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monoid-filter: A monoid for modifying or consuming a value

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Functions with the type (a -> m (Maybe a)) are endomorphisms in the Kleisli category of MaybeT m. This means they form a monoid and can be chained together. The most common use for these is to create a series of (effectful) filters which may modify their input, consume their input, or pass their input along unmodified.

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Versions 0.1.0.0
Change log CHANGELOG.md
Dependencies base (>=4.14.1.0 && <4.15), monoid-extras (>=0.5.1 && <0.6), transformers (>=0.5.6.2 && <0.6) [details]
License BSD-2-Clause
Author hololeap
Maintainer hololeap@users.noreply.github.com
Category Control, Data
Home page https://github.com/hololeap/monoid-filter
Bug tracker https://github.com/hololeap/monoid-filter/issues
Uploaded by hololeap at 2021-03-15T19:20:36Z

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monoid-filter

A monoid for modifying or consuming a value

Functions with the type (a -> m (Maybe a)) are endomorphisms in the Kleisli category of MaybeT m. This means they form a monoid and can be chained together. The most common use for these is to create a series of (effectful) filters which may modify their input, consume their input, or pass their input along unmodified.