Linked list in JavaScript
Practice this questionWANT TO UNDERSTAND THE CONCEPT FIRST?Learn Linked list in JavaScript
Node structure
class ListNode {
constructor(val) {
this.val = val;
this.next = null;
}
}Problems to practice
- Reverse Linked List
- Middle of Linked List
- Detect Cycle
- Remove Nth Node from End
- Merge Two Sorted Lists
- Intersection of Two Linked Lists
Example: reverse linked list
function reverseList(head) {
let prev = null;
let curr = head;
while (curr) {
const next = curr.next;
curr.next = prev;
prev = curr;
curr = next;
}
return prev;
}Adapted from 16_DSA_JAVASCRIPT.md · “4. Linked list in JavaScript”. Code examples are study fragments. Difficulty and core labels are editorial estimates; version-specific behavior should be checked against your project.