I'm having a little trouble understanding how I would use covariance and contravariance in the real world.

So far, the only examples I've seen have been the same old array example.

object[] objectArray = new string[] { "string 1", "string 2" };

It would be nice to see an example that would allow me to use it during my development if I could see it being used elsewhere.

c# c#-4.0 covariance
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