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Inputs are contravariant, outputs are covariant and input-outputs are invariant

Inputs are contravariant, outputs are covariant and input-outputs are invariant

3 years ago
Anonymous $drS9DEX_Sj

https://thesundayprogrammer.medium.com/inputs-are-contravariant-outputs-are-covariant-and-input-outputs-are-invariant-39b5c46c0ccd