LeetCode 206: Reverse Linked List | Iterative JavaScript Solution

In this video, I solve LeetCode 206: Reverse Linked List using a clean and efficient iterative approach in JavaScript.

The trick is to use three pointers (prev, curr, and next) to reverse the direction of .next pointers one node at a time. This solution works in O(n) time and O(1) space — no recursion, no extra list.

I walk through how the pointers shift, what to watch out for, and how to return the new head of the reversed list.

What You’ll Learn:
✅ How to reverse a linked list iteratively
✅ The 3-pointer pattern: prev, curr, next
✅ Why this is done in-place
✅ Time & space complexity explained

Chapters:
0:00 - Problem Overview
0:40 - Solution walkthrough
6:20 - JavaScript Code Walkthrough

💬 Want to see the recursive version too? Comment below!

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