C # – Understanding ‘in’ and ‘out’ (Generic Modifier)
in (Generic Modifier) For generic type parameters, the in keyword specifies that the type parameter is contravariant. You can use the in keyword in generic interfaces and delegates. Contravariance enables you to use a less derived type than that specified by the generic parameter. An interface that has a contravariant type parameter allows its methods … Continue reading “C # – Understanding ‘in’ and ‘out’ (Generic Modifier)”