Sfd2012Hanoi Nguyễn Hà Dương - Introduction to Node.js
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Node.js is a JavaScript runtime built on Chrome's V8 JavaScript engine. It is used for building fast and scalable network applications like web servers. It provides event-driven, non-blocking I/O which makes it very fast. Some common uses of Node.js include writing highly concurrent server apps, building real-time apps that share data between server and client, and peer-to-peer web programming with websockets. Popular Node.js frameworks include Express, TowerJS, and tools include NPM, Jade, and Socket.IO. The presentation demonstrates Node.js's non-blocking callback model and how to install and use Node.js for simple HTTP and echo servers.
![Node.js Introduction
Duong “Yang” H. Nguyen, @cmpitg
Fedora Ambassador, Certified Mozillian
Hanoi Community Space
cmpitg [at] gmail dot com
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Sfd2012Hanoi Nguyễn Hà Dương - Introduction to Node.js
- 1. Node.js Introduction Duong “Yang” H. Nguyen, @cmpitg Fedora Ambassador, Certified Mozillian Hanoi Community Space cmpitg [at] gmail dot com This document is licensed under the terms of Creative Commons Non-commercial Share-Like 3.0 Unported
- 2. Agenda What Node.js is and is not? Why Node.js? How to use? (with demo) As a scripting engine Best uses (briefly) Frameworks/Tools Questions
- 3. What Node.js is and is not? Is/does A framework Providing evented, non blocking I/O Built on top of Google's V8 JS environment NOT Very very fast! A web framework: –Ruby on Rails – Django – Yii Multi-threaded
- 4. Why Node.js? ● Is JavaScript! ● Event-driven, non-blocking ● Fast as hell ● Easy to scale ● V8 is well supported by Google ● And fun!
- 5. Why Node.js? Callback demo: setInterval(function () { console.log("Hello World") }, 1000); console.log("Done setting!");
- 6. How to use? Installation: Install Node.js – – Install NPM – Install modules Demos: – Simple HTTP server – Simple echo server
- 7. As a Scripting Engine Modules: – Processes & Child Process – Filesystem – Utilities Docs: http://nodejs.org/api/
- 8. Best Uses Writing highly concurrent server applications Applications which share between server and client Peer-to-peer web programming using websockets And of course – highly concurrent web programming
- 9. Frameworks/Tools NPM – Node Package Manager Express – Minimalistic MVC web framework TowerJS – Rails-like web framework Jade – Template engine Socket.IO – Websocket library … and much more!
- 10. Thank you for your attention!