Code and Learn
Code and Learn
If the workshop hasn't started yet:
- Learn Github - google for "Egghead Introduction to GitHub" (first 4 lessons)
- Ensure that Git is installed on your machine (git-scm)
- Go through Building.md from nodejs on Github and ensure that you have Prerequisites software installed
- install VSCode
Trivikram Kamat
Twitter: @trivikram
Github: @trivikr
Ashish Kaila
Twitter: @ashishkaila
Github: @akaila
What will you learn?
- Quick history up to V8
- CPU and machine code
- JavaScript and ECMAScript
- JavaScript Engines
- Chrome's V8
- How can JavaScript manage a server?
- What problems Node.js solves
- Let's write a Node.js server
- Explore Node.js documentation
- Dig into the source code
- Create and submit a PR live on stage!
- Create more PRs
How popular is Node.js?
- Most number of module counts for any language
- Most popular language on Github
- Most popular technology on StackOverflow
- Most popular language on RedMonk
Pre-requisites
Go through Getting Started with Node.js core to fork, clone and build the repository on your machine
CPU and Machine Code
Instruction Sets
-
ARM
-
IA-32
-
MIPS
-
x64
A standard on which JavaScript is based on
JavaScript Engine
Program which executes JavaScript code
JavaScript
Code
Machine
Code
Chrome's V8 engine
JavaScript
Code
Machine
Code
Your C++ Program
JavaScript
Code
Machine
Code
What JavaScript had to do to manage a server?
- Better ways to organize our code into reusable pieces
- Ways to deal with files and databases
- Ability to communicate over the internet
- Ability to accept standard request and send responses
Why are we excited about Node.js?
- Extremely simple and minimal
- Easy to discover and consume packages
- Increase in developer productivity
- True asynchronous I/O operations
Let's install Node.js!
Install Node.js using nvm curl command
Your first Node.js server
const http = require("http");
http.createServer((req, res) => {
res.end("Hello World!\n");
}).listen(3000);Copy the above code or clone from