.NET Covariance and Contravariance

Topic | v1 | created by jjones on Mar 4, 2021 |

Description

Covariance and contravariance are terms that refer to the ability to use a more derived type (more specific) or a less derived type (less specific) than originally specified. Generic type parameters support covariance and contravariance to provide greater flexibility in assigning and using generic types.

Source docs.microsoft.com/en-us/dotnet/standard/generics/covariance-and-contravariance