Flatten a Nested Array in JavaScript | Recursion Explained Step-by-Step

In this video, we’ll solve one of the most common JavaScript interview questions —
👉 Flatten a Nested Array o(multi-level flatten).

You’ll learn step-by-step:
✅ Brute force using .flat(Infinity)
✅ Recursive flatten for arrays

We’ll also break down time and space complexity and visualize the recursion process.
Perfect for anyone preparing for JavaScript, DSA, or frontend interviews.

📘 Topics Covered:

JavaScript recursion explained

Flatten arrays

DSA interview patterns in JS

Real-world flatten use cases

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Видео Flatten a Nested Array in JavaScript | Recursion Explained Step-by-Step канала Build Heaven Dev