why do you need to store the port in express if you later set the port from var

[ion]

generator/templates/js/www.ejs

Line 16 in d1f3fcc

 app.set('port', port); 

/**

• Get port from environment and store in Express.
  */

var port = normalizePort(process.env.PORT || '3000');
app.set('port', port);

/**

• Create HTTP server.
  */

var server = http.createServer(app);

/**

• Listen on provided port, on all network interfaces.
  */

server.listen(port);
server.on('error', onError);
server.on('listening', onListening);

please explain

[Douglas Wilson]

It is stored in a variable as it is used in multiple places in the file.

[Douglas Wilson]

As for storing in on express as a setting, it is not necessary, but a common convention to get the port in your other files with app.get('port')