfarland/sprezzatura-acto-mario

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Yeah, I'm pretty amazed at the amount of attention that a simple "fold"[1] gets in JS-land.

Yeah, OK, Redux (etc.) is also a little bit of a pattern for sort-of-algebraic data types, but really... I prefer using a language that actually supports algebraic data types natively like Scala.js, Reason, Bucklescript, js_of_ocaml or GHCJS.

I appreciate that these may not be an option for everyone, but at least one of them should be an option for the vast majority of current frontend developers.

[1] Well, technically I guess it would be a foldM?

Yeah, it's pretty trivial to rebuild Redux with a couple of functional building blocks, or my personal favorite, with RxJS and the scan operator.

I'm surprised that didn't pick up more yet.

typescript makes it tolerable, if well-used

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