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What is node.js?
Usages of Node.js - What obstacles is it aiming to provide a ramp for?
What is the correct scenario to use server side javascript? like node.js What kind of problems it solves?
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[6 solid reasons to use node.js](http://raynos.org/blog/19/6-Solid-reasons-to-use-node.js) – Raynos Dec 22 '11 at 12:24
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My question was not specific to node.js, but server side script in general. Thanks. – Tony Dec 22 '11 at 12:58
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- Node.js solves the problem of serving many concurrent users from I/O based servers.
- By I/O I mean that little to none computation is done in the request response cycle from the server part.
- By concurrent I meany that thousands of users can keep a connection open with the server.
- Having a persistent connection allows real time communication, the server can push over the opened connection, in a sense this way the server can be thought of as initiating the communication (comet, server push).
All this allows having a large user-base with little server resources and real-time communication (chat etc).
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I don't quite understand your point. Is this something like long polling? – ZolaKt Dec 22 '11 at 12:13
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1@SergeiTulentsev: is it used just for long polling, or are there any other significant advantages? If it is only for long polling why not use a COMET approach, why resort to javascript? – ZolaKt Dec 22 '11 at 12:17
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It is used for all sorts of things. Some people serve HTML with it. Use what you're familiar with, not what some guy on the internet tells you to. :-) – Sergio Tulentsev Dec 22 '11 at 12:19