Node.js Backend Fundamentals

📌 Overview

A structured repository covering core backend concepts in Node.js, focused on understanding how server-side systems work internally.

This includes modules, asynchronous execution, file handling, and basic server creation.

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📚 Topics Covered

1. Basics

• Node.js runtime
• Non-blocking architecture
• Event-driven model

2. Modules

• CommonJS (require, module.exports)
• ES Modules (import/export)
• Built-in modules (fs, path, os)

3. Event Loop & Async

• Call stack
• Microtasks vs macrotasks
• Async execution flow

4. File Handling

• Reading and writing files
• Streams
• File operations

5. JavaScript Fundamentals

• Scope and closures
• Callbacks and promises

6. Express (Basic)

• Creating server
• Routing
• Middleware basics

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🛠️ Tech Stack

• Node.js
• JavaScript

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📂 Repository Structure

nodejs-backend-fundamentals/
│
├── 01-basics/
├── 02-modules/
├── 03-event-loop/
├── 04-file-handling/
├── 05-js-fundamentals/
├── 06-express/
├── 07-playground/