linkedlist.go
func (list *LinkedList) Length() uint {
	list.key.RLock()
	defer list.key.RUnlock()

	return list.length
}
func (list *LinkedList) Length() uint {
	list.key.RLock()
	defer list.key.RUnlock()

	return list.length
}
// Length returns the number of elements present in the LinkedList.