meow-mtl vs Monocle

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meow-mtl		Monocle
	Project
1	Mentions	5
162	Stars	1,629
-	Growth	0.1%
0.0	Activity	8.3
over 1 year ago	Latest Commit	8 days ago
Scala	Language	Scala
MIT License	License	MIT 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.

meow-mtl

Posts with mentions or reviews of meow-mtl. We have used some of these posts to build our list of alternatives and similar projects. The last one was on 2022-11-19.

Error handling for Cats Effect IO
2 projects | /r/scala | 19 Nov 2022

Maybe meow-mtl?

Monocle

Posts with mentions or reviews of Monocle. We have used some of these posts to build our list of alternatives and similar projects. The last one was on 2022-04-12.

Ref in cats-effect. When should I use it, and when should I not?
1 project | /r/scala | 9 Jul 2022

Without concurrency, using a Ref doesn't buy you anything over just using a var. If you want the benefits of immutability with an API that resembles mutability, you have to use something like Monocle.
Show HN: Monocle – bidirectional code generation library
10 projects | news.ycombinator.com | 12 Apr 2022

A very popular Scala optics library is also called Monocle. I’ve been a happy user for a few years:
https://github.com/optics-dev/Monocle
Monocle 3 release candidate - a super useful and simple library for optics with poetic api
1 project | /r/scala | 1 Jun 2021

See example https://www.optics.dev/Monocle/
Monocle 3.0.0-M1 is released for Scala 2.13 and Scala 3
1 project | /r/scala | 19 Feb 2021
Monocle 3 Roadmap
3 projects | /r/scala | 21 Jan 2021

We always have work to do, for example to define scalfix rules to automate the migration https://github.com/optics-dev/Monocle/issues/1001

What are some alternatives?

When comparing meow-mtl and Monocle you can also consider the following projects:

gql - A functional GraphQL implementation for Scala. https://valdemargr.github.io/gql/

Quicklens - Modify deeply nested case class fields

Monix - Asynchronous, Reactive Programming for Scala and Scala.js.

Shapeless - Generic programming for Scala

Scala Exercises - The easy way to learn Scala.

Chimney - Scala library for boilerplate-free, type-safe data transformations

skunk - A data access library for Scala + Postgres.

cats - Lightweight, modular, and extensible library for functional programming.

Scalaz - Principled Functional Programming in Scala

Scala Graph - Graph for Scala is intended to provide basic graph functionality seamlessly fitting into the Scala Collection Library. Like the well known members of scala.collection, Graph for Scala is an in-memory graph library aiming at editing and traversing graphs, finding cycles etc. in a user-friendly way.

Scala Blitz - Scala framework for efficient sequential and data-parallel collections -

Each - A macro library that converts native imperative syntax to scalaz's monadic expressions