Linked Lists are one of the most fundamental data structures in JavaScript, allowing efficient insertion and deletion of elements at the beginning or end of a list. This curated list of JavaScript Linked List Coding Practice Problems will help you master linked list operations. Whether you're a beginner or an experienced developer, these problems will strengthen your linked list manipulation skills and problem-solving abilities.
Linked List Practice Problems
Easy
- Move Last Element to Front
- Print the Middle of a Linked List
- Detect Loop in a Linked List
- Find the Length of a Linked List
- Delete Middle Node of a Linked List
- Insert a Node in a Sorted Linked List
- Delete a Node in a Linked List
- Find Nth Node from End
- Reverse a Linked List
- Remove Duplicates from Sorted Linked List
- Intersection Point in Y-Shaped Linked Lists
- Swap Kth Node from the End
- Check if a Linked List is Circular
- Rotate a Linked List
- Delete Alternate Nodes in a Linked List
- Split a Linked List into Two Halves
- Pairwise Swap Nodes
- All Occurrences of a Given Key
Medium
- Intersection of Two Linked Lists
- Find Pair with Given Sum in Doubly Linked List
- Find the Starting Point of a Loop
- Rearrange Linked List in Place
- Reverse a Doubly Linked List
- Flatten Binary Tree to Linked List
- Merge K Sorted Linked Lists
- Segregate Even and Odd Nodes in Linked List
Hard
- Remove Every Kth Node in a Linked List
- Reverse Linked List in Groups
- Clone a Linked List with Next and Random Pointers
- Remove Loop in Linked List
- Merge Sort for Linked List
- QuickSort on Linked List
- LRU Cache Implementation using Linked List
- Convert Binary Tree to Doubly Linked List
- Delete N Nodes After M Nodes
- Merge Linked List into Another at Alternate Positions
- Deletion from Circular Linked List
- Delete Without Head Pointer
- Implement Queue Using Linked List
- Implement Stack Using Singly Linked List
- Sort Linked List of 0s, 1s, and 2s
- Merge Two Sorted Linked Lists
- Longest Palindrome in Linked List
Linked List Quiz
Test your knowledge of Linked List in JavaScript with the following Quiz: