javascript - Mongoose kitten example not working -


i'm trying started kitten example @ mongoose website, keep getting error saying:

process.nexttick(function() { throw err; }) ^ typeerror: undefined not function

my code directly copied example @ website, not work.

var express = require('express'); var mongoose = require('mongoose');  mongoose.connect('mongodb://localhost/db');   var app = express(); var db = mongoose.connection;  db.on('error', console.error.bind(console, 'connection error:')); db.once('open', function (callback) {    var kittyschema = mongoose.schema({       name: string   })    var kitten = mongoose.model('kitten', kittyschema)    var silence = new kitten({ name: 'silence' }) console.log(silence.name) // 'silence'  // note: methods must added schema before compiling mongoose.model() kittyschema.methods.speak = function () {   var greeting = this.name     ? "meow name " + this.name     : "i don't have name"   console.log(greeting); }  var kitten = mongoose.model('kitten', kittyschema)  var fluffy = new kitten({ name: 'fluffy' }); fluffy.speak() // "meow name fluffy" });  app.get('/', function(req, res) {   res.send('hello world'); });  app.get('/secret', function(req, res) {   res.send('secret page'); });  var port = process.env.port || 1337;  app.listen(port, function() {   console.log('http://127.0.0.1:' + port + '/');  });

i'm sorry if answer obvious i've started out node.js , need getting hang of it.

thank in advance.

update: full error message

/users/joseph/documents/atom-files/node_modules/mongoose/node_modules/mongodb/lib/server.js:274       process.nexttick(function() { throw err; })                                           ^ typeerror: undefined not function     @ nativeconnection.<anonymous> (/users/joseph/documents/atom-files/test/app.js:18:17)     @ nativeconnection.g (events.js:199:16)     @ nativeconnection.emit (events.js:104:17)     @ open (/users/joseph/documents/atom-files/node_modules/mongoose/lib/connection.js:485:10)     @ nativeconnection.connection.onopen (/users/joseph/documents/atom-files/node_modules/mongoose/lib/connection.js:494:5)     @ /users/joseph/documents/atom-files/node_modules/mongoose/lib/connection.js:453:10     @ /users/joseph/documents/atom-files/node_modules/mongoose/lib/drivers/node-mongodb-native/connection.js:59:5     @ /users/joseph/documents/atom-files/node_modules/mongoose/node_modules/mongodb/lib/db.js:206:5     @ connecthandler (/users/joseph/documents/atom-files/node_modules/mongoose/node_modules/mongodb/lib/server.js:272:7)     @ g (events.js:199:16)     @ emit (events.js:107:17)     @ /users/joseph/documents/atom-files/node_modules/mongoose/node_modules/mongodb/node_modules/mongodb-core/lib/topologies/server.js:374:23     @ /users/joseph/documents/atom-files/node_modules/mongoose/node_modules/mongodb/node_modules/mongodb-core/lib/topologies/server.js:730:13     @ callbacks.emit (/users/joseph/documents/atom-files/node_modules/mongoose/node_modules/mongodb/node_modules/mongodb-core/lib/topologies/server.js:84:3)     @ null.messagehandler (/users/joseph/documents/atom-files/node_modules/mongoose/node_modules/mongodb/node_modules/mongodb-core/lib/topologies/server.js:219:23)     @ socket.<anonymous> (/users/joseph/documents/atom-files/node_modules/mongoose/node_modules/mongodb/node_modules/mongodb-core/lib/connection/connection.js:259:22) 14 may 21:02:09 - [nodemon] app crashed - waiting file changes before starting...

you're compiling schema twice, , 1 of times before defining method. line specifically:

var kitten = mongoose.model('kitten', kittyschema)

you need wait until after you've defined kittyschema.methods before compiling mongoose.model. own code comment telling not :)

also, future reference, typeerror: undefined not function error pasted isn't of use call stack below is, points out fluffy has no method 'speak'.


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