What are some common mistakes developers make with generics in C#?

What are some common mistakes developers make with generics in C#?

Some common mistakes include not using type constraints, misunderstanding covariance and contravariance, and overusing generics.

Can you explain what type constraints are?

Type constraints limit the types that can be used as arguments for a generic type. For example, you can specify that a type must implement a certain interface.

What about covariance and contravariance?

Covariance allows you to use a more derived type than originally specified, while contravariance allows you to use a less derived type.

How can I avoid these mistakes in my code?

To avoid these mistakes, always define clear type constraints, understand the principles of covariance and contravariance, and use generics judiciously.