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Document contravariance and covariance #66

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FezVrasta opened this issue Nov 22, 2019 · 1 comment
Open

Document contravariance and covariance #66

FezVrasta opened this issue Nov 22, 2019 · 1 comment
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@FezVrasta
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Flow supports contravariance (-), TypeScript doesn't.

Also, TypeScript doesn't support covariance (+) on all its types, but just some of them.
@niieani
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niieani commented Nov 22, 2019

I'm open for PRs. Thanks for the issue.

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