JavaScript Objects in Hindi | CRUD, Destructuring, this & Memory Internals Explained

🚀 JavaScript Objects Explained in Hindi – From Basics to Memory Internals
In this video, you’ll learn JavaScript Objects step by step — starting from creating objects, CRUD operations, and property access, to destructuring, methods, and this keyword.
We go deep into internals like copy by reference, shallow vs deep copy, structuredClone, symbols as keys, and how objects & arrays are actually stored in memory using maps, pointers, and references — explained in simple Hindi with computer-science logic.
This lecture is must-watch if you want strong object fundamentals for real projects and interviews.

📌 Topics Covered in This Video:

📦 Object Basics
✅ Introduction
✅ Creating Objects
✅ Printing Objects
✅ Accessing Properties (Dot Notation)
✅ CRUD Operations (Create, Read, Update, Delete)
✅ Object Keys Are Strings
🔑 Accessing Properties Dynamically
✅ Bracket Notation (Dynamic Keys)
✅ Bracket Notation for Keys with Spaces
🔁 Copy & References
✅ Copy by Reference Explained
🧰 Object Utility Methods
✅ Object.keys()
✅ Object.values()
✅ Object.entries()
🔄 Iteration
✅ for...in Loop (Iterating Keys)
✅ for...in Loop (Accessing Values)
✅ for...of Loop with Objects
🎯 Destructuring
✅ Object Destructuring
✅ Array Destructuring
✅ Renaming Destructured Variables
⚙ Methods & this
✅ Adding Methods to Objects
✅ Calling Object Methods
✅ this Keyword Explained
✅ Why Use this
🪜 Nested Objects
✅ Nested Objects
✅ Accessing Nested Properties
📋 Copying Objects
✅ Shallow Copy using Spread Operator (...)
✅ Shallow Copy Problem (Nested Objects)
✅ Deep Copy using structuredClone()
✅ Homework: structuredClone() Limitations
🧠 Advanced Object Concepts
✅ Number Keys in Objects
✅ Arrays Are Objects (Proof)
✅ Symbols as Object Keys
💾 Objects & Memory Internals
✅ Objects & Memory Management
✅ Arrays in Memory
✅ References in Arrays (Strings & Objects)
✅ Objects in Memory (Maps & Pointers)
✅ Object Structure in Memory
✅ Memory Optimization in Object Structure
✅ const Array Push Problem (Pointer Logic)
📚 Homework & Conclusion
✅ Homework: Maps, Pointers & Hash Maps
✅ Conclusion & Practice Tasks

🎯 Who Should Watch This Video?

✔ JavaScript Beginners
✔ Frontend / Full-Stack Learners
✔ Interview Preparation Students
✔ Anyone confused about Objects & Memory

🧰 Tools & Technologies Used:

• JavaScript (ES6+)
• VS Code
• Browser Console
• Node.js

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