index.js

//Requiring Express in the file
const express = require("express");

const app = express(); //This is our Express Applicaiton

//We shall now define a simple route to display "Hello World"
app.get("/",function(req,res){
  res.send("Hello World");
});

//Linking our server to a port of our choice
app.listen(6600,function(err){
  if (err)
    return console.log(err);
  console.log("Server running on Port 6600");
});