heroku nodejs

node. JS is the work of the veteran C program ape Ryan Dahl (http://four.livejournal.com/), based on Google's famous open source JavaScript engine V8, to develop WEB I/O server two times (http ://nodejs.org/). The V8 itself is a very fast JavaScript engine that handles JS execution at a high speed. Related tests show that FireFox, Opera and IE JS engine speed is less than V8 come fast. And, it can be said that only the browser between the JS engine battle for a day without reducing,

System environment: Ubuntu 12.04 LTS 64bit First, through the Apt-get installation nodejs– failure (can see the following source installation method): Copy Code code as follows: ~ sudo apt-get Install Nodejs ~ sudo apt-get Install NPM ~ NODE-Vv0.6.12 ~ NPM-V1.1.4 Create working directory Copy Code code as follows: ~ mkdir Workspace ~ mkdir Workspace/

Each language has its own advantages, the combination of each to take the director of the program to execute more efficient or to say which implementation is simpler to use which, Nodejs is the use of child processes to invoke system commands or files, documents see Http://nodejs.org/api/child_ The Process.html,nodejs sub-process provides an important interface for interacting with the system, and its main

This article describes the Ubuntu 12.04 Server installation Nodejs as well as the upgrade method, Ubuntu installation Nodejs, and the upgraded instance tutorials, need a friend reference under. Because of the recent intention to study the next Nodejs, the results found that there is no suitable for first in the Nodejs

() Close:server.close () Error the practice of TCP Services (ii) Connection Events Data: One end executes write () and the other end triggers the event End: Disconnect at either end to trigger the event Connect: This event is used by the client to trigger when the socket server connection succeeds Drain: When the Write () is triggered at either end, the event is triggered by the current end Error: This event is triggered when an except

Install the latest version of Nodejs update Ubuntu software sourcesudo apt-get updatesudoinstall -y python-software-properties software-properties-Commonsudo add-apt-repository ppa:chris-lea/node. jssudo Apt-get UpdateInstalling Nodejssudo Install Nodejs sudo Install nodejs-legacysudoinstall NPMUpdate NPM's package image source for quick and easy downloadsudo npm

First, the preface Nodejs used some days, recently reviewed its API, the use of new features, in order to have a higher level of mastery, the summary of the API is different from the simple English version of the Chinese, will do more to expand and their own understanding, hoping to help everyone, first from the core of events began Nodejs's events implement an observer pattern that supports the core mechanism of

configuration files. In the terminal, enter the following command to replace Sudoapt-get--purge Remove Uninstall the program only. If you remove the program but leave the configuration file, enter the following command:Sudoapt-get Remove Solve the problem of the VI in Ubuntu can not use the arrow keys and BACKSPACEProgramme one:Problem:Ubuntu VI in the editing state of the arrow keys can not be used, as well as the grid key can not be deleted and so we are accustomed to some of the keys can not

Turn from: Https://segmentfault.com/a/1190000002741935#articleHeader3 This article will answer some questions for beginners of Nodejs: When should I throw an exception in a function I write, when should I pass it to callback, when it triggers eventemitter, and so on. What assumptions my function makes about the parameters. Should I check for more specific constraints? For example, whether the parameter is Non-null, is greater than 0, it looks like an

Nodejs receive POST request parametersHow the 1.1-browser sends POST request parameters 1.2-How the service side receives the POST request parameters POST request parameters are not spliced directly in the URL path, but are sent to the server request in the body of the request three elements: the request line, the request header, the request body 1.1-The way the browser sends the POST request parameters Post request parameters cannot be spliced direc

Nodejs internally provides a debug mechanism that allows the program to go into debug mode for developers to analyze code discovery problems step-by-step. a total of 3 boot parameters allow the program to enter debug mode, assuming that we want to debug the app.js. node Debug app.js node--debug app.js node--debug-brk app.js 3 modes have a certain difference in the form of debugging. Node Debug App.js 1. This way to start the pro

If you want to install the Nodejs not installed can go to download: http://nodejs.org/ 1, open cmd execute the following command: ①, we will first configure NPM's global module storage path and cache path, for example, I would like to put the above two folders in the Nodejs's home directory, under the Nodejs set up "Node_global" and "Node_cache" two folder. ②, start cmd, input: npm config set prefix "C:\P

is looking for a lightweight embedded database above node, as the representative of the embedded database, SQLite is undoubtedly an ideal choice. There are two--sqlite3 and realms in the library that integrates SQLite on NPM. Realm is an ideal option, originally designed for mobile apps and can be run on node, but not in Windows. Sqlite3 is a nodejs designed for the Nodejs, which is ecologically

This article is an introduction to the nodejs tutorial series. It mainly describes the features of nodejs, the module mechanism CommonJs (module reference, module definition, Module Identification, module implementation), packages, and NPM, this is a very detailed article. Preface If we don't want to learn nodeJs, we will get old... when the HTML5 waves hit us,

Nodejs Open HTTP service, run Hello Word Nodejs to open a service is very simple, we just install the Nodejs, casually find a directory, create a JS file, the following code to copy in, and then run, you can open Hello Word the simplest HTTP service! Const HTTP = require (' http ') const hostname = ' 127.0.0.1 'Const PORT = 3000Const SERVER = Http.createserver