use-context-selector VS effector-react

Use jotai, or as someone else mentioned, zustand. React Context out of the box requires a very deliberate mental model due to a lack of tooling around selecting slices of state. This is why packages like react-context-selector exist: https://github.com/dai-shi/use-context-selector

Unless I've missed it, context doesn't have selector IIRC. You'd have to use a third party solution useContextSelector

How does this differ from https://github.com/dai-shi/use-context-selector?

you can always split out context state or use a library to help with rerender issues like https://github.com/dai-shi/use-context-selector, or just switch to jotai or something else if you want something more ergonomic or better design patterns.

If you don't want to swap out useContext, you could always use useContextSelector, which helps you limit what props in the context should rerender the component.

I wouldn't call this easy

It wouldn't be clear to anyone learning Context API either. At least, not using official docs. Because Context API is not supposed for state management, and if you for some unknown reasons try to roll your own state management on top of it, you have to use tricky libraries to work around the issues resulting from such abuse.

Any time anything in the context changes, any component that is consuming it will re-render. If you use it for frequently changed values, this library is needed to reduce unnecessary re-renders.

Use of this implementation of useContextSelector

Another technology I use regularly is Redux. But this time I wanted to manage the global state in a simpler and clearer way just using React hooks. I decided to go with a simple useReducer combined with theuseContextSelector hook which will avoid the whole application’s re-render caused by the native useContext hook.

In its docs, Astro recommends nanostores, but I’ve used effector in the past. And LOVED IT. So I’ve used it for this project as well.

I've been using effector, together with the apollo-client for the last few years and, while it works, it's completely detached from the actual screens. In other words, you need to fetch everything (at startup) you might use at some point and it stays in the memory for the entire duration of the session. Error handling is also tricky as you need to explicitly subscribe to the specific error stores in order to render them. And, if something goes wrong, it's tricky to tell what data is actually used in the current screen, so it's almost impossible to do the Retry efficiently. OTOH the screens are nice and simple - no spinners, the data is just there, thus the app feels (and is) fast.

Actually, Svelte uses Effector for state management under the hood. You can read more about it here: https://effector.dev/. It also has bindings for other frameworks including React, Vue and Solid. Effector is a little not beginner-friendly, but once you truly understand it, Effector becomes a very powerful.

A state-management library.

Effector it is the another way to create state and business logic for your frontend application.

https://effector.dev/ here you go

Then I found Effector which seems to have the same features, and SolidJs support.

Where’s effector?

https://ngneat.github.io/elf/ https://effector.dev/