Function unshiftNode

unshiftNode<L extends IDoublyLinkedList<IDoublyLinkedListNode>>(
instance: L,
node: NonNullable<L["head"]>,
): void
Adds a node to the beginning of a doubly linked list.

Any pointers node already carries are overwritten, so a node that was linked elsewhere brings none of its former neighbours with it.
- Time Complexity: O(1)
- Space Complexity: O(1)
Type Parameters
- L extends IDoublyLinkedList<IDoublyLinkedListNode>
  The type of the list.
Parameters
- instance: L
  The list instance.
- node: NonNullable<L["head"]>
  The node to add.
Returns void
- Defined in src/core/doubly-linked-list/list.ts:175