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Profunctors Alternatives
Similar projects and alternatives to profunctors
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The modern identity platform for B2B SaaS. The APIs are flexible and easy-to-use, supporting authentication, user identity, and complex enterprise features like SSO and SCIM provisioning.
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Power Real-Time Data Analytics at Scale. Get real-time insights from all types of time series data with InfluxDB. Ingest, query, and analyze billions of data points in real-time with unbounded cardinality.
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readline-statevar
readline-statevar: Haskell readline wrapper library with variables (setX/getY) wrapped in state vars
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profunctors reviews and mentions
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How to use PostgreSQL with Haskell: hasql
We’ll also use contravariant-extras, vector, profunctors, and tuple packages to make a few things tidier (this isn’t required; it’s all copy-paste anyway).
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The Haskell Unfolder Episode 2: quantified constraints
Edward Kmett already added a superclass to Profunctor, but releasing this got stalled
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Alternative to arrows?
One of the main problems with the Arrow hierarchy is that it’s not particularly well-factored. The main Arrow class has five methods, which is both intimidating to newcomers and indicative that there’s some decomplection that can be done. I think the best alternative is to use the profunctors package; it deals much more fluently with things that can take values and then return them (functions, Kleisli arrows, etc). For example, the Arrow class is broken down across Profunctor and Strong. I had a term rewriting engine that used arrows, and I was never really happy with it until I moved it to profunctors.
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Why kind-level foralls don't interact with ScopedTypeVariables
Indeed, that is a somewhat contrived example that is meant to illustrate that ScopedTypeVariables aren't just limited to standalone type signature declarations—they can also be used in arbitrary subexpressions as well. Whether you prefer to use type signature declarations or expression type signatures largely depends on your personal tastes, but both styles are used in the "real world". For instance, here is one example of a use of expression type signatures + ScopedTypeVariables in the profunctors library.¹
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A note from our sponsor - InfluxDB
www.influxdata.com | 19 Apr 2024
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ekmett/profunctors is an open source project licensed under GNU General Public License v3.0 or later which is an OSI approved license.
The primary programming language of profunctors is Haskell.