Example of using Meteor with Node. js to compile real-time chat applications
This article mainly introduces how to use Meteor with Node. js Code example of real-time chat application, Node
, support JS syntax
Mongod.exe: Service Side
Mongodump.exe: Backup tool
Mongorestore.exe: Recovery Tool
Mongoexport.exe: Export Tool
Mongoimport.exe: Import Tool
Mongostat.exe: Real-time performance monitoring tool
Mongotop.exe: Tracking Mongdb Instance read-Write Time tool
More detailed explanations or actions can be viewed: http://docs.mongodb.org/man
use Node-mongodb-native to operate MongoDB Library operationsNew database: The first step: Use the new database name; second step: Do the library related operations; If you do not take the second step, the database will not be createdView database: Show DBS;New table: Db.createcollection (' new table name to be created ');View current database table below: Show
In " using Angularjs," we mentioned how to introduce Angularjs in the node. JS Project, this time providing a very simple example that demonstrates instructions in Angularjs, data binding , Services and other content.I am ready to do the Web management system, different administrators will have different permissions, the administrator login to see the menu and hi
This article describes how to use multi-thread programming in nodejs. In this article, nodejsaddon is used to expand nodejs multi-thread programming with cc ++, for more information about node. JS, see the previous blog post. In implementing sleep in node. JS, I will introduce the usage of
The main application scenario of Jscex is "JavaScript asynchronous programming", but there is no limit on whether to run on the browser or server. Recently, Node. js is very popular and has just released the Native Windows version. Many people will use it to make small programs such as websites. At present, the most famous framework for developing websites using Node
This article describes how to use multi-thread programming in nodejs. in this article, nodejsaddon is used to expand nodejs multi-thread programming with cc ++, for more information about Node. js, see the previous blog post. in implementing sleep in Node. js, I will introduce the usage of
node. JS Service SideTo install the WS module Support firstNPM Install WSService side (Server.js)var GWS; var Websocketserver = require (' ws '). Server, new websocketserver ({port:9000 }), Wss.on (function (WS) { = ws; Console.log (' client connected '); Ws.on (function (message) { console.log (message); (Show, SetInterval);//Every 5 seconds the server pushes the message to the
1: Download node. js and install it, install it from NPM, choose to install it together.2:node-v display version, npm-v display version.3: I am here to agent to the Internet, first set up NPM agent, if the Internet does not need a proxy, you can skip this step.
NPM Config set proxy http://proxy3.bj.petrochina:8080NPM Config set Https-proxy http://proxy3.bj.
, Json.parse to convert the JSON text to an object varRetval=json.stringify (arr); Resp.end (retval);//Response Object End Response});//Server starts operation listening PortServer.listen ("localhost",function() {Console.log ("Server started operation, listening on port 3000 ...");});Page code:DOCTYPE HTML>HTMLLang= "Utf-8">Metahttp-equiv= "Content-type"content= "text/html; charset=utf-8"/>Head> title>Get data from node. jstitle> Scriptsrc=
', function (req, res) {res. send ('csser user is' + req. user. name );});
For simple cases such as route placeholder verification and forced change value, you only need to input one parameter (one parameter is supported). The exception thrown during this period will be automatically passed into next (err ).
app.param('number', function(n){ return parseInt(n, 10); });
You can also apply the callback function to multiple placeholders at the same time. For exa
; Body>HTML>Scripttype= "Text/javascript">functionrun () {//Changelitext ();}/****************************************************** the startup function called when the window is loaded ****************************************** ***********/$ (document). Ready (function() { $(". Side ul Li"). HTML ("1"); });// -Script>Server.js Code:varHttp=require (' http ');varFs=require (' FS ');varPath=require (' Path ');varMime=require (' MIME ');varCache={};functionsend404 (response) {Response.writ
This article mainly introduces how to add the insertBefore () function to js at a specified position. The example analyzes the techniques of insertBefore () function appending nodes, which has some reference value, for more information about how to add the node function insertBefore () in js at a specified position, se
This article describes how to save the information about the file sent by payload in Nodejs. For more information, see
1: accept files
Http://stackoverflow.com/questions/24610996/how-to-get-uploaded-file-in-node-js-express-app-using-angular-file-upload
You can use the following third-party Libraries
• Busboy and connect-busboy• Multiparty and connect-multiparty• Formidable• Multer
2: Save the file
Ps: no
corresponding document, the default option is--help.Implementation of Vue-init Sub-commandThe main function of Vue-init is to pull the project template file (official or homemade) under the specified git directory into the specified directory, using the following$ vue init There is still a need to parse the PROCESS.ARGV, so the commander.js is introduced in Vue-init, which generates a programProgram . Usage (' Next is to implement the pull template file, after processing, placed in the o
Source: http://www.jb51.net/article/50294.htmJS How to get ul Li iddocument.getElementsByTagName ("Li") [index].idHow do I get the number of LI in ul with JavaScript? document.getElementById (' Myul '). getElementsByTagName (' li '). lengthHTML DOM removechild () methodvar List=document.getelementbyid ("MyList"); List.removechild (List.childnodes[0]);JS Dynamic Add Delete ul node Li and related content
, Json.parse to convert the JSON text to an object varRetval=json.stringify (arr); Resp.end (retval);//Response Object End Response});//Server starts operation listening PortServer.listen ("localhost",function() {Console.log ("Server started operation, listening on port 3000 ...");});Page ANGULARJS Code:DOCTYPE HTML PUBLIC "-//w3c//dtd HTML 4.01 transitional//en" "Http://www.w3.org/TR/html4/loose.dtd ">HTMLNg-app= "Notesapp"> Head> MetaCharSet= "Utf-8"> title>Angularjs Get No
configuring Run Npm is CTRL + F5. Maybe you prefer F5, but F5 has been occupied by the Run Command. If you really want to grab it, cancel it first.
Open the HelloExpress example in Notepad ++ (seeInstallation and Use of Express), And press CTRL + F5 to see the following results:
Now, our Notepad ++ can be used for Node. js development. You don't have to switch
means that everything and every independent call and operation on it are a series of asynchronous callbacks. This makes Node. js run on one thread, which is different from other Web technologies. Each client request generates a new thread for processing. This is exactly the essence of non-blocking I/O.
Support for object databases
In Node. it is very common to u
This article mainly introduces several important knowledge points of node. js: The Role of node. js, callback, synchronous and asynchronous code, event loop 1, and the role of node. js,
The meaning of I/O. Move the mouse to see t
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