Node js quick-tour_v2
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This document introduces Node.js, a platform for building scalable server-side web applications using JavaScript. It provides a brief history of Node.js, describes its key features like non-blocking I/O and the V8 JavaScript engine. Examples are given for building HTTP servers and clients. Common modules for file system access, child processes and more are demonstrated. The performance of Node.js is highlighted for building real-time applications that handle many concurrent connections with few system resources.
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Node js quick-tour_v2
- 1. Server-Side JavaScript Developement Node.JS Quick Tour q3boy <q3boy1@gmail.com> from http://cnodejs.org/
- 2. Server-Side JavaScript Development
- 3. Aptana Jaxer (SpiderMonkey) Helma (Rhino)
- 4. • •
- 5. Revelutions in 2009 • CommonJS (ServerJS), by Dangoor • JSConf, by Chris Williams & Iterative Designs • Node, by Ray Dahl.
- 6. Node's goal is to provide an easy way to build scalable network programs -- nodejs.org
- 7. Ray Dahl
- 8. • 1/5/2009 Ryah Dahl • 2/15/2009 • 5/31/2009 • ...... • 11/16/2010 v0.3.1
- 9. • wiki 600 module • 20 •
- 10. • libev (event loop) • libeio (nonblocked posix, thread pool) • v8 (javascript engine by google)
- 11. • • •
- 12. io io
- 13. io io
- 14. - • • •
- 15. - • cpu •
- 16. - Web Worker
- 17. • AMD Opteron 2200 , 4G RAM • socket client 20,000+ qps • socket server 17,000 qps • http server 4,400 qps • 30~40m • see more. <http://nodejs.kongwu.net/blog/? p=8>
- 18. • SSL • Windows • 1G (by v8)
- 19. • Web • • Spider
- 20. Digg in the node
- 21. $ git clone git://github.com/ry/node.git $ cd node $ ./configure --prefix=$HOME/node $ make install
- 22. Hello World! Familiar & Simple
- 25. io $ node nonblocking.js Reading my.txt ... my.txt Here is contents in "my.txt".
- 26. HTTP
- 27. TCP $ node tcpServer.js & $ telnet locahost 1234 Welcome! > Node is so Cooool. Node is so Cooool. >
- 28. $ node watchFile.js & $ sleep 3; touch my.txt the current mtime is: 1292594780000 the previous mtime was: 1292594752000
- 30. String vs Buffer String • • node v8 String , socket memcopy • v8 gc
- 31. String vs Buffer With String
- 32. String vs Buffer With Buffer
- 33. With String
- 34. With Buffer
- 35. Want to see more?
- 36. • PHP: pear • Python: PyPI, setuptools • Ruby: Gems • Node:
- 37. $ cat >>~/.npmrc <<NPMRC root = ~/.node_libraries binroot = ~/bin manroot = ~/share/man NPMRC $ curl http://npmjs.org/install.sh | sh $ npm ls $ npm install package_name $ npm update
- 38. IDE base on node http://www.cloud9ide.com/
- 39. Links • http://www.commonjs.org/ • http://nodejs.org/ • http://howtonode.org/ • https://github.com/ry/node/wiki • https://github.com/ry/node/wiki/modules • https://github.com/isaacs/npm
- 41. Node in Taobao • UED • nodejs-kissy by <bachi@taobao.com> • EDP • http://cnodejs.org/ ( node , coming soon) • node-reverse-proxy ( , , coming soon) • node-myfox (mysql 2011 Q1) • node-glider ( 2011 Q2) • node-kvproxy (key-value 2011 Q2)