What is node.js?

Posted by Jeffrey on Stack Overflow See other posts from Stack Overflow or by Jeffrey
Published on 2009-12-10T23:05:21Z Indexed on 2010/04/12 1:03 UTC
Read the original article Hit count: 443

Filed under:

node-js

|

JavaScript

|

evented-io

|

v8

I don't fully get what node.js is all about. Maybe it's because I am mainly a web based business app developer. Can someone please explain what it is and the use of it? Thanks.

My understanding so far is that:

The programming model is event driven, especially the way it handles IO.
It uses javascript and the parser is V8.
It can be easily used to create concurrent server apps.

Are my understandings correct? If yes, then what are the benefits of evented IO, is it just more for the concurrency stuffs? Also is the direction of node.js to become a framework like, javascript based (v8 based) programming model?

© Stack Overflow or respective owner

Related posts about node-js

Node.js Adventure - Node.js on Windows

as seen on Geeks with Blogs - Search for 'Geeks with Blogs'
Two weeks ago I had had a talk with Wang Tao, a C# MVP in China who is currently running his startup company and product named worktile. He asked me to figure out a synchronization solution which helps his product in the future. And he preferred me implementing the service in Node.js, since his worktile… >>> More
Node.js Adventure - Host Node.js on Windows Azure Worker Role

as seen on Geeks with Blogs - Search for 'Geeks with Blogs'
In my previous post I demonstrated about how to develop and deploy a Node.js application on Windows Azure Web Site (a.k.a. WAWS). WAWS is a new feature in Windows Azure platform. Since it’s low-cost, and it provides IIS and IISNode components so that we can host our Node.js application though Git… >>> More
Windows Azure PowerShell for Node.js

as seen on ASP.net Weblogs - Search for 'ASP.net Weblogs'
The Windows Azure PowerShell for Node.js is a command-line tool that allows the Node developers to build and deploy Node.js apps in Windows Azure using Windows PowerShell cmdlets. Using Windows Azure PowerShell for Node.js, you can develop, test, deploy and manage Node based hosted service in… >>> More
Sending data through POST request from a node.js server to a node.js server

as seen on Stack Overflow - Search for 'Stack Overflow'
I'm trying to send data through a POST request from a node.js server to another node.js server. What I do in the "client" node.js is the following: var options = { host: 'my.url', port: 80, path: '/login', method: 'POST' }; var req = http.request(options, function(res){ console… >>> More
Node.js Adventure - Storage Services and Service Runtime

as seen on Geeks with Blogs - Search for 'Geeks with Blogs'
When I described on how to host a Node.js application on Windows Azure, one of questions might be raised about how to consume the vary Windows Azure services, such as the storage, service bus, access control, etc.. Interact with windows azure services is available in Node.js through the Windows Azure… >>> More

Related posts about JavaScript

CHAT ROOMs 7 by 6

as seen on Stack Overflow - Search for 'Stack Overflow'
I am looking for chatroom on one page with 7 loggedin users and 6+rows for say 42 users.these users will keep on adding wthnew users.Need urgent help.A PRETTY UNUSUAL Q FOR MOST OF U.What is MORE REQ new features: Usernames are unique to users currently chatting You can see a "currently chatting"… >>> More
Integrating JavaScript Unit Tests with Visual Studio

as seen on Stephen Walter - Search for 'Stephen Walter'
Modern ASP.NET web applications take full advantage of client-side JavaScript to provide better interactivity and responsiveness. If you are building an ASP.NET application in the right way, you quickly end up with lots and lots of JavaScript code. When writing server code, you should be writing… >>> More
Has Javascript developed beyond what it was originally designed to do?

as seen on Programmers - Search for 'Programmers'
I've been talking with a friend about the purpose of Javascript, when and how it should be used, etc. He quoted that: JavaScript was designed to add interactivity to HTML pages [...] JavaScript gives HTML designers a programming tool HTML authors are normally not programmers… >>> More
PHP, javascript, single quote problems with IE when passing variable from ajax post to javascript fu

as seen on Stack Overflow - Search for 'Stack Overflow'
Hi! I have been trying to get this to work for a while, and I suspect there's an easy solution that I just can't find. My head feels like jelly and I would really appreciate any help. My main page.php makes a .post() to backend.php and fetches a list of cities which it echoes in the form of: <li… >>> More
Javascript in XSL that is loaded by Javascript

as seen on Stack Overflow - Search for 'Stack Overflow'
Is there anyway to have javascript run when a XSL sheet has been applied to an XML file by Javascript? I am using a JQuery plugin to apply the sheet to the xml but the javascript that is located inside of the XSL file will not run. I put the Javascript at the bottom of the file and it still does… >>> More