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a0a435d68f
This refactors key warning to happen inline after we've matched a Fiber. I didn't want to do that originally because it was riskier. But it turns out to be straightforward enough. This lets us use that Fiber as the source of the warning which matters to DevTools because then DevTools can associate it with the right component after it mounts. We can also associate the duplicate key warning with this Fiber. That way we'll get the callsite with the duplicate key on the stack and can associate this warning with the child that had the duplicate. I kept the forked DevTools tests because the warning now is counted on the Child instead of the Parent (18 behavior). However, this won't be released in 19.0.0 so I only test this in whatever the next version is. Doesn't seem worth it to have a test for just the 19.0.0 behavior.
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