Modernize API

Author: sebmarkbage

fixtures/flight/src/index.js

@@ -1,6 +1,6 @@
 import * as React from 'react';
 import {Suspense} from 'react';
-import ReactDOM from 'react-dom';
+import ReactDOM from 'react-dom/client';
 import ReactServerDOMReader from 'react-server-dom-webpack';
 
 let data = ReactServerDOMReader.createFromFetch(fetch('http://localhost:3001'));
@@ -9,9 +9,8 @@ function Content() {
   return React.experimental_use(data);
 }
 
-ReactDOM.render(
+ReactDOM.createRoot(document.getElementById('root')).render(
   <Suspense fallback={<h1>Loading...</h1>}>
     <Content />
-  </Suspense>,
-  document.getElementById('root')
+  </Suspense>
 );