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Andrew Clark
82c8fa90be
Recoil uses useMutableSource behind a flag. I thought this was fine because Recoil isn't used in any concurrent roots, so the behavior would be the same, but it turns out that it is used by concurrent roots in a few places. I'm not expecting it to be hard to migrate to useSyncExternalStore, but to de-risk the change I'm going to roll it out gradually with a flag. In the meantime, I've added back the useMutableSource API.
react
React is a JavaScript library for creating user interfaces.
The react package contains only the functionality necessary to define React components. It is typically used together with a React renderer like react-dom for the web, or react-native for the native environments.
Note: by default, React will be in development mode. The development version includes extra warnings about common mistakes, whereas the production version includes extra performance optimizations and strips all error messages. Don't forget to use the production build when deploying your application.
Example Usage
var React = require('react');