wonderdogone/express next() example

## express next() example
app.get("/user/:userid", function (req, res, next) {
  var id = parseInt(req.params.userid);
  if (id === 'John') {
    next();
  } else {
   //do something with the none John user id
  }
});
	app.get("/user/:userid", function (req, res, next) {
	var id = parseInt(req.params.userid);
	if (id === 'John') {
	next();
	} else {
	//do something with the none John user id
	}
	});