🔐Authentication & Authorization in JavaScript | Tokens & Local Storage Explained

Welcome to JavaScript Course – Video #26! 🎯

In this video, we are going to learn some of the most important concepts used in real-world web applications — Authentication, Authorization, Tokens, and Local Storage.

Whenever you log in to a website and continue using protected features without logging in again on every page, authentication and authorization mechanisms are involved.

In this video, we'll understand the concepts behind login systems, how tokens are used, and how Local Storage can be used to persist client-side data.

📚 Topics Covered in This Video

✅ What is Authentication?
✅ What is Authorization?
✅ Authentication vs Authorization
✅ Login Authentication
✅ User Login Flow
✅ What is a Token?
✅ Why are Tokens used?
✅ Token-based Authentication
✅ How Authentication Tokens work
✅ Storing Tokens on the Client
✅ Local Storage
✅ How Local Storage works
✅ Storing and retrieving data using Local Storage
✅ Using Tokens with Local Storage
✅ Protected Pages / Protected Resources
✅ Real-world Authentication Flow

🎯 Who Should Watch This Video?

✔ JavaScript Beginners
✔ Freshers
✔ Web Development Students
✔ Frontend Developers
✔ JavaScript Learners
✔ API Developers
✔ React.js Beginners
✔ Full Stack Development Students
✔ Students Learning Authentication
✔ Students Preparing for JavaScript Interviews
✔ Beginners to Experienced Developers

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