gistfile1.js

var Db = require('mongodb').Db,
    Connection = require('mongodb').Connection,
    Server = require('mongodb').Server;

var db = new Db('mongo-test', new Server("localhost", Connection.DEFAULT_PORT, {}), {native_parser:false});

var collection; // Global collection

var onConnect = function(err, db) {
	db.dropDatabase(function() {
		db.collection("foo", function(err, coll) {
			collection = coll;
			console.log("foo collection set");
		});
  });
};

db.open(onConnect);