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Andrew Clark
fd3fb8e3c5
This is the next step toward full support for async form actions. Errors thrown inside form actions should cause the form to re-render and throw the error so it can be captured by an error boundary. The behavior is the same if the `<form />` had an internal useTransition hook, which is pretty much exactly how we implement it, too. The first time an action is called, the form's HostComponent is "upgraded" to become stateful, by lazily mounting a list of hooks. The rest of the implementation for function components can be shared. Because the error handling behavior added in this commit is just using useTransition under-the-hood, it also handles pending states, too. However, this pending state can't be observed until we add a new hook for that purpose. I'll add this next.
react-dom
This package serves as the entry point to the DOM and server renderers for React. It is intended to be paired with the generic React package, which is shipped as react to npm.
Installation
npm install react react-dom
Usage
In the browser
import { createRoot } from 'react-dom/client';
function App() {
return <div>Hello World</div>;
}
const root = createRoot(document.getElementById('root'));
root.render(<App />);
On the server
import { renderToPipeableStream } from 'react-dom/server';
function App() {
return <div>Hello World</div>;
}
function handleRequest(res) {
// ... in your server handler ...
const stream = renderToPipeableStream(<App />, {
onShellReady() {
res.statusCode = 200;
res.setHeader('Content-type', 'text/html');
stream.pipe(res);
},
// ...
});
}
API
react-dom
See https://react.dev/reference/react-dom
react-dom/client
See https://react.dev/reference/react-dom/client