Covariance vs Contravariance in Programming Languages

Learn about Covariance, Contravariance, Bivariance and Invariance with code examples.
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#Covariance #Contravariance #Bivariance

[@Hector-bj3ls]

This is the best and shortest explanation I've ever seen of these concepts. Most people spend hours on this topic and don't even manage to get the point across.

[@Vlad-hl1gy]

Great explanation 👌 Thank you

[@hitek9419]

I watched about 10 videos and yours is the best. Well done!

[@dipper9534]

This is a very tricky topic, but now I understand it better thanks to you!

[@davidpeng8431]

This is one of the best explaination, plain and straightforward.

[@AliciaMedeiros-h2r]

Sir... That's was a AMAZING explanation

[@danielh1432]

I'm a JavaScript/TypeScript student and don't even know what language you are using, but you really helped me understand some confusing concepts. Thanks a lot! ^_^

[@CodeRadiance]

Great to hear!

[@DokkanMemes]

Looks like C# to me

[@rockbet1035]

Great explanation. Better than the chatGPT one, and light years better than Rebecca's (my comp professor...)!

[@CodeRadiance]

Glad it was helpful!

[@DimaJP]

thanks, it really helped

[@arumugamp3929]

Good explanation, I like it. Thanks.

[@ankukumar7874]

Best explanation, thanks a lot

[@TheBoxyBear]

Great video, but have been better if you quickly went into how to define covariant and contravariant generic types.

[@davideographer4410]

Great explanation!

[@Shonia]

Good!

[@gkmishra2009]

Thanks

[@jofla]

thanks!

[@gkmishra2009]

Great

[@pamperthysoul5886]

🦋🦋🦋