add: experiment nodejs (#4)

Author: driannaird

experiment/app.js

@@ -0,0 +1,14 @@
+const http = require("http");
+
+const hostname = "localhost";
+const port = 9023;
+
+const server = http.createServer((req, res) => {
+  res.statusCode = 200;
+  res.setHeader("Content-Type", "text/plain");
+  res.end("Hello World");
+});
+
+server.listen(port, hostname, () => {
+  console.log(`Server running at http://${hostname}:${port}`);
+});