returnedSkip: Skip Some resultsSort: Sorting the resultsFields: Returns only the specified fieldMongoDB can conveniently put some of the data that MySQL needs to be associated with a one-to-many relationship through an array + object as a document stored in a collections, and provides various APIs to support the operation of an array within a document.MongoDB Common Query method and its embodiment in node:1. Database connection mongodb:mongo-u userna
instance is obtained, you can use net. Socket to do whatever you want. I listened to the data event to receive the data played by the server, and listened to the close event to exit the process. For specific API of net. Socket, refer to https://nodejs.org/api/net.html#net_class_net_socket.Running example
There is a saying in the comments that the time is too late. Well, you can run it. Run "node echoServer. js
in the code:
app.use(session({ secret: 'test', resave: false, saveUninitialized: true, cookie:{ maxAge: 1000*60*60 // default session expiration is set to 1 hour }, store: new MemcachedStore({ hosts: ['127.0.0.1:9000'], prefix: 'test_' })}));
The above session uses memcached as the session storage method, for how to use memcached can refer to the address on Github https://github.com/balor/connect-memcached
Of course, you can also use other session storage
This article will introduce you to the front-end and back-end of the practical node. js website, which is very detailed. If you need it, you can refer to what node. js can do? I still don't know where he is widely used, and I have no chance to access such a project. Just because I like it, I made a website and backgrou
, and the problems encountered are still on evernote. The difference between localhost and 127.0.0.1 has also occurred before. This week, I learned a function during js debugging, which allows js to dump an object like php. Now paste it below for sharing.
Copy codeThe Code is as follows:Function dump (arr, level ){Var dumped_text = "";If (! Level) level = 0;// The padding given at the beginning of the line.
users to enter a name is displayed. When the user input is complete, click the Confirm button, we can use the value parameter of the confirm method to obtain the value of the user name input box.
Other articles:
Getting started with Node. js Development -- introducing UIBootstrap
Getting started with Node. js devel
directory, such as/node. js, and set the permission to 754, which can avoid the trouble caused by some permission problems!
Because the Ubuntu Server system is used, the MongoDB startup service is configured above, and the following statements are added to its init. d script:
# Required-Start: $all# Required-Stop: $allTherefore, the system will prompt an
you can already see it in many of the node. JS Books.
Connect–connect is a node. JS HTTP Service Extension framework that provides a high-performance "plug-in" collection, known as middleware, and is one of the basic parts of Express.
Socket.io and sockjs– are currently the most popular two websocket component
Node. js blog instance (10) pv statistics and message statistics, node. jspv
Original tutorial.
In post. js, modify var post = {...} To (after each change, clear e:/mongodb/blog ):
// Document var post = {name: this. name, time: time, title: this. title, post: this. post, t
01.js/** * The first background language is ASP (Microsoft),*/varExpress = Require ("Express");//Database ReferencevarMongoclient = require (' MongoDB '). mongoclient;varassert = require (' assert ');//Debug: Assert.equal (NULL,ERR); error stop executing the following statementvarApp =Express ();//The address of the database connection, the last slash indicates the database name, and the database does not e
Example of using Node. js to implement RESTful API, node. jsrestful
Basic RESTful concepts
REST (Representational State Transfer) describes an architecture-style network system that first appeared in Roy Fielding's doctoral thesis in 2000. In the REST service, application status and functions can be divided into various resources. Resources are made public to the
This article mainly introduces how to optimize Node. this article describes the ten tips for jsWeb application running speed, including parallel, asynchronous, cache, gzip compression, and client rendering. If you need them, refer to Node. js has benefited from its event-driven and asynchronous features, and has become very fast. However, in modern networks, it i
Multi-User Blog system based on mean full stack architecture (ANGULAR2+NODE+MONGODB)Course Study Address: http://www.xuetuwuyou.com/course/223The course out of self-study, worry-free network: http://www.xuetuwuyou.comCourse IntroductionI. Introduction of the CourseMean is a modern web development framework for the JavaScript platform, which is the first letter combination of
Recently written program node. data storage is required for js programs. there are many databases that js can use, such as mongodb and MySQL. However, I still think these databases are too large to be useful, making them more troublesome. So I found node-tiny, a non-relation
First we set up this library under the command line:Then we introduce the MongoDB module into the project:var Mongoclient = require (' MongoDB '). mongoclient; var Db_str = "Mongodb://localhost:27017/blog"; // Here's a library built under MongoDB. var ObjectId = require (' MongoDB
now the majority of nodes. the standard framework of js applications, you can already find. js books see it.
Connect-Connect is a Node. js HTTP service expansion framework that provides a high-performance "plug-in" set. It is famous for its middleware and is one of the basic parts of Express.
Socket. io and sockjs
Run Node. js IIS extension iisnode installation configuration notes, node. jsiisnode
At the beginning of this year, I plan to use Node. js to rewrite the blog program based on the Express framework, and then I will say goodbye to ASP. NET. However, the current vps I use is a
you can already see it in many of the node. JS Books.
Connect–connect is a node. JS HTTP Service Extension framework that provides a high-performance "plug-in" collection, known as middleware, and is one of the basic parts of Express.
Socket.io and sockjs– are currently the most popular two websocket component
a node. JS HTTP Service Extension framework that provides a high-performance "plug-in" collection, known as middleware, and is one of the basic parts of Express.
Socket.io and sockjs– are currently the most popular two websocket components on the service side.
jade– is one of the popular template engines and is the default template engine for Express.js. It is inspired by HAML.
MONGO and mongoj
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