Node js quick-tour_v2

Server-Side JavaScript Developement Node.JS Quick Tour q3boy <q3boy1@gmail.com> from http://cnodejs.org/

Server-Side JavaScript Development

Aptana Jaxer (SpiderMonkey) Helma (Rhino)

••

Revelutions in 2009• CommonJS (ServerJS), by Dangoor• JSConf, by Chris Williams & Iterative Designs• Node, by Ray Dahl.

Nodes goal is to provide an easyway to build scalable networkprograms -- nodejs.org

Ray Dahl

• 1/5/2009 Ryah Dahl• 2/15/2009• 5/31/2009• ......• 11/16/2010 v0.3.1

• wiki 600 module• 20•

• libev (event loop)• libeio (nonblocked posix, thread pool)• v8 (javascript engine by google)

•••

-•••

-• cpu•

- Web Worker

• 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>

• SSL• Windows• 1G (by v8)

• Web•• Spider

Digg in the node

$ git clone git://github.com/ry/node.git$ cd node$ ./configure --prefix=$HOME/node$ make install

Hello World!Familiar & Simple

$ node singleThread.js1234

CommonJS$ node CommonJS.jsfoobar

io$ node nonblocking.jsReading my.txt ...my.txtHere is contents in "my.txt".

TCP $ node tcpServer.js & $ telnet locahost 1234 Welcome! > Node is so Cooool. Node is so Cooool. >

$ node watchFile.js &$ sleep 3; touch my.txtthe current mtime is: 1292594780000the previous mtime was: 1292594752000

$ node childProcess.jshelloworld

String vs Buffer String•• node v8 String , socket memcopy• v8 gc

String vs Buffer With String

String vs Buffer With Buffer

With String

With Buffer

Want to see more?

• PHP: pear• Python: PyPI, setuptools• Ruby: Gems• Node:

$ cat >>~/.npmrc <<NPMRCroot = ~/.node_librariesbinroot = ~/binmanroot = ~/share/manNPMRC$ curl http://npmjs.org/install.sh | sh$ npm ls$ npm install package_name$ npm update

IDE base on node http://www.cloud9ide.com/

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

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)

Node js quick-tour_v2

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