Some point in time, while using social platforms we think how this chat window works. It is pretty simple. Here is sample demo application which will show how the chat window works in Node.js. We will be using the socket.io module for communication between chat windows. You can read about the ‘socket.io’ from https://socket.io/ .   Node.js: It should be installed. Express js: As it is a web application we will require the express module. if you want to read…