node js jade tutorial

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Online this aspect of the course is quite a lot of, but compared to the pit is, write only 0 broken, I first installed, simple record:1. Confirm that the computer is installed Eclipse,node.jsThe node. js Download and installation tutorial directly refer to the Novice tutorial on the line, installation is simple, always

CALLBACK:A callback is A function so is passed as an argument to another function and is executed after its parent func tion has completed.node. JS callback functionThe immediate manifestation of node. JS asynchronous programming is callbacks.Asynchronous programming relies on callbacks to implement, but it cannot be said that the program is asynchronous after us

Asynchronous programmingThe immediate manifestation of node. JS programming is callbacks, and asynchronous programming relies on callbacks: node uses a number of callback functions, all of which support callback functions. such as reading files.Here are the three nouns that do not understand threading and asynchronous and synchronous slightly.Threading: Simply sa

eventemitter = new events. Eventemitter ();//Create event handler var Connecthandler = function connected () { console.log (' connection succeeded. '); Trigger Data_received Event eventemitter.emit (' data_received ');} Bind Connection Event handler Eventemitter.on (' Connection ', Connecthandler); Use the anonymous function to bind data_received event Eventemitter.on (' data_received ', function () { console.log (' Data received successfully. ‘);});/ /Trigger Connection Event Evente

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

The first step is naturally installed, I am using webstorm this IDE, the installation is divided into 2 steps:1, install Nodejs, download the installation version under Windows, note that the MSI is the extension, and then the next step, nothing to say, as follows:32-bit msi:http://nodejs.org/dist/latest/64-bit msi:http://nodejs.org/dist/latest/2, install WebStorm8.0.3, as if will automatically find Nodejs installation path, do not need to configure what East;Install Webstorm, start it, then cre

???? A different way of learning opens up a new programmatic perspective A unique "synchronous learning" approach Copy explanation + video demonstration, text can inspire deep thinking, video can be reduced real-combat operation process. The first-line manufacturers have real strength of the programmer Ikcamp team gathered in the first-line factory rich experience of the code farmers, open source dedicated to each tutorial. Re

node. js Event Loopnode. JS is a single-process single-threaded application, but it supports concurrency through events and callbacks, so performance is very high.Each of the APIs for node. JS is asynchronous and runs as a standalone thread, using an asynchronous function ca

node. JS Learning SummaryIn order to answer a set of back-end topic began to understand the wonderful JS language, did not expect to spend the January time, collected a lot of information.Although the feeling has reached the entry state, but a lot of information is not fully understood, just quickly in the brain to establish an index, with the use of the follow-u

The examples in the previous tutorial can be separated from the nodejs directory dependency, that is, they can be executed at any location. The examples and compiling environments in this section must be placed under the nodejs directory, this is because the path is involved. To install an external module, we first need to install an external module, which is FelixGei... SyntaxHighlighter. all (); The examples in the previous

. ' output.txt ' //pipeline read and write operations //read input.txt file contents and write content to output.txt file readerstream. Pipewriterstream. Log "program execution complete" The code execution results are as follows:$ node main. Program execution Complete View the contents of the Output.txt file:$ cat Output. Novice Tutorial Official website address:www. Runoob. Example of a COM pi

1. First of all, you must install Node. JSWindows CMD enters the following command in Turn:CD C:\Program files\nodejs\NPM Install-g ExpressNPM install-g Express-generator2. Create an example ProjectWindows CMD enters the following command in Turn:CD C:\Program Files\nodejs\node_globalExpress-e MICROBLOG//I.E. ejs,-j (I.E. Jade)CD microblogNPM Install 3. Modify the HTTP server

(e.g. click button)7. What is event driven? An action caused by a trigger action (for example, a dialog box pops up after a button is clicked)function Clickit (e) { window.alert (' Button is clicked ')}var Button = document.getElementById (' #button ') button.addeventlistener (' click ', Clickit)8. What is an event-driven callback? In order to register a callback function for an event, but this callback function is not executed immediately, only when the event occurs, the callback funct

reduce the headache caused by Environment switching. Install To be honest, the installation is indeed time-consuming and error-prone. I will not introduce the installation method here. Here is a tutorial address: Http://www.11gz.com/blog/2011/06/22/windows-nodejs-configuration/ (steps are more detailed, I am referring to the tutorial ). Note that,When installing cygwin, try to install all packages a

{type} res * @param {type} req * @returns {Boolean} failed to return false Successfully returns the current cookie in SESSIONID */var getcookiesession = function (res, req) {var cookie = Httpparam.cookie (req, ' SESSIONID ') ); if (cookie) {var SessionID = cookie; return SessionID; } return false;};/ * * * * @param {type} sessionId "fetch a session from Redis" * @returns {false | session} */var getsession = function (sess Ionid, callback) {lib.redis.exist (sessionId, function (ret)

The original tutorial Https://github.com/nswbmw/N-blog/wiki/_pages the first chapter, due to the version and other reasons, in the original tutorial based on a slight change can be achieved.Environment:Win7 Flagship edition 64-bitnode.js:0.10.31mongodb:2.6.4express:3.xEffect: Registration Interface:Login interface:Login success:Post blog:Publishing success:Source code: blog/Blog/package.json{ "name": "blog

I. Download and install node. jshttps://nodejs.org/download/Double-click to run the installation (default installation address: C:\Program Files\nodejs or C:\Program Files (x86) \nodejs)　　Double-click to run the installation (default installation address: C:\Program Files\nodejs or C:\Program Files (x86) \nodejs)Second, running Cmd.exe　　C:\users\administrator>npm-v　　If error:Change system Environment variables: Add NPM Installation path: Preceded by s

that Console.log printing is an empty, not a [], read the English document understood wrong, "He first parameter would contain the Error object if an error occured, or null otherwise."I thought the return was wrong, and then I found." Length is actually returning a 0, pit!This.findonebyid = function (TableName, Wherejson, callback) { connection (function (mdbconn) { Mdbconn.collection (TableName, function (Err, collection) { if (err) { return;

Php Chinese network (www.php.cn) provides the most comprehensive basic tutorial on programming technology, introducing HTML, CSS, Javascript, Python, Java, Ruby, C, PHP, basic knowledge of MySQL and other programming languages. At the same time, this site also provides a large number of online instances, through which you can better learn programming... Reply: immature programmers only consider technical issues. The market is rational, considering the