⚛️ Day 64–65: Redux (Introduction to State Management)
BACKEND
Day 72 – Express.js Basics and REST APIs
Day 73 – Express Routing Advanced Notes
Day 74 – MongoDB Basics (Introduction, Documents, Collections, CRUD)
Day 75 – Mongoose Detailed Model + EJS Form + Saving Data
Day 76 — Database Relationships (Embedding vs Referencing)
Day 77 – Authentication Basics (Hashing + Signup Flow)
Day 78 – Login + Logout Flow (bcrypt.compare + JWT)
Day 79 – Middleware + JWT Verification
Day 80 – Error Handling + Validation (Joi) + Clean Middleware