Javascript Program For Writing A Function To Delete A Linked List

// Javascript program to delete 
// a linked list

// Head of the list
let head;

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

// Function deletes the entire
// linked list 
function deleteList() {
    head = null;
}

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

// Use push() to construct list 
// 1->12->1->4->1
push(1);
push(4);
push(1);
push(12);
push(1);

console.log("Deleting the list");
deleteList();
console.log("Linked list deleted");
// This code contributed by Rajput-Ji