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3b6826ed9e
This mode is going to be the new default in Flow going forward.
There was an unfortuante large number of suppressions in this update.
More on the changes can be found in this [Flow blog post](https://medium.com/flow-type/new-flow-language-rule-constrained-writes-4c70e375d190).
Added some of the required annotations using the provided codemod:
```sh
node_modules/.bin/flow codemod annotate-declarations --write .
```
ghstack-source-id: 0b168e1b23
Pull Request resolved: https://github.com/facebook/react/pull/25422
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.
Usage
import { useState } from 'react';
import { createRoot } from 'react-dom/client';
function Counter() {
const [count, setCount] = useState(0);
return (
<>
<h1>{count}</h1>
<button onClick={() => setCount(count + 1)}>
Increment
</button>
</>
);
}
const root = createRoot(document.getElementById('root'));
root.render(<Counter />);