node js chat application

This article mainly introduces Node. memory leakage in js, Node. js is A framework that enables JavaScript applications to run on the server. if you need it, you can refer to this article as A Node brought by Mozilla's Identity team. the first article in the

Node. js has quickly benefited from its event-driven and asynchronous features. This article will introduce 10 articles. It has been tested that it can greatly improve the skills of Node applications. Let's take a look at NodeJS one by one as a server-side JavaScript interpreter, which will change the concept of how the server works. It aims to help programmers b

This is a special Node. js learning note for beginners. This note will show you how to Start Node. js step by step. 1. Introduction to node. js I have a lot of information on the Internet. 1. What is

Npm is a module dependency management tool for Node. js. As a tool used by developers, it mainly solves problems encountered during Node. js development. Like RubyGems's importance to Ruby developers and Maven for Java developers, npm's importance to Node.

My path to Node. js Learning (1) and the path to node. js Learning 1. Introduction to node. jsI have a lot of information on the Internet. 1. What is node. js?At the core,

Summarize some error types in Node. js and summarize the node. js types. Preface Multiple types of errors may occur in Node. js applications. For example, if a syntax error or runtime error occurs, a JavaScript error is triggered.

This article focuses on. two key concepts of js: non-blocking IO and event loops are summarized appropriately. If you need them, you can refer to the following concepts to learn and use Node. javascript has been writing a web application and a RESTful web api using express and mongoose for two months. js official websi

Node. js Study Notes (2)-modularization, node. js Study Notes Welcome to reprint, but please indicate the source: http://blog.csdn.net/sysuzjz/article/details/43987289 Thanks: nodebeginner.org An application consists of different modules. Now we will introduce these modules

Node. js has to say 12 points. node. js has to say 1. node. js: javascript on the server side. It allows javascript code to be run on the backend (out of the browser environment. 2. event-driven, asynchronous I/O programming mode

1.1.61023 When we think we have captured the lagging behavior, we can run the following code to stop the analyzer: slc ctl cpu-stop 1.1.61023 Run the following code to write a file to the hard disk: CPU profile written to `node.1.1.61023.cpuprofile`, load into Chrome Dev Tools Okay, that's it. You can load the file into Chrome for further analysis as in the V8 analyzer. Make the right decisionIn this article, I show three ways to capture CPU usage in

Node. js boot script file, node. js Startup Script Copy codeThe Code is as follows:#! /Bin/bash### BEGIN INIT INFO# Provides: xiyoulib# Required-Start: $ all# Required-Stop: $ all# Default-Start: 2 3 4 5# Default-Stop: 0 1 6# Short-Description: Start daemon at boot time# Description: Enable service provided by daemon.#

This article mainly introduces Node. in js, the event transmitter mode is used to implement event binding. This article also explains the basic knowledge of callback mode, transmitter mode, and event type. For more information, see Node, many objects launch events. For example, a TCP server will launch a "connect" event whenever a client requests a connection. Fo

Great routine analysis of node. js Reading Notes, node. js Reading Notes This week, nodejs learned how to use several dependent packages and used all the examples in the book. This article takes the routine as a clue to review the work of the week. 1. connect This routine mainly uses the connect dependency package. con

has been learning node for some time, before the Great node. js, the basic understanding of some of the basic usage of node and some concepts, and then began to see the second node. JS Combat, the first chapter is to build a blog

, we have to define it again: The code is as follows: App. use (function (req, res, next ){Object. defineProperty (req, 'IP ',{Get: function () {return this. headers ['X-iisnode-REMOTE_ADDR '];}});Next ();}); This problem is finally solved, but this is not a good method. it would be too difficult if Express sets req. ip to read-only in the future. Continue the test and find another problem. Normally, the file upload function in the blog background uploads files to the public/upload directory,

Node. js debugging skills, node. js debugging Author: zhanhailiang Date: 1. console. log Similar to front-end debugging, code debugging is performed by printing related variables step by step. 2. Use the Node. js built-in Debugger

This article mainly introduces the method and code for starting the script file of node. js at startup. here, I will share it with you. if you need it, refer to it. The code is as follows: #! /Bin/bash### BEGIN INIT INFO# Provides: xiyoulib# Required-Start: $ all# Required-Stop: $ all# Default-Start: 2 3 4 5# Default-Stop: 0 1 6# Short-Description: Start daemon at boot time# Description: Enable service pr

version management: no subshells, no profile setup, no convoluted API, just simple. Install n It is very easy to install n. It is an NPM module. Therefore: npm -g install n Use and settings To use n to install a specific version of node, you only need the following command: N stable # Install the latest stable version n lts # Install the latest LTS version n 6.9.0 # Install a specific v6.9.0 After multiple versions are installed, enter the n command

This article mainly introduces how to use socket in node. for more information about how to create a namespace for I/O, see. If a developer wants to completely control the sending of messages and events in a specific application, you only need to use a default "/" namespace. however, if developers need to provide applications to other applications as third-party services, they need to define an independent

(req, res) {// if you send a GET request to 127.0.0.1: 1337/test? Var url_info = require ('url') If a = 1 B = 2 '). parse (req. url, true); // check whether requestif (url_info.pathname = '/test') for/test {// use url encode for query, in this way, you can use post to send var post_data = require ('querystring '). stringify (url_info.query); // optionvar post_options of post = {host: 'localhost', port: 1337, path: '/response_logic', method: 'post', headers: {'content-type': '