to the original exports}) (module, module. exports); return module. exports ;}
So naturally:
Console. log (module. exports === exports); // true // Therefore, the operation of exports is module. exports.
The exports in Node. js is a copy of the module. exports reference. You can use exports to modify the attributes ex
This article describes in detail the classification of node. js asynchronous programming and the problems existing in asynchronous programming, which are very detailed and meticulous. We recommend this article to our friends. Currently, a large number of asynchronous operations are required, and actual pages are more and more inclined to be single-page applications. Backbone, angular, knockout and other fra
This article mainly introduces Node. examples of simple web page capturing functions implemented by js. This article uses libraries such as PhantomJS and node-phantomjs to implement these functions. For more information, see the following: web page capturing is a well-known technology, however, there are still a lot of complexities. Simple Web crawlers are still
chapter, the grandmother finds out his conscience and writes a callback function again.By convention, we should first write the framework: The Code is as follows:# Include
Using namespace v8;
Handle
RunCallback (const Arguments args)
{
HandleScope scope;
//...Return scope. Close (Undefined ());}Then we decided on its usage as follows:Func (function (msg ){Console. log (msg )
Module)
Stability: 5-locked
Node has a simple module loading mechanism. The files and modules in node correspond one to one. For example, foo. js loads the circle. js module in the same folder.
Foo. js content:
[Javascript]Console
Node. js network communication module implementation analysis, node. js Network Communication
Preface
Presumably, we should use Node. js most to create http services. Therefore, for every Web Development Engineer,
http = require ('http'); http. createServer (function (req, res) {res. writeHead (200, {'content-type': 'text/html; charset = UTF-8 '}); res. end ('I am using Node. js Write Program \ n ');}). listen (4000, "127.0.0.1"); console. log ('server running at http: // 127.0.0.1: 4000 /');
Then go to the installation directo
configure, just run node-gyp build directly.Nodejs usageCreate an index. js and see how to use this module: The Code is as follows:Var sleep = require ('./build/Release/hello. node'). sleep;Console. log (new Date );Sleep (1000 );Console
This article describes how to build a Node. js development environment in Linux. Node allows JavaScript programs to be explained and run in the local operating system environment. For more information, see
1. install node. js in Linux
Ubuntu:
sudo apt-get install nodejs np
In-depth understanding of the node. js http module, and in-depth understanding of node. js
The http module is mainly used to build an HTTP server and client. The HTTP module must be called to use the http server or client functions.
Create a server
Var http = require ("http"); var url = require ("url"); // create a ser
object.
Finally, the server object is started and the log information is output.
Note: When creating a server object, you can provide the host name, IP address, Unix socket file, or the pipe bound to the server name in Windows.
2. start the serverRun the following command:
The code is as follows:
$ Node server. js
Access http: // 127.0.0.1: 3000/. the browser
This article describes how to create a web calculator using node. js + express. For more information, see
Environment:
HOST: WIN10
Express installation:
1. Install express-generator
Enter the following command:
npm install -g express-generator
2. Install express
Enter the following command:
npm install -g express
3. verify whether the installation is successful
Enter the command: express-V
View help: e
Introduction to the use of _ dirname in Node. js, node. js _ dirname
Preface
This article mainly introduces the use of _ dirname in Node. js for your reference. Let's take a look at the details below:
The method is as follows:
configure, just run node-gyp build directly.Nodejs usageCreate an index. js and see how to use this module: The code is as follows:Var sleep = require ('./build/Release/hello. node'). sleep;Console. log (new Date );Sleep (1000 );Console
Node. js asynchronous I/O learning notes, node. js learning notes
The term "Asynchronous" is widely used in the Web 2.0 wave, which swept the Web along with Javascript and AJAX. Asynchronous programming is rare in most advanced programming languages. PHP can best reflect this feature: it not only shields Asynchronizati
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