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japgolly/scalajs-react · source
Snapshot 0 · 2026-11-04T12:47:23Z · Scala · Apache-2.0
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9870a5e6d9eb764e884fa5dc67586961f8260c7e93114534f387b809266d576eGitHub description at capture
Facebook's React on Scala.JS
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scalajs-react ============= [](https://github.com/japgolly/scalajs-react/actions/workflows/ci.yml) [](https://gitter.im/japgolly/scalajs-react?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge) Lifts Facebook's [React](https://facebook.github.io/react/) library into [Scala.js](http://www.scala-js.org/) and endeavours to make it as type-safe and Scala-friendly as possible. Provides (opt-in) support for pure functional programming, with additional modules for [Cats](https://typelevel.org/cats), [Cats Effect](https://typelevel.org/cats-effect), and [Monocle](https://www.optics.dev/Monocle). Comes with utility modules [`extra`](extra/) and [`test`](test/), helpful for React in Scala(.js), rather than React in JS. Includes a router, testing utils, performance utils, more. ##### Contents - [Usage & Getting Started](doc/USAGE.md) - [Modules](doc/MODULES.md) - [VDOM](doc/VDOM.md) - [Hooks](doc/HOOKS.md) - [Hooks via builder](doc/HOOKS_BUILDER.md) - [Refs](doc/REFS.md) - [The `Callback` class](doc/CALLBACK.md) - [React Context](doc/CONTEXT.md) - Delving deeper - [Global Config](doc/CONFIG.md) - [Types](doc/TYPES.md) - [Interoperability](doc/INTEROP.md) - [Creating an Effect-Agnostic Library](doc/FX_AGNOSTICISM.md) - [React SSR (Server-Side Rendering) on the JVM](https://blog.shipreq.com/post/scala_react_and_ssr_part_1) - [Functional programming](doc/FP.md) - Scala-only Utilities - [Router](doc/ROUTER.md) - [Performance Management](doc/PERFORMANCE.md) - [Other](doc/EXTRA.md) - [Testing](doc/TESTING.md) - [Live Examples & Demos](https://japgolly.github.io/scalajs-react/) - [Changelogs](doc/changelog) — [**v4.1.0** (Latest)](doc/changelog/4.1.0.md) ##### External Resources * Tutorials / Blogs * [Scala, React, and SSR](https://blog.shipreq.com/post/scala_react_and_ssr_part_1) * [Scala.js and React: Building an Application for the Web](https://scala-bility.blogspot.com/2015/05/scalajs-and-react-building-application.html) * Templates * [chandu0101 / scalajs-react-template](https://github.com/chandu0101/scalajs-react-template) * [ochrons / scalajs-spa-tutorial](https://github.com/ochrons/scalajs-spa-tutorial) * [TodoMVC example](http://todomvc.com/examples/scalajs-react) * [Scala.js, React and ScalaCSS Boilerplate](https://github.com/shashkovdanil/scalajs-react-boilerplate) * ['Intro to React' tutorial transposed into scala.js](https://github.com/MrCurtis/ScalaJSReactTutorial) * Libraries * [test-state](https://github.com/japgolly/test-state/) - Integration/Functional/Property testing for scalajs-react. * [scalajs-benchmark](https://github.com/japgolly/scalajs-benchmark/) * [chandu0101 / scalajs-react-components](https://github.com/chandu0101/scalajs-react-components) * [payalabs / scalajs-react-bridge](https://github.com/payalabs/scalajs-react-bridge) - Boilerplate free use of JS components * [payalabs / scalajs-react-mdl](https://github.com/payalabs/scalajs-react-mdl) - (Material Design Lite components) * [cquiroz / scalajs-react-virtualized](https://github.com/cquiroz/scalajs-react-virtualized) - Facade for react-virtualized * [cquiroz / scalajs-react-clipboard](https://github.com/cquiroz/scalajs-react-clipboard) - Facade for react-copy-to-clipboard * [kinoplan / scalajs-react-material-ui](https://github.com/kinoplan/scalajs-react-material-ui) - Material-UI components (+ Full Demo) * [diode](https://github.com/suzaku-io/diode) - library for managing application state, influenced by Flux and Elm * Open Source Projects, which are using [scalajs-react](https://github.com/japgolly/scalajs-react) * [Mr. Boilerplate](https://github.com/japgolly/mr.boilerplate) - good example of how to properly manage state in scalajs-react * [scala-weather-app](https://github.com/malaman/scala-weather-app) - Yet another weather application, based on Scala.js, scalajs-react and Playframework * [scalafiddle-editor](https://github.com/scalafiddle/scalafiddle-editor) - Web user interface for ScalaFiddle [https://scalafiddle.io](https://scalafiddle.io) * [scastie](https://github.com/scalacenter/scastie) - An interactive playground for Scala [https://scastie.scala-lang.org](https://scastie.scala-lang.org) ##### Requirements: * React ≥ 19 * Scala ≥ 2.13 * Scala.JS ≥ 1.20 ##### Support: If you like what I do —my OSS libraries, my contributions to other OSS libs, [my programming blog](https://japgolly.blogspot.com)— and you'd like to support me, more content, more lib maintenance, [please become a patron](https://www.patreon.com/japgolly)! I do all my OSS work unpaid so showing your support will make a big difference.