Top 22 Lense Open-Source Projects

• language-ext

  41 6,150 7.7 C#

  C# functional language extensions - a base class library for functional programming

Project mention: The Monad Invasion - Part 2: Monads in Action! | dev.to | 2024-02-27

You probably noticed that .SetName() returns a Either. You may have come across Unit in libraries like MediatR or Language-Ext. It's a simple construct representing a type with only one possible value. We use it as a placeholder for operations that do not return a value but may return another state. In our example, .SetName() is a Command that does not return a value but may fail. Therefore, the monad Either carries two possible states: Right (without value) or Left (with an Error).

• frunk

  7 1,197 5.9 Rust

  Funktional generic type-level programming in Rust: HList, Coproduct, Generic, LabelledGeneric, Validated, Monoid and friends.

Project mention: Apply generic function to every tuple element | /r/learnrust | 2023-05-22

So rust doesn't support variadics, but I have heard some murmurings around the topic. In the meantime, you can still do a lot with recursive tras. The frunk crate makes working with them a lot easier: In this case

• InfluxDB

  www.influxdata.com sponsored

  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.

  

• Category_Theory_Machine_Learning

  10 1,087 6.6 Python

  List of papers studying machine learning through the lens of category theory

Project mention: Fundamental Components of Deep Learning (category theory) [pdf] | news.ycombinator.com | 2024-03-13

For those that don't know Bruno, he's one of the organizers for https://cats.for.ai/

He also maintains an "Awesome-$X" like Github page for ML and Category Theory: https://github.com/bgavran/Category_Theory_Machine_Learning

I have no association with him and I doubt he knows who I am. But I thought there is enough interest here in both ML and Category Theory that others might be interested in this.

• monocle-ts

  7 1,016 0.0 TypeScript

  Functional optics: a (partial) porting of Scala monocle

Project mention: Deep Cloning Objects in JavaScript, the Modern Way | news.ycombinator.com | 2023-12-21

Instead of the "deep path properties" syntax, you might want to take the opportunity to learn about functional lenses with monocle-ts

https://gcanti.github.io/monocle-ts/

• λ

  1 855 3.4 Java

  Functional patterns for Java

  

• FSharpPlus

  6 821 8.8 F#

  Extensions for F#

  

• Quicklens

  1 810 7.7 Scala

  Modify deeply nested case class fields

  

• WorkOS

  workos.com sponsored

  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.

  

• focal

  2 720 7.6 TypeScript

  Program user interfaces the FRP way.

  

• generic-records

  0 434 3.9 Haskell

  Generically derive traversals, lenses, and prisms.

• DontFearTheProfunctorOptics

  3 409 0.0 Haskell

  Don't Fear the Profunctor Optics!

  

• pathex

  5 317 5.5 Elixir

  Fastest tool to access data in Elixir

Project mention: Ask HN: Why isn't Phoenix/Elixir more mainstream? | news.ycombinator.com | 2023-09-29

Some times I miss being able to do updates in the way you described.

Have you seen Pathex? https://github.com/hissssst/pathex

• python-lenses

  2 294 5.1 Python

  A python lens library for manipulating deeply nested immutable structures

• microlens

  2 284 7.5 Haskell

  A lightweight (but compatible with ‘lens’) lenses library

  

• prolens

  0 74 0.0 Haskell

  👓 Profunctor based lightweight implementation of Lenses

  

• 3d_models

  1 50 6.1

  Kurokesu 3D CAD models

  

• giphy-api

  0 27 0.0 Haskell

  Giphy HTTP API Wrapper for Haskell

• vitrea

  0 23 0.0 Haskell

  Optics via the profunctor representation theorem

• lens-errors

  0 17 0.0 Haskell

  Handling errors which occur deep inside lens-chains

• concave

  4 13 0.0 TypeScript

  🧐 Lens-like state management (for React).

• dynamic

  1 11 0.0 Scala

  A Scala library that allows copying a case class using a dynamic property name (by reugn)

• haskell-time-range

  0 2 0.0 Haskell

• polysemy-optics

  0 0 0.0 Haskell

  Optics for Polysemy.

• SaaSHub

  www.saashub.com sponsored

  SaaSHub - Software Alternatives and Reviews. SaaSHub helps you find the best software and product alternatives

  

Lenses related posts

• Fundamental Components of Deep Learning (category theory) [pdf]
  1 project | news.ycombinator.com | 13 Mar 2024
• Mathematical Introduction to Deep Learning: Methods, Implementations, and Theory
  2 projects | news.ycombinator.com | 2 Jan 2024
• Ask HN: Why isn't Phoenix/Elixir more mainstream?
  4 projects | news.ycombinator.com | 29 Sep 2023
• I may have a crush on the TypeScript compiler, because of stuff like this
  3 projects | /r/typescript | 23 May 2023
• Category Theory ∩ Machine Learning
  1 project | /r/u_Realistic-Orchid-923 | 7 Mar 2023
• Category Theory ∩ Machine Learning
  1 project | /r/patient_hackernews | 7 Mar 2023
• Category Theory ∩ Machine Learning
  1 project | /r/hackernews | 7 Mar 2023
• A note from our sponsor - WorkOS
  workos.com | 19 Apr 2024

  The APIs are flexible and easy-to-use, supporting authentication, user identity, and complex enterprise features like SSO and SCIM provisioning. Learn more →

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