mongodb - how to manipulate returned mongo collections / cursors in javascript (meteor.js)? -

in working meteor.js , mongo use find({some arguments}) , find({some arguments}).fetch() return cursors , array of matching documents respectively.

what real difference between two? (when use 1 versus other?)

what proper way manipulate/iterate on these type of returned objects?

e.g. have collection has many documents each title field.

my goal array of title fields' values e.g. [doc1title,doc2title,doc3title]

i did this:

var i, listtitles, names, _i, _len; names = entries.find({}).fetch(); listtitles = []; (_i = 0, _len = names.length; _i < _len; _i++) {     = names[_i];     listtitles.push(i.title); } 

or equivalent in coffeescript

names = entries.find({}).fetch() listtitles = [] in names     listtitles.push(i.title) 

which works, have no idea if proper way or semi sane way.

your first question has been asked before - see this post. short answer want use cursor returned find unless need of data @ once in order manipulate before sending template.

your coffeescript rewritten as:

titles = (entry.title entry in entries.find().fetch()) 

if using underscore, written as:

titles = _.pluck entries.find().fetch(), 'title'