simple quickstart for mongoose.js from http://mongoosejs.com/docs/index.html

getting-started.js

// getting-started.js from http://mongoosejs.com/docs/index.html
var mongoose = require('mongoose');
mongoose.connect('mongodb://localhost/test');

var db = mongoose.connection;

db.on('error', console.error.bind(console, "connection error:"));

db.once('open', function callback () {
  // yay!

  var kittySchema = mongoose.Schema({ name: String  });

  kittySchema.methods.speak = function () {

    var greeting = this.name
      ? "Meow name is " + this.name
      : "I don't have a name";

    console.log(greeting);
  }

  var Kitten = mongoose.model('Kitten', kittySchema);

  var silence = new Kitten({ name: 'Silence' })
  console.log(silence.name); // 'Silence'

  var fluffy = new Kitten({ name: 'fluffy' });
  fluffy.speak(); // "Meow name is fluffy"

  fluffy.save(function (err, fluffy) {
    if (err) return console.error(err);
    fluffy.speak();
  });

  Kitten.find(function (err, kittens) {
  if (err) return console.error(err);
  console.log(kittens)
  });

  Kitten.find({ name: /^fluff/ }, simpleCallback);


});

function simpleCallback (err, results) {
  console.log(results);
};