[mongoose] How do I limit the number of returned items?

myModel.find({}, function(err, items) {
    console.log(items.length);    // Big number
});

How can I limit the returned items to only the latest 10 items that were inserted?

For some reason I could not get this to work with the proposed answers, but I found another variation, using select, that worked for me:

models.Post.find().sort('-date').limit(10).select('published').exec(function(e, data){
        ...
});

Has the api perhaps changed? I am using version 3.8.19

...additionally make sure to use:

mongoose.Promise = Promise;

This sets the mongoose promise to the native ES6 promise. Without this addition I got:

DeprecationWarning: Mongoose: mpromise (mongoose's default promise library) is deprecated, plug in your own promise library instead: http://mongoosejs.com/docs/promises.html

Like this, using .limit():

var q = models.Post.find({published: true}).sort('date', -1).limit(20);
q.execFind(function(err, posts) {
  // `posts` will be of length 20
});

models.Post.find({published: true}, {sort: {'date': -1}, limit: 20}, function(err, posts) {
 // `posts` with sorted length of 20
});

Find parameters

The parameters find function takes are as follows:

1. conditions «Object».
2. [projection] «Object|String» optional fields to return, see Query.prototype.select()
3. [options] «Object» optional see Query.prototype.setOptions()
4. [callback] «Function»

How to limit

const Post = require('./models/Post');

Post.find(
  { published: true }, 
  null, 
  { sort: { 'date': 'asc' }, limit: 20 },
  function(error, posts) {
   if (error) return `${error} while finding from post collection`;

   return posts; // posts with sorted length of 20
  }
);

Extra Info

Mongoose allows you to query your collections in different ways like: Official Documentation

// named john and at least 18
MyModel.find({ name: 'john', age: { $gte: 18 }});

// executes, passing results to callback
MyModel.find({ name: 'john', age: { $gte: 18 }}, function (err, docs) {});

// executes, name LIKE john and only selecting the "name" and "friends" fields
MyModel.find({ name: /john/i }, 'name friends', function (err, docs) { })

// passing options
MyModel.find({ name: /john/i }, null, { skip: 10 })

// passing options and executes
MyModel.find({ name: /john/i }, null, { skip: 10 }, function (err, docs) {});

// executing a query explicitly
var query = MyModel.find({ name: /john/i }, null, { skip: 10 })
query.exec(function (err, docs) {});

// using the promise returned from executing a query
var query = MyModel.find({ name: /john/i }, null, { skip: 10 });
var promise = query.exec();
promise.addBack(function (err, docs) {});

I am a bit lazy, so I like simple things:

let users = await Users.find({}, null, {limit: 50});