This is my sum up about NodeJS on July 2011, base on some slides (of geeks in my list from BarCamp Saigon 2011). Just a fastfood of what NodeJS is, why is get buzz at the moment.
specs
- JS and C++ code
+ and commonJS module mechanism
——–> on NodeJS binding (http socket IO …)
——–>——–> on JS engine V8 + ThreadPool-libIO + EventLoop-libEV + … - programming style: evented with callback function, no thread
- non blocking IO
- DB support: mongodb couchdb mysql redis
- package (module of NodeJS) is NPM (not available on Windows?)
- IDE support: bad, no great debugger, can use cloud9 online IDE
- hosting: joyent heroku cloudfoundry dotcloud
when to use it?
- chat/messaging
- real-time applications
- intelligent proxies
- high concurrency applications
- communication hubs
- coordinators
something bad
- so young, immature
- lots of stuffs to look at, must lookup API from internet, and remember yourself (function name, parameter, …)
- retro compatibility, API is (frequently) subject to change
- hard to find organized (and centralized) and authoritative information
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