node js use cases

step will be downloaded to github on the download file and progress, the fourth step is to install NPM to node. JS will copy several file cmd files and Mode_modules folder to the Nodejs directory.This configures NPM.If you need to install what module directly enter NPM Install * * *.No NPM or Windows users can use GitHub to download Socket.io and put it into the

(' Express '); var router =/**/router.get (function (req, res) { res.render (' index ', {title: ' Express ', workerid:process.pid}); ' /'= router;As you can see, in addition to routing, you also send a message using process.send, which actually triggers the workerlistener of the previous code's sub-process registration, reports the path and process number to it, and because of the use of render, it is naturally th

Use socket. io in node. js to create a namespace. If developers want to completely control the sending of messages and events in a specific application, they 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 a

technology. I wonder if you have any knowledge about the "Reverse Proxy" in network services. One of the functions is to distribute ports. We may wish to use domain names for Route distribution: requests for AA.com domain names are distributed to port 82 of PHP for execution. Requests for BB.com domain names are distributed to port 83 of ASP for execution ;...... And so on. Of course, the port here is only described and used. You can configure it as

commander, Use your favorite editor to open bin/hi. js and replace the original code with the following content: The code is as follows: #! /Usr/bin/env node 'Use strict '; Var program = require ('commander '); Program. Version ('0. 0.1 '); // declare the version number of hi. Program. Command ('list') // declare tha

// Zing with argument 33Require 'lib/vendor/autoload. php '; // This is the class we're re exposing to DNodeClass Temp{// Compute the client's temperature and stuff that value into the callbackPublic function temperature ($ cb){}} $ Loop = new React \ EventLoop \ StreamSelectLoop ();$ Dnode = new DNode \ DNode ($ loop, new Temp ());$ Dnode-> connect (7070, function ($ remote, $ connection ){// Remote is a proxy object that provides us all methods// From the server$ Remote-> zing (33, function ($

use VM. createscript. First, prepare a file named example. js in the root directory of your node (generally 'C: \ Program Files \ nodejs'). The content is: console.log(output); Run the following code in the node repl command box: var vm = require('vm');var fs = require('fs');var code = fs.readFileSync('example.js');co

This article mainly introduces node. fs. the fchmodSync method is described in this article. fchmodSync method description, syntax, receiving parameters, use instances and implementation source code. If you need it, refer to the following method description: Synchronous version of fchmod (). Syntax: Fs. fchmodSync (fd, mode) Because this method belongs to the fs module, we need to introduce the fs mod

This article mainly introduces node. fs. the fchmodSync method is described in this article. fchmodSync method description, syntax, receiving parameters, use instances and implementation source code. if you need it, refer to the following method description: Synchronous version of fchmod (). Syntax: Fs. fchmodSync (fd, mode) Because this method belongs to the fs module, we need to introduce the fs mod

This article teaches you how to use Node traversal of js to find the specific implementation idea of a repeater field. If you are interested, refer to it and hope to help you Js Section: The Code is as follows: Var checkboxs = document. getElementsByTagName ("input ");For (var I = 0; I { If (checkboxs [I]. ty

Today summarizes the use of the formidable module under node. js and gives some brief instructions below.1) Create Formidable.incomingform Objectvar form = new Formidable. Incomingform ()2) form.encoding = ' Utf-8 ' Sets the encoding of the form field3) Form.uploaddir = "/my/dir"; Set the folder to upload files, default to the system's temporary folder, you can

The landlord sequence dog, recently in the study of some things in the foreground, and then want to understand the next node. js, follow the example of the search to install.After installing Express, found that follow his verification method entered the EXPRESS-V command to verify the success of the installation, the results found that the prompt command is not availableWhat do we do? The speculation is tha

Node. js notes-do not use the page template to render the interface This is because you cannot remember any name.Looking at online references, the ejs party and jade party trend is like the fire Σ (° △° |) quit )︴However, it is not good for me to wait for a newbie to get rid of the template engine and concentrate on html. --------------------------This article re

Use Node. js to implement https-based Restful webservice1. create Certificate file bash-3.2 $ bash-3.2 $ mkdir sslbash-3.2 $ cd sslbash-3.2 $ openssl genrsa-out key. pem 1024 Generating RSA private key, 1024 bit long modulus .................................... ++ .......... ++ e is 65537 (0x10001) bash-3.2 $ openssl req-new-key. pem-out certrequest. csrYou are a

Use of fs. readFileSync in node. js, fs. readfilesync Method description: Synchronous version of fs. readFile (). Syntax: Copy codeThe Code is as follows:Fs. readFileSync (filename, [encoding]) Because this method belongs to the fs module, we need to introduce the fs module (var fs = require ("fs") before use "))

Image use Method (three ways any one can solve the problem, we recommend the use of a third, the configuration is dead, the next time the configuration is still):1. config command npm config set registry https:// npm info underscore (if configured correctly this command will have string response)2--registry https:// registry.npm.taobao.org Info Underscore3. Edit ~/.NPMRC= https://registry.npm.taobao.org

varHttp=require ("http");varUrl=require ("url");varServer=http.createserver (function(req,res) {varurl_parts=Url.parse (Req.url); Console.log (Url_parts); varopts={host:"210.14.152.181", Port:8188, Path:url_parts.pathname, headers:req.headers}; varCreq=http.get (OPTs,function(Cres) {res.writehead (cres.statuscode,cres.headers); Cres.pipe (RES); }); Req.pipe (creq);}); Server.listen (1337, "127.0.0.1",function() {Console.log ("Start Listening" +server.address (). port+ "...");});Teac

Use Node. JS to implement the mail sending function Step 1. Configuration First, install the nodemailer library. Npm install nodemailer // The latest version is installed by default. For more information about this database, see nodemailer. Step 2: Introduction to database usage This library is easy to use. First,

breakfast. Time to go to work! A function is created here. There are three parameters, and the third parameter is callback. This parameter must be a function.The haveBreakfast function records what it eats to the console and calls the callback function that is passed to it as a parameter. How to Use callback in Node. js Example of using the filesystem mod

This article mainly introduces the Quick Start learning of EJS templates. I think it is a good little bit. I will share it with you and give you a reference. Let's take a look at this article with a brief introduction to the Quick Start learning of EJS templates. I think this article is quite good. I will share it with you and give you a reference. Let's take a look at it with xiaobian. Node open-source templates have many options, but we recommend t