node.js - Returning nested array from mongodb and native node driver -

i have document that's setup this:

{  _id : '',  name : '',  friends : [     {'name' : ''},     {'name' : ''},     {'name' : ''}   ] }

i want select 'friends' array , array of objects iterate through. however, when this:

this.collection.find({'_id' : _id}, {'friends' : 1}).toarray(function(err, res) {     console.log(res); });

this returns array looks this:

[   friends : [       {'name' : ''},       {'name' : ''},       {'name' : ''}     ] ]

ideally, return:

[     {'name' : ''},     {'name' : ''},     {'name' : ''}  ]

is there way this?

thank you!

Brande