29. Linked List Set Method Step By Step Explanation | Master DSA in JavaScript

In this video, we explore the set method in a singly linked list, which allows you to update the value of a node at a specific index. This is a core operation when working with linked lists and an important concept to understand for technical interviews and real-world applications.

You’ll learn:
✅ What the set(index, value) method does in a linked list
✅ How it differs from setting values in arrays
✅ How to locate the target node using traversal
✅ How to update the node’s value once found
✅ A complete JavaScript implementation with clear explanation
✅ Visual step-by-step breakdown of the logic

We’ll also reuse the get method internally to find the node at the given index and then modify its value. This helps reinforce how linked list methods can build on each other for cleaner, modular code.

This video is part of our Data Structures in JavaScript series where we simplify DSA topics and implement them using JavaScript with clean and readable code.

📌 Who is this for?
Beginners learning data structures
JavaScript developers brushing up DSA skills
Interview prep for frontend/backend roles
Anyone wanting a deeper understanding of how linked lists work

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