The null object pattern replaces null values within a specific object with a custom null object that is of the same class. The null object's fields will have default values, preventing it from causing a null pointer exception.
Example
f we don't use ...
![[TypeScript] 자료 구조로 담아내기. #12 - 연결 리스트(with. null 노드)](https://cdn.hashnode.com/res/hashnode/image/stock/unsplash/5v235ueAU58/upload/265377fe2e8da28d69701f873c907dc4.jpeg)
