That's right, you write programs by composing kleisli arrows A -> M<B>, for some effect M.
A -> M<B>
M
So Reader (or ReaderEither, ReaderTaskEither, Option, Either, etc...) is just one of the possible effects
Reader
ReaderEither
ReaderTaskEither
Option
Either
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That's right, you write programs by composing kleisli arrows
A -> M<B>
, for some effectM
.So
Reader
(orReaderEither
,ReaderTaskEither
,Option
,Either
, etc...) is just one of the possible effects