The concepts of Covariance and Contravariance in C# might initially sound complex, but fear not! By the end of this article, you’ll have a crystal-clear understanding of how they work and how to leverage them in your C# programming.
“Covariance and Contravariance are terms used in programming languages to describe how subtypes relate to their base types. Covariance is when a derived type can be used where a base type is expected. On the other hand, Contravariance is when a base type can be used where a derived type is expected.“
Covariance and contravariance deal with how type conversions are allowed between reference types in C#. These concepts come into play when working with arrays, delegates, and interfaces.
