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Create simple chat rooms for Node. js and simple chat rooms for node. js I read about TCP and wrote a NET-based chat room. Var net = require ('net'); var count = 0, users ={}; var server = net. createServer (function (conn) {console. log ('connection'); conn. write ("\ r \ n> welcome to

10.1 Handling Errors using domain module/27210.1.1 Domain Module Overview/27210.1.2 Creating and Using domain objects/27410.1.3 implicit binding vs. explicit binding/27610.1.4 binding callback function with intercept callback function/27910.1.5 the pop-up and push-in of the domain stack/280Destruction of 10.1.6 domain objects/28610.2 Assertion processing in node. js/28610.2.1 equal method and NotEqual metho

As we all know, Nodejs's single-process non-blocking model is suitable for task-intensive (IO) rather than computing-intensive. How many of them are not suitable for computing? The following is a simple hardware platform for testing: Apple Macmini6 and Windows 8. the single-process non-blocking model of js is suitable for task-intensive (I/O) instead of computing-intensive. so how many are not suitable for computing? The following is a simple test. th

How to install Node. js on Linux and Node. js on Linux Node. js is built on Google's V8 JavaScript engine server software platform. Node. js

This article mainly introduces common methods of CRYPTO in the NODE. JS encryption module. For more information, see use require ('crypto') to call the encryption module. The encryption module requires the underlying system to support OpenSSL. It provides a security credential encapsulation method that can be used for HTTPS security networks and common HTTP connections. This module also provides a set of h

The console. assert method in node. js is used in node. js scenarios. Method description: This method is the same as assert. OK. If the expression evaluates to false, an AssertionError will be thrown along with the message) Syntax: Copy codeThe Code is as follows:Console. assert (expression, [message]) Receiving p

Ah, this is the book again. It's like there's an interactive diagram, uh ... The order of the message response seems to be different from my program.In fact, the problem is not big, the operation instance, the console runs the file App.js open service:var io=require (' Socket.io '). Listen (8080,{log:false}); Io.sockets.on (' Connection ', function (socket) {Socket.on (' msg ', function (data) {Console.log (data), if (data.state) {if (data.state== ' OK ') {socket.emit (' msg ', {' Me ': ' Very g

In-depth understanding of the node. js http module, and in-depth understanding of node. js The http module is mainly used to build an HTTP server and client. The HTTP module must be called to use the http server or client functions. Create a server Var http = require ("http"); var url = require ("url"); // create a ser

This article mainly introduces the amazing node. js reading notes node's Learning Summary. if you need a friend, you can refer to the project you will be doing this week (it should be said that this is the case all the time). let's make a conclusion based on different situations ~ This record is a summary of node learning, and the next one is the web front-end kn

This article mainly introduces how to install and run the Node. js environment. Node is a JavaScript interpreter based on the GoogleChromeV8 engine. For more information, see InstallerNodeJS provides some installation programs that can be downloaded and installed at nodejs.org. In Windows, select an installation file with the. msi suffix that matches the system

This article mainly introduces the implementation of multi-process by child_process in Node. js. For more information, see The Code is as follows: Var http = require ('http ');Function fib (n ){If (n Return 1;} Else {Return fib (n-2) + fib (n-1 );}}Var server = http. createServer (function (req, res ){Var num = parseInt (req. url. substring (1), 10 );Res. writeHead (200 );Res. end (fib (num) + "\ n ");});

This article mainly introduces the node. js game sharing that allows multiple users to move their mouse online at the same time. This article provides the server and client code and running methods. For more information, see the recent project requirements, so I studied the websocket Implementation of nodejs, socket. io, which is a widely used framework of nodejs background applications websocket. Preparat

Node. js ~ Deployment on linux ~ Solution for accessing the node. js website over the Internet, linuxnode. js This is the last node. subsequent articles on deploying js to linux, when

This article mainly introduces node. http. response. description of the write method. This document introduces http. response. write method description, syntax, receive parameters, use instances, and implement Source Code. For more information, see Method description: Sends the response content to the requested client. Before response. end (), response. write () can be executed multiple times. Syntax: The Code is as follows: Response. write

This article mainly introduces Node. process. nextTick uses an instance. what is the use, use, and difference between the nextTick function and setTimeout? this article explains this knowledge, for more information, see where I can see process for the first time. nextTick is called. Oh, it should be seen in the official process document of nodejs. At that time, I didn't understand what this was doing. all of them already had setTimeout. What else shou

This article mainly introduces node. the implementation principle of RPC (Remote process call) in js is introduced. This article is based on a simple RPC library nodejslight_rpc implementation. If you need a friend, refer to RPC (Remote process call ), that is, you can call the Program Method on the remote host locally and see a simple nodejs implementation to learn the RPC principle well: nodejs light_rpc

* * The original link is * * [http://www.hostingadvice.com/how-to/install-nodejs-ubuntu-14-04/] (http://www.hostingadvice.com/　　HOW-TO/INSTALL-NODEJS-UBUNTU-14-04/) * * by author Jacob Nicholson published in October 27, 2015**** here to thank the author * * node. JS is becoming more and more popular as a JavaScript-based development platform. Many developers want to build programs and libraries developed th

First, build a simple layout, for the below to explain the use of1, the HTML part of the code :DivID= "Div1">Div1Div>DivID= "Div2">Div2spanID= "Span1">Span1span> spanID= "Span2">Span2span>Div>DivID= "Div3">Div3bID= "B1">B1b> bID= "B2">B2b>Div>2. JS part of the code: (First to write in the HTML just a few tags are obtained, here only in the native JS, in jquery default is deleted)var oDiv2 = document.g

Simple getting started with Node. js in Windows, and getting started with node. js Recently, Paypal and Netflix announced the migration to Node. js, the server-side Javascript platform has proved its value in the enterprise field.

This article mainly introduces node. socket. io broadcast messages. For more information, see socket. the io () server has a sockets attribute. The attribute value is all socket objects connected to the client. you can use the send method or emit method of this object to broadcast messages to all clients. Io. sockets. send ("user commected ); Io. socket. emit ("login", names ); Case Server. js code: The