Use option: { noDelay }

Refs: https://github.com/HowProgrammingWorks/Drop-Nodejs14

Author: tshemsedinov

JavaScript/1-tcp-server.js

@@ -6,15 +6,18 @@ const onData = (data) => {
   console.log('📨:', data);
 };
 
+const options = { noDelay: true };
+
 const server = net.createServer((socket) => {
   console.dir(socket.address());
-  socket.setNoDelay(true);
   socket.write('💗');
   socket.on('data', onData);
   socket.on('error', (err) => {
     console.log('Socket error', err);
   });
-}).listen(2000);
+});
+
+server.listen(2000, options);
 
 server.on('error', (err) => {
   console.log('Server error', err);