NodeJS connection to MongoDB

connect.js

var databaseUrl = "mongolaburl"; // "username:[email protected]/mydb"
var collections = ["Persons"];
var db = require("mongojs").connect(databaseUrl, collections);

//Find a Person
db.Persons.find({sex: "male"}, function(err, users) {
  if( err || !users) console.log("No male users found");
  else users.forEach( function(maleUser) {
    console.log(maleUser);
  } );
});