tl;dr Null Objects help avoid forcing clients to make explicit checks for null or undefined when obtaining an object from a container or collection. Null Object is related to the Optional or Option type found in many languages today, but there are differences, centering on whether the "null-ability" should be directly visible to the client or not.
Some questions arise out of this:
A Null Object tends to lead to several consequences:
A couple of different takes on the Null Object include:
Last updated: 25 February 2022
Tags: pattern behavioral