Javascript Program For Printing Reverse Of A Linked List Without Actually Reversing

// Javascript program to print reverse 
// of a linked list

// Head of list
let head;

// Linked list Node 
class Node {
    constructor(val) {
        this.data = val;
        this.next = null;
    }
}

// Function to print reverse of 
// linked list 
function printReverse(head) {
    if (head == null)
        return;

    // Print list of head node
    printReverse(head.next);

    // After everything else is printed
    console.log(head.data + " ");
}

// Utility Functions 

// Inserts a new Node at front of the list. 
function push(new_data) {
    /* 1 & 2: Allocate the Node & 
              Put in the data */
    new_node = new Node(new_data);

    // 3. Make next of new Node as head */
    new_node.next = head;

    // 4. Move the head to point to new Node */
    head = new_node;
}

// Driver code
// Create linked list 1->2->3->4
push(4);
push(3);
push(2);
push(1);

printReverse(head);
// This code is contributed by Rajput-Ji