aheckmann

var query = { name: 'Sprinkls' };
var update = { name: 'Sprinkles' };
var options = { new: false };
Cat.findOneAndUpdate(query, update, options, function (err, cat) {
  if (err) ..
  render('cat', cat);
});

aheckmann

var update = { name: 'Sprinkles' };
Cat.findByIdAndUpdate(id, update, function (err, cat) {
  if (err) ..
  render('cat', cat);
});

aheckmann

Cat.findById(id, function (err, cat) {
  if (err) ...
  cat.name = 'Sprinkles'
  cat.save(function (err) {
    if (err) ..
    render('cat', cat);
  })
})

aheckmann

Post.findById(postId, function (err, post) {
  // handle errors ..
  var comment = post.comments.id(commentId);
  comment.body = updatedText;
  post.save(callback);
});

aheckmann

Post.findById(postId, function (err, post) {
  // handle errors ..
  post.comments.push({ body: someText, user: userId });
  post.save(callback);
})

aheckmann

var commentSchema = new Schema({ 
    body: String
  , user: Schema.ObjectId
  , created: { type: Date, default: Date.now }
});
var postSchema = new Schema({ comments: [commentSchema] });
var Post = mongoose.model('Post', postSchema);

aheckmann

var mongoose = require('mongoose');
var Schema = mongoose.Schema;
mongoose.connect('localhost', 'testing_11074799');
mongoose.connection.on('error', function () {
  console.error(arguments);
});


var UserSchema = new Schema({ name: String });

aheckmann

var times = 0;
function loop () {
  ++times;
  if (times >= 30000) throw new Error('fake stack overflow');
  return loop;
}

function start () {
  var fn;
  while (fn = loop()) fn();

aheckmann

var times = 0;
function loop () {
  ++times;
  if (times >= 30000) return;
  return loop;
}

function start () {
  var fn;
  while (fn = loop()) fn();

aheckmann

var times = 0;
function loop () {
  ++times;
  loop();
}

try {
  loop();
} finally {
  console.log('stack overflow after %d loops', times)