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More examples in schema-profunctor documentation #1539

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merged 2 commits into from
May 28, 2021

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pcapriotti
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I have added some more explanations and examples to the README of schema-profunctor. These should hopefully cover most of the situations encountered in wire-api.

fmap join (optional x)
= fmap join (fmap Just x <|> pure Nothing)
= fmap (join . Just) x <|> fmap join (pure Nothing)
= fmap id x <|> pure (join Nothing)
= x <|> pure Nothing
@pcapriotti pcapriotti merged commit 021f2e4 into develop May 28, 2021
@pcapriotti pcapriotti deleted the pcapriotti/schema-documentation branch May 28, 2021 05:59
@fisx fisx mentioned this pull request May 31, 2021
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2 participants