What Node.js concepts have animations?

Event Loop (6 phases), Async/Promises execution, Express middleware chain, Streams backpressure, Clustering worker processes, EventEmitter event flow.

What makes these notes unique?

Animated step-by-step visualizations: Event Loop phases with callback queue, Express request lifecycle, Streams data flow, memory management patterns.

Is Node.js code included with animations?

Yes! Real Node.js code examples with animated execution flow, request/response cycles, async patterns, and performance optimization techniques.

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📘 NODE.JS COMPLETE NOTES – 150 PAGES TOPICS

SECTION 1

INTRODUCTION & FUNDAMENTALS

Pages 1–15

1 – What is Node.js?
2 – History of Node.js
3 – Why Node.js? (Advantages & Use Cases)
4 – Node.js vs Browser JavaScript
5 – Node.js Architecture (Single Thread + Event Loop)
6 – Installing Node.js & Setup
7 – Node REPL
8 – Running Node Files
9 – Global Objects in Node
10 – Process Object
11 – Understanding Modules
12 – CommonJS vs ES Modules
13 – Package.json Deep Understanding
14 – npm & npx Explained
15 – Creating First Node Project

SECTION 2

CORE MODULES

Pages 16–35

16 – File System (fs) Module Introduction
17 – Reading Files (Sync vs Async)
18 – Writing Files
19 – Appending Files
20 – Deleting & Renaming Files
21 – Streams Introduction
22 – Readable Streams
23 – Writable Streams
24 – Pipe Method
25 – Buffers in Node.js
26 – Path Module
27 – OS Module
28 – HTTP Module Introduction
29 – Creating HTTP Server
30 – Handling Routes Manually
31 – Serving HTML Files
32 – Serving JSON
33 – Handling Query Parameters
34 – URL Module
35 – Event Module

SECTION 3

ASYNCHRONOUS PROGRAMMING

Pages 36–50

36 – Synchronous vs Asynchronous
37 – Callback Functions
38 – Callback Hell
39 – Promises Introduction
40 – Promise Chaining
41 – async/await
42 – Error Handling in Async Code
43 – setTimeout & setInterval
44 – Event Loop Deep Dive
45 – Microtasks vs Macrotasks
46 – Process.nextTick()
47 – setImmediate()
48 – Blocking vs Non-Blocking
49 – Thread Pool (libuv)
50 – Interview Questions on Async

SECTION 4

EXPRESS JS

Pages 51–80

51 – What is Express.js?
52 – Installing Express
53 – Creating Express Server
54 – Routing in Express
55 – Route Parameters
56 – Query Parameters
57 – Middleware Introduction
58 – Built-in Middleware
59 – Custom Middleware
60 – Third-party Middleware
61 – Express Router
62 – Serving Static Files
63 – Template Engines (EJS Intro)
64 – Rendering Views
65 – REST API Introduction
66 – HTTP Methods (GET, POST, PUT, DELETE)
67 – Handling POST Requests
68 – Express JSON & URL Encoded Middleware
69 – Sending Status Codes
70 – Error Handling Middleware
71 – 404 Handling
72 – Project Structure Best Practice
73 – Environment Variables
74 – dotenv Package
75 – nodemon
76 – MVC Architecture
77 – Controller Logic
78 – Services Layer
79 – Modular Routes
80 – Express Interview Questions

SECTION 5

DATABASES

Pages 81–105

81 – What is Database?
82 – SQL vs NoSQL
83 – MongoDB Introduction
84 – Installing MongoDB
85 – MongoDB Compass
86 – CRUD in MongoDB Shell
87 – Mongoose Introduction
88 – Creating Schema
89 – Creating Model
90 – Saving Data
91 – Finding Data
92 – Updating Data
93 – Deleting Data
94 – Validation in Mongoose
95 – Middleware in Mongoose
96 – Relationships (Refs & Populate)
97 – Indexing
98 – Aggregation Basics
99 – Pagination
100 – Filtering & Sorting
101 – Connecting Express + MongoDB
102 – Environment Based Config
103 – MySQL Introduction
104 – Connecting Node + MySQL
105 – ORM vs ODM

SECTION 6

AUTHENTICATION & SECURITY

Pages 106–120

106 – Authentication vs Authorization
107 – JWT Introduction
108 – Creating JWT
109 – Verifying Token
110 – Password Hashing (bcrypt)
111 – Login System Implementation
112 – Protected Routes
113 – Role Based Access
114 – Cookies in Node
115 – Sessions
116 – CORS
117 – Helmet
118 – Rate Limiting
119 – Data Sanitization
120 – Security Best Practices

SECTION 7

ADVANCED NODE

Pages 121–135

121 – Cluster Module
122 – Worker Threads
123 – Streams Advanced
124 – File Upload (Multer)
125 – Sending Emails (Nodemailer)
126 – WebSockets (Socket.io Intro)
127 – Real-Time Chat Example
128 – Logging (Winston)
129 – API Documentation (Swagger)
130 – Testing (Jest Introduction)
131 – Unit Testing
132 – Integration Testing
133 – Deployment Overview
134 – Docker Introduction
135 – Scaling Node Applications

SECTION 8

PROJECTS & INTERVIEW PREPARATION

Pages 136–150

136 – Building REST API from Scratch
137 – Folder Structure Real Project
138 – Authentication Project
139 – CRUD Project
140 – Blog API Project
141 – Payment Integration Overview
142 – Error Handling Best Patterns
143 – Performance Optimization
144 – Caching (Redis Intro)
145 – API Versioning
146 – Clean Code Practices
147 – Common Mistakes in Node
148 – Debugging Node Apps
149 – Interview Questions (Advanced)
150 – Final Revision & Backend Roadmap

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📘 NODE.JS COMPLETE NOTES – 150 PAGES TOPICS

INTRODUCTION & FUNDAMENTALS

CORE MODULES

ASYNCHRONOUS PROGRAMMING

EXPRESS JS

DATABASES

AUTHENTICATION & SECURITY

ADVANCED NODE

PROJECTS & INTERVIEW PREPARATION

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