Notes - Node.js Bootcamp

Day 1: Introduction to Node.js and Building a Simple Server

Topic: What is Node.js?

Definition and Purpose
History and Evolution
Real-life analogy: Node.js as the "engine" of a car, driving server-side operations

Topic: Setting Up Node.js Environment

Installing Node.js
- Download and install from the official Node.js website
- Verify installation using node -v and npm -v

Topic: Understanding the Node.js Architecture

Single-threaded Event Loop
Non-blocking I/O
Real-life analogy: A chef managing multiple orders at once

Topic: Writing Your First Node.js Program

Creating a simple JavaScript file (hello.js)
```
console.log("Hello, Node.js!");
```
Running the file using Node.js
```
node hello.js
```

Topic: Building a Simple Web Server

Importing the HTTP module

Creating and running a basic server

const http = require('http');

const server = http.createServer((req, res) => {
  res.statusCode = 200;
  res.setHeader('Content-Type', 'text/plain');
  res.end('Hello, World!\\\\n');
});

server.listen(3000, '127.0.0.1', () => {
  console.log('Server running at <http://127.0.0.1:3000/>');
});

Testing the server in a web browser