Welcome to Unlocking NodeJS! 🚀 In this video (Episode #24), we’ll cover Mongoose Relationships & Population in a beginner-friendly way. You’ll learn how to connect collections in MongoDB and fetch related data using Mongoose’s powerful populate() feature. PDF Link → () Github Code Link → ( ) 🔑 What you’ll learn in this video: What are relationships in MongoDB One-to-One, One-to-Many, Many-to-Many (concept overview) Referencing documents using ObjectId Using populate() to fetch related data Nested population basics Real-world example: User → Posts relationship 📌 Watch the full playlist here: ( 📌 Watch the full Javascript playlist here: ( 📌 Previous video: ⚡ About Unlocking : A complete beginner-to-advanced series on , simplifying backend concepts with real examples for students and beginners. 💡 Don’t forget to subscribe for more coding tutorials → @LokiUnlocked 👍 Like this video if you found it helpful 💬 Drop your questions — I’ll reply! #NodeJS #Mongoose #MongoDB #Populate #UnlockingNodeJS #BackendDevelopment