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April 23, 2018 13:37
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My Reader Monad Impl
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| interface Reader<D, A> { | |
| (deps: D): A | |
| } | |
| const fmap = <D, A, B>(f: (v: A) => B, readerA: Reader<D, A>): Reader<D, B> => | |
| deps => f(readerA(deps)) | |
| const bind = <D, A, B>(f: (v: A) => Reader<D, B>, readerA: Reader<D, A>): Reader<D, B> => | |
| deps => f(readerA(deps))(deps) |
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