2705. Compact Object | Remove Empty Values from Object in JavaScript

Welcome to Day 27 of the 30 Days of JavaScript challenge! 📆

Today’s challenge is “Compact Object” — a clever way to remove empty values from objects and arrays! 🔥

📌 What You’ll Learn:
✅ How to remove falsy values from objects and arrays
✅ Recursively filter out null, undefined, false, 0, and ''
✅ Clean, elegant recursion technique for nested structures

🔗 LeetCode Problem:
https://leetcode.com/problems/compact-object

💡 Real-world use case: Filtering out unnecessary data in API responses, cleaning input data, etc.

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