Features
process.env.PORT makes the app dynamic so that it can run any port assigned to it in the future when hosted on a live server.
The normalizePort function returns a valid port, whether it is provided as a number or a string.
The errorHandler function checks for various errors and handles them appropriately — it is then registered to the server.
A listening event listener is also registered, logging the port or named pipe on which the server is running to the console.
- Install nodejs and npm
- Install Express
- Install nodemon