how to know node js version

This article mainly introduces the definition of node. js, as well as a summary of the role of node. js, I hope you learn more, let's come and see this article First, let's look at what node. js can do. This is node's more formal

Use the n tool to easily manage the Node. js version and the n tool node. js version. Preface I believe that for learning Node. as all js co

Node. js static file server ultimate version, node. js static ultimate version First, I would like to thank github for providing the source code on github. Compared with last night's static file server, it is a little more complex

."); Console.log (ERR); Appendtologfile (folder,"File" +picurl+ "Download failed. \ n"); Failed++; }Else{appendtologfile (folder,"File" +picurl+ "Download succeeded. \ n"); Console.log ("File" +filename+ "Download succeeded"); Succeed++; } }); }); }); //Timeout ProcessingReq.settimeout (7500,function() {req.abort (); }); //Error HandlingReq.on (' Error ',function(err) {if(Err) {Console.log (' [downloadpic] file ' +picurl+ ' download failed, ' + '

HandlingReq.on (' Error ',function(err) {if(err.code== "Econnreset") {Console.log (' [Downloadpic]socket port connection timed out. ‘); Console.log (ERR); }Else{Console.log (' [Downloadpic] Request error occurred, Err.code: ' +Err.code); Console.log (ERR); } }); //End of Requestreq.end ();}//--------------------------------------//Program Entry//--------------------------------------functionGetInput () {Process.stdout.write ("\033[35m Please enter the first page url:\033[039

This article mainly introduces relevant information about the Community version of Node. js static file server. If you need it, please refer to it. First of all, thank github for providing the source code on github. Compared with last night's static file server, it is a little more complex and can learn a lot of new things. The Code contains a fs. stat function

Brief Introduction to node. js version control nvm and n, node. jsnvm Today's topic includes two parts 1. Use nvm or n for version control under node. js2. After the node.

1. node. JS is built on Chrome's JavaScript EngineWe know that Google's Chrome browser has a very fast JavaScript Engine called V8. This JS engine can be isolated. Node. JS is built on V8. This is why

to the browser to go.First:the requested encapsulation:1> Request Line (HTTP version, URL, request method, request parameter)2> Request Header (Request time, browser version, system version, cookie)3> Blank line (one format)4> Request message body (usually post method request parameter)Second:encapsulation of the response:1> Status line (status code, status info

Introduction:Now 2017 years, in this front-end prevalence of the year, do not know some of the front-end popular technology is outdated, just the company H5-end project is to let this direction to replace.Technology selection:Here is the main point briefly, the latter will be divided into chapters detailed analysis1.react: One of the most Popular front-end frameworks at the momentA web tool for the 2.nowa:webpack series, packaging, compiling, etc.3.re

modules will still be available.2.0 of the PlanNotadd 2.0 will be developed based on Nodejs, while providing features and features that are not available in 1.0.Why the NodeJS? Performance: In IO-intensive operations, NodeJS can easily implement 5W concurrency with asynchronous non-blocking mechanisms, while Laravel is only 200. Convenience: NodeJS can easily install the extension, and PHP needs to pecl or phpize even recompile, which is not familiar with the environment of the dep

) { longstr+ = ' a ';} // longstr=new Buffer (LONGSTR); Http.createserver (function(req,res) { res.writehead (); Res.end (LONGSTR);});The problem in this case is that every time the request calls Res.end, it is necessary to do an operation equivalent longstr=new Buffer (LONGSTR);So it's time to move this step forward. Remove the comments in the code so that we can store the original longstr directly as buffer, and follow it directly, without wasting the CPU.This article is to read the r

Thanks to the contributions of a large number of developers, the Node version has a fast iteration speed and many versions (from 0.6 to 0.11). Therefore, upgrading the Node version has become a problem. At present, there are n and nvm tools that can be used for painless Node

, such as async Combined use of generators and Promises Use the async/await function (can only be run in node V7 release version, node LTS version is not yet supported-want to know more, can refer to our blog async/await practice) What is Promises?The concept o

Install the Upstream version of Node. js on UbuntuInstall the Upstream version of Node. js on Ubuntu Node. js is a software platform that ca

Install the upstream version of node. js on Ubuntu Chszs, all rights reserved, without permission, not reproduced. Blogger Home: Http://blog.csdn.net/chszsnode. JS is a software platform that you can use to quickly develop and build scalable Web applications. node.

\hello>spm buildThe build process will have not Found I18n!lang dependency! warning, regardless.In fact, when the code is running, we will configure the preload plugin in Seajs.config, which will not have any effect.After the build is finished, the corresponding code file is generated in sea-modules/apps/hello/1.0.0/, and the business JS file is merged into Main.js.C:\assets\sea-modules>tree apps /fYou can view the output of the build by executing the

Description: With Yum benefits in fact a lot, environment variables do not configure, configuration file in everyone familiar place, through RPM-QL xxx can know all the files of the place and so on.node. JS (8.x)First, installation and configuration1. Install node. js# Curl--silent--location https:///rpm.nodesource.com

Introduction to the principle and solution of node. js version management tool n N is a module of node. It can be used to manage various versions of node. It is similar to Python's rbenv and Ruby's rbenv. The author of n is the famous corner stone. Install n through npm: $

/gnvm.exe?raw=true -o gnvm.exe Installation No node. JS Environment exists Download and unzip the gnvm.exe save to any folder and add this folder to the environment variable Path . There is a node. JS Environment Download and unzip gnvm.exe Node.js the folder where you saved it.