Quick introduction to NodeJS with small demos involving core modules.

1. Working With NodeJS
By Vu Tran
September 4, 2016

2. A Brief Introduction of Myself
• Self-taught since H.S.
• Past and Current Involvement:
• Worked with many high profile clients
• Consulting and startups
• Open-source
vutran @tranvu

3. What Is Node?
• Non-blocking event-driven JavaScript runtime
• Built on V8 (same engine used by Chrome)
What Isn’t Node?
• Language (JavaScript, Ruby, Python, etc.)
• Framework (Rails, Phoenix, Laravel)
• Server (Apache, Nginx, etc.)

4. Simple Web Server

5. Blocking I/O
• Synchronous executions
• Easier to read
• If you like standing in line at Starbucks

6. Non-Blocking I/O
• Asynchronous executions
• Higher concurrency

7. Pseudo Starbucks App

8. File System (fs)
• Access to the file system
• Async/Sync Methods
• Streams

9. Streams
• Great for handling big data
• pipe() chunks of data

10. Reading Large Files (fs + stream + readline)

11. Parsing Raw Data

12. Parsing Raw Data

13. Don’t Repeat Yourself!
• Too much code to remember
• Duplicate code through the entire project
• There’s a module for that!
• Write a new module if there isn’t one
• Publish your modules on npm/github
• Private modules