NodeJS By Examples

NodeJS characteristics

• use Chrome V8 JS runtime
• event driven and non-blocking I/O
• created 2009 by Ryan Dahl and turned over in 2012 by  Isaac Schlueter
• sponsored by Joyent Cloud (Scott Hammond)
• uses NPM with >120000 modules (packages)
• everything is asynchronous

Synchronous or blocking executes row by row in your code.

Asynchronous or non-blocking means that you do each async methos starts from brggining. You dont have to wait response.