Express.js - app.listen vs server.listenThis may be a very basic question but I simply don't get it. What is the difference between creating an app using Express.js and starting the app listening on port 1234, for example: var express = require('express'); var app = express(); //app.configure, app.use etc app.listen(1234); and adding an http server: var express = require('express'); var http = require('http'); var app = express(); var s
