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456d153bb5
This implements useFormState in Fiber. (It does not include any
progressive enhancement features; those will be added later.)
useFormState is a hook for tracking state produced by async actions. It
has a signature similar to useReducer, but instead of a reducer, it
accepts an async action function.
```js
async function action(prevState, payload) {
// ..
}
const [state, dispatch] = useFormState(action, initialState)
```
Calling dispatch runs the async action and updates the state to the
returned value.
Async actions run before React's render cycle, so unlike reducers, they
can contain arbitrary side effects.
react-server
This is an experimental package for creating custom React streaming server renderers.
Its API is not as stable as that of React, React Native, or React DOM, and does not follow the common versioning scheme.
Use it at your own risk.