nodejs cookbook

Nodejs is used to obtain the product category of a certain treasure, and the product category of nodejs treasure I have nothing to worry about. I studied e-commerce websites. My friends opened a store and saw a wide variety of products. So I did a little research. AJAX is used to obtain the product category. Because of the need to log on to the product, I am not busy. The simplest way is to log on to the co

Since my server is a purchased cloud server, the entire configuration is connected to SSH Lnmp 由于云服务器刚使用不久，此前一直是只安装了centos 6.5版本的裸机，因此这次顺道配置了LNMP，整个LNMP环境的安装和LAMP环境的搭建基本一致。附本人参照的配置博客：http://www.cnblogs.com/xiaoit/p/3991037.html，这篇博客只是基础的安装LNMP，并测试Nginx解析php脚本文件，并未对各个环节做详细配置说明，如果想看详细的配置，请自行百度。 node. JS Installation 在Node.js上下载安装包，非源码包，因为安装包是已经被编译过，可以直接使用，源码包安装的话，繁琐坑多。1.在安装之前首先核对自己的系统位数 getconf LONG_BIT 2.在node.js上下载相应版本的安装包(https://nodejs.org/en/download/) 3.通过ftp上传到自己的云服务器上4.解压缩文件 $tar xvJf

Initial Nodejs, nodejs Basic Concepts Node.jsOr Node isJavaScriptRun on the server platform. It can be said that,Node.jsCreatedjavascriptModular development first, earlyjavascriptThe requirements are very simple. They are basically written as functions, followed by process-oriented writing. Later, we gradually introduced the idea of object-oriented development, and then began to write classes. Finally, the

Nodejs global variables and nodejs global variables 1. global Similar to the window in the client javascript Runtime Environment Module1.js: Module. exports = {}; // The global variable global. varA = "abc "; The global object can be omitted in actual use. It is the default root scope, which is equivalent to the window object in the web environment.The global object has several useful attributes: Cons

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NodeJS creates the simplest HTTP server and nodejs creates the server ☆Introduction var http = require('http');http.createServer(function(request, response){ response.writeHead(200, { 'Content-Type': 'text-plain' }); response.end('Hello World\n');}).listen(8124); There is a. createServer server method for the top-level http object.A server is created, and two events related to the server are created.Reque

Nodejs public account payment development, nodejs mail public payment OdeJs public account function development, mobile terminal H5 page call payment function. In the past few days, we have used the payment function called by node and h5 pages to meet the company's needs. Now we repeat the development process to help more developers smoothly complete the development of the payment function. (Node payment fu

Easy creation of nodejs servers (7): Implementation of blocking operations, nodejs servers Let's take a look at what is a blocking operation; I simulate a sleep () method to delay hello star from printing for 10 seconds. RequestHandlers. js Copy codeThe Code is as follows:Function start (){Console. log ("Request handler 'start' was called .");Function sleep (milliSeconds ){Var startTime = new Date (). getTi

Easy creation of nodejs servers (3): Code modularization and nodejs Modularization Most node. js functional blocks exist in the form of modules. Usually there is a unified entry index. js, and then different modules are called to complete the functions we need. Let's take a look at how to turn server. js into a module for the index. js main file to be used. Copy codeThe Code is as follows:Var http = require

Easily create nodejs servers (6): Respond to nodejs servers We then rebuild the server so that the request processing program can return some meaningful information. Let's take a look at how to implement it: 1. Let the request processing program directly return () the information they want to display to the user through the onRequest function.2. Let's start by asking the request handler to return the inform

The author of the well-known NodeJS framework Express, TJ Holowaychuk, tweeted and linked an article on Twitter, announcing the abandonment of NodeJS to Go.The reason he gives is that the go language and Rust, Julia, and so on are one of the many next-generation languages, although not the best language, but mature and robust enough to use the Go language to develop a better system, easier to maintain, erro

For example: Schools have students, teachers, and classes, each of which is a moduleCreate a school local file, new student.js teacher.js klass.js//Because class is a keywordThen implement the contents of each module:Student.jsfunction Add (student) { console.log (' Add student: ' + student)}//Mount Exports.add = addTeacher.jsfunction Add (Teacher) { console.log (' Add Teacher: ' + teacher)}//mount Exports.add = Add //MountKlass.jsStudent teacher require to Klassvar student = require ('./stud

correctly, so let's write a sample file to test it. Establish example.js in the C:\cygwin\ directory Inputvar http = require (' http '); Http.createserver (function (request, response) {Response.writehead ({' Content-type ': ' text/html '});Response.End (' }). Listen (8888); Console.log (' Server running at http://127.0.0.1:8888/'); Save (Note: Save as UTF-8 format, or you will report a syntax error). Run Cygwin, enter node/example.js carriage return in the command window Have you seen the ser

parameter to the Createserver, similar to the callback function. We pass a function to a method that calls this function for callback when there is a corresponding event, which we call an event-driven callback. Next we take a look at the main part of ONrequest (), when the callback is started and our onrequest () function is triggered, two parameters are passed in: request and response. Request: The requested information received; Response: The response that was made after the request was r

Next, let's see if forever can achieve the goal.First, Forever Introduction Forever is a simple command-nodejs daemon that can start, stop, and restart app apps. Forever is completely based on command line operation, under the Forever process, create node subprocess, monitor the operation of node subprocess through monitor, once the file is updated, or the process hangs, forever will automatically restart the node server to ensure the application is

Ext.: http://blog.fens.me/nodejs-mysql-intro/ObjectiveMySQL is a popular open source database product and is often the first choice for a free database. Checking the NPM list and discovering that Nodejs has 13 libraries to access Mysql,felixge/node-mysql seems to be the most watched item and I decided to try it out.Pay attention to the name, "Felixge/node-mysql" is not "Node-mysql", the installation section

Open Experience Library Nodejs Learning Roadmap: 1.Nodejs Introduction; 2.15 nodejs application scenarios; 3.Nodejs Learning RoadmapOpen Experience Library seven days to learn nodejs:1. Nodejs Foundation, installation, module; 2.

Nodejs Creating an HTTPS serverThe zero-based NODEJS series article will show you how to benefit JavaScript as a server-side script through NODEJS Framework web development. The NODEJS framework is a V8-based engine and is the fastest JavaScript engine available today. The Chrome browser is based on V8, and opening 20-

about Nodejs Chinese station, now the best active knowledge station should be http://www.cnodejs.org/, and http://cnodejs.org/is less active. Express.js is an MVC development framework for NODEJS and supports a variety of templates such as Jade, which is the most popular web development framework on node. js. These days just contact PhoneGap, once also looked at some No