klenses alternatives and similar libraries

Based on the "Functional Programming" category.
Alternatively, view klenses alternatives based on common mentions on social networks and blogs.

RxKotlin

9.8 0.0 klenses VS RxKotlin

RxJava bindings for Kotlin
reactor-core

9.7 9.0 klenses VS reactor-core

Non-Blocking Reactive Foundation for the JVM

Appwrite - The Open Source Firebase alternative introduces iOS support

Appwrite is an open source backend server that helps you build native iOS applications much faster with realtime APIs for authentication, databases, files storage, cloud functions and much more!

Promo appwrite.io

Kategory

9.6 7.4 klenses VS Kategory

Λrrow - Functional companion to Kotlin's Standard Library
funKTionale

8.3 0.0 klenses VS funKTionale

Functional constructs for Kotlin
Result

8.1 4.8 klenses VS Result

The modelling for success/failure of operations in Kotlin and KMM (Kotlin Multiplatform Mobile)
kotlin-result

7.9 5.5 klenses VS kotlin-result

A multiplatform Result monad for modelling success or failure operations.
bansa

7.0 0.0 klenses VS bansa

A state container for Java & Kotlin, inspired by Redux & Elm
Arrow Meta

6.8 5.5 klenses VS Arrow Meta

Functional companion to Kotlin's Compiler
redux-kotlin

6.1 0.0 klenses VS redux-kotlin

Predictable state container for Kotlin apps
Snail-Kotlin

5.2 0.0 klenses VS Snail-Kotlin

An observables framework for Kotlin
kotlin-monads

4.8 0.0 klenses VS kotlin-monads

Monads for Kotlin
Reduks

4.8 0.0 klenses VS Reduks

A "batteries included" port of Reduxjs for Kotlin+Android
Komprehensions

4.7 0.0 klenses VS Komprehensions

Do comprehensions for Kotlin and 3rd party libraries [STABLE]
reactor-kotlin-extensions

4.0 0.0 klenses VS reactor-kotlin-extensions

Kotlin extensions for Reactor.
Esito

4.0 0.0 klenses VS Esito

Esito ambition is to be your return type for suspending functions.
result4k

0.4 - klenses VS result4k

Result monad for type safe error handling in Kotlin
arrow

- klenses VS arrow

Functional companion to Kotlin's Standard Library.

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README

klenses

Lenses for Kotlin.

Lenses are property references with some extra abilities: they can also be used to create a copy of an object with the property set to a different value, and they compose to form pointers into nested objects.

data class Inner(val value: String)
data class Outer(val outerValue: String, val inner: Inner?)

val foo = Outer("foo", null)

val outerValueLens = +Outer::outerValue
val innerLens = Outer::inner orElse Inner("xyzzy")
val innerValueLens = innerLens + Inner::value 

assertEquals("foo", outerValueLens(foo))
assertEquals(Outer("quux", null), outerValueLens(foo, "quux"))
assertEquals(Inner("xyzzy"), innerLens(foo))
assertEquals(Outer("foo", Inner("frobnitz")), innerValueLens(foo, "frobnitz"))
assertEquals(Outer("foo", Inner("XYZZY")), innerValueLens(foo) { toUpperCase() })