insert node at beginning of circular linked list in typescript

Ts program for insert node at beginning of circular linked list. Here more information.

// TypeScript Program 
// Insert node at beginning of circular linked list

// Define class of linked list Node
class LinkNode
{
	public data: number;
	public next: LinkNode;
	constructor(data: number, first: LinkNode)
	{
		this.data = data;
		this.next = first;
	}
}
class CircularLinkedList
{
	public head: LinkNode;
	// Class constructors
	constructor()
	{
		this.head = null;
	}
	// Insert node at begining of circular linked list
	public insert(value: number)
	{
		// Create a node
		var node = new LinkNode(value, this.head);
		if (this.head == null)
		{
			// First node of linked list
			this.head = node;
			node.next = this.head;
		}
		else
		{
			var temp = this.head;
			// Find the last node
			while (temp.next != this.head)
			{
				// Visit to next node
				temp = temp.next;
			}
			// Add node
			temp.next = node;
			// make new head node
			this.head = node;
		}
	}
	// Display node element of circular linked list
	public display()
	{
		if (this.head == null)
		{
			console.log("Empty Linked List");
		}
		else
		{
			console.log("  Linked List Element : ");
			// Get first node
			var temp = this.head;
			// iterate linked list
			while (temp != null)
			{
				// Display node
				console.log("  " + temp.data);
				// Visit to next node
				temp = temp.next;
				if (temp == this.head)
				{
					// Stop iteration
					return;
				}
			}
		}
	}
	public static main(args: string[])
	{
		var task = new CircularLinkedList();
		// Add following linked list nodes
		task.insert(8);
		task.insert(7);
		task.insert(6);
		task.insert(5);
		task.insert(4);
		task.insert(3);
		task.insert(2);
		task.insert(1);
		// Display node
		task.display();
	}
}
CircularLinkedList.main([]);
/*
 file : code.ts
 tsc --target es6 code.ts
 node code.js
 */

Output

  Linked List Element :
  1
  2
  3
  4
  5
  6
  7
  8


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