monocle-ts VS valtio

Instead of the "deep path properties" syntax, you might want to take the opportunity to learn about functional lenses with monocle-ts

https://gcanti.github.io/monocle-ts/

You may be interested also in checking out the implementation of Lens in monocle-ts, one of the libraries in the fp-ts ecosystem

For anyone - anyone who's faffed around with JavaScript's spread syntax when working with nested immutable data, anyway - struggling to understand the general concept or utility of lenses, I'd encourage looking into monocle-ts. The motivation [0] that kicks off the README instantly made me a believer, and TypeScript's idiosyncratic type system makes using the library remarkably natural; it fits right in without needing to deal with anything analogous to Template Haskell.

[0] https://github.com/gcanti/monocle-ts#motivation

You could have a look at the monocle-ts library. It was designed to deal with this kind of problem.

spectacles-ts integrates seamlessly with the fp-ts ecosystem (it's built on top of the excellent monocle-ts library)

lenses help with this quite a bit, check out monocle-ts

You notice that Getters are composable as they are just pure functions, but the fact that setters are mutating values is not that nice. Tho, at this point we have invented quasi mutable lenses and If you really want you might invent actual purely functional lenses as well, but that’s for another day. Meanwhile you can take a look at an actual typescript lesses library from @gcanti / monocle-ts.

We took inspiration from the many frameworks we worked with throughout our careers. And maybe surprisingly, Django’s ORM layer impacted our design choices and the API quite a bit. The resulting framework relies on Zod for schemas and validation and Valtio for React integration.

Valtio is like simplified MobX

Even simpler than Zustand are state-atom libraries like jotai or recoil, or proxy based ones like valtio. Here's some discussion about the differences.

There is a package developed around this proxy concept called Valtio which is available for JavaScript, React, and so on... feel free to check and star it on Github.

I'm switching from redux-saga to valtio (https://github.com/pmndrs/valtio) for now. It's simple and easy to use, everything's great so far.

I like valtio, works w/ React or just js. Has subscribe, derive, and more.

https://github.com/pmndrs/valtio

Jotai and Valtio are both also really good. Recently looked at Nanostore as well and has some similarity to Jotai and Recoil.

Since we want the React component to react to an external change, using a state manager makes this easy. We will use Valtio here by example. For this library, change the esbuild config to --target=es2020 instead to remove some warnings (for example, the Zustand library is ok).