send a binary message to a tcp server in javascript

To send binary data to a TCP server in JavaScript, you can use Node.js net module to establish a TCP connection with the server. Within the TCP connection, you can use a Buffer object to store binary data and send it over the socket.

Here is an example code to send a binary message to a TCP server in JavaScript:

index.tsx
const net = require('net');

const socket = new net.Socket();

const message = Buffer.from('Hello World', 'utf8');

socket.connect(8080, 'localhost', () => {
  console.log('Connected to server');
  socket.write(message);
});

socket.on('data', (data) => {
  console.log('Received data from server:', data.toString());
});

socket.on('close', () => {
  console.log('Connection closed');
});
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In the above code, we first create a Buffer object message that contains the binary message we want to send to the server. We then use the net module to create a socket and establish a TCP connection with the server at localhost:8080. Once the connection is established, we send the binary message using the write method of the socket object.

Finally, we listen to the data event of the socket object to receive data from the server, and the close event to handle the connection close event.