managed VS contravariant

Compare managed vs contravariant and see what are their differences.

managed

A monad for managed values (by Gabriella439)
Control
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contravariant

Haskell 98 contravariant functors (by ekmett)
Control Contravariant
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hackage.haskell.org
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managed contravariant
- 1
50 73
- -
0.0 3.4
over 1 year ago 2 months ago
Haskell Haskell
BSD 3-clause "New" or "Revised" License BSD 3-clause "New" or "Revised" License
The number of mentions indicates the total number of mentions that we've tracked plus the number of user suggested alternatives.
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.

managed

Posts with mentions or reviews of managed. We have used some of these posts to build our list of alternatives and similar projects.

We haven't tracked posts mentioning managed yet.
Tracking mentions began in Dec 2020.

contravariant

Posts with mentions or reviews of contravariant. We have used some of these posts to build our list of alternatives and similar projects. The last one was on 2021-10-21.
  • Co-Applicative programming style
    2 projects | /r/haskell | 21 Oct 2021
    The operator also pops up in George Wilson's 2018 talk, Contravariant Functors: the Other Side of the Coin, along with (>*) and (*<) operators to help things along. Shortly after its publication, Issue #57 for contravariant was raised, suggesting not only (>*<) but the other operators from George's talk.

What are some alternatives?

When comparing managed and contravariant you can also consider the following projects:

distributed-fork - A distributed data processing framework in Haskell.

control-monad-free - Free monads and monad transformers

unliftio - The MonadUnliftIO typeclass for unlifting monads to IO

hdph - Haskell distributed parallel Haskell

parallel - a library for parallel programming

streamproc - Haskell library providing a continuation-based stream processor arrow

freer-simple - A friendly effect system for Haskell

effect-monad - Provides 'graded monads' and 'parameterised monads' to Haskell, enabling fine-grained reasoning about effects.

monad-validate - (NOTE: REPOSITORY MOVED TO NEW OWNER: https://github.com/lexi-lambda/monad-validate) A Haskell monad transformer library for data validation

monadbi - BiDirectional monads that can be transformed into each other (atleast partially).

motor - Type-safe effectful state machines in Haskell

can-i-haz - Generic implementation of the Has pattern for MonadReader/MonadState and CoHas for MonadError

managed vs distributed-fork contravariant vs control-monad-free managed vs unliftio contravariant vs hdph managed vs parallel contravariant vs streamproc managed vs freer-simple contravariant vs effect-monad managed vs monad-validate contravariant vs monadbi managed vs motor contravariant vs can-i-haz
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