2. Intro
Good old javascript
But server side
Fully asynchronus
“Buzz” technology
3. Use cases
Real time web applications
Messaging
File download
Anything that spends lot of time waiting for
something
4. Differences from Web browser
CommonJS – http://wiki.commonjs.com
Modules
Npm – http://www.npmjs.org
File system, external process and network API
5. Programming paradigm
Non blocking operations
Functional programming
Lazy – doing only when needed
Event based
Do something when something happens
6. Example
HTTP server, which
serves movie.avi from
current directory
7. Modules
require();
exports functions and
variables from from
files module.exports
8. callbacks
most common code
construct
functions are
variables
non-blocking
“this” magick
– var self = this; trick
