Intro to Node.JS

Transcript

1. Intro to Node.JS
2. What is Node.JS? • JavaScript out of the browser • Bindings to perform File and Network I/O ◦ Behavior not present in JavaScript
3. Who uses Node.JS? • Trello http://blog.fogcreek.com/the-trello-tech-stack/ • Microsoft • Yahoo! • eBay • LinkedIn • Twitter More listed at: https://github.com/joyent/node/wiki/Projects,-Applications,- and-Companies-Using-Node
4. What are some benefits of using Node.JS? • Very easy to get started • Handles I/O elegantly • Concurrency made easy ◦ Blocking operations use callbacks ◦ Single threaded ◦ Thread pool for I/O ◦ Handles thousands of concurrent users • It's friggen' JavaScript!
5. A reference point http://blog.mixu.net/2011/02/01/understanding-the-node-js-event-loop/
6. How do we perform I/O? What's different about the Node.JS example?
7. Different ways of handling I/O
8. The event loop
9. Node.JS Architecture
14. • I/O intensive API's • Realtime apps • Most websites • When you want your API to speak JSON natively Use Node Don't use Node • CPU bound • You hate JavaScript