import { renderToReadableStream } from "https://esm.run/react-dom/server"; import * as React from "https://esm.run/react"; const { serve } = Deno; const addr = Deno.args[0] || "127.0.0.1:4500"; const [hostname, port] = addr.split(":"); const App = () => ( <html> <body> <h1>Hello World</h1> </body> </html> ); const headers = { headers: { "Content-Type": "text/html", }, }; serve({ hostname, port }, async () => { return new Response(await renderToReadableStream(<App />), headers); });