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https://github.com/eeue56/derw
An Elm-inspired language that transpiles to TypeScript
https://github.com/eeue56/derw
Last synced: about 2 months ago
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An Elm-inspired language that transpiles to TypeScript
- Host: GitHub
- URL: https://github.com/eeue56/derw
- Owner: eeue56
- License: bsd-3-clause
- Created: 2021-07-13T17:39:36.000Z (about 3 years ago)
- Default Branch: main
- Last Pushed: 2023-11-25T17:27:16.000Z (10 months ago)
- Last Synced: 2024-07-23T02:29:58.360Z (2 months ago)
- Language: TypeScript
- Size: 1.24 MB
- Stars: 374
- Watchers: 13
- Forks: 9
- Open Issues: 3
-
Metadata Files:
- Readme: README.md
- Funding: .github/FUNDING.yml
- License: LICENSE
Awesome Lists containing this project
- awesome-programming-languages - Derw - An Elm-inspired language that transpiles to TypeScript. Derw is a type-safe language in the ML family designed to replace or augment your TypeScript and JavaScript code - both on the client and the server. If you've never encountered an ML language before, some of the core principles - which Derw follows - is a clean and concise syntax, paired with a powerful type system. (Uncategorized / Uncategorized)
- programming-languages - Derw - Elm-inspired language that transpiles to TypeScript. (Functional)
README
# derw
Welcome to Derw! Derw is a type-safe language in the ML family designed to replace or augment your TypeScript and JavaScript code - both on the client and the server. If you've never encountered an ML language before, some of the core principles - which Derw follows - is a clean and concise syntax, paired with a powerful type system. Here's some real world Derw code:
```elm
generateTypeAlias: TypeAlias -> string
generateTypeAlias syntax =
let
properties: string
properties =
List.map generateProperty syntax.properties
|> (\y -> y.join ",\n ")
typeDef: string
typeDef =
generateType syntax.type
in
if syntax.properties.length == 0 then
`type alias ${typeDef} = {\n}`
else
`type alias ${typeDef} = {\n ${properties}\n}`
```
## Why might you use Derw?
Derw is a language for those searching for a better syntax for writing type-heavy code. It is a general purpose language, for both the server and the client, built on top of the JavaScript platform. It has interop with Javascript and TypeScript built in - so that you can use existing code and libraries with minimal effort. Derw targets multiple languages - TypeScript, JavaScript, Elm, English and Derw itself. Derw's output generation is documented in the [Gitbook](https://docs.derw-lang.com/), so it's easy to create code to interface between Derw and TypeScript.
If you want to write a website, both backend and frontend, Derw is a perfect choice for you.
## Batteries built-in
- A testing framework (all of Derw's compiler tests use this library!)
- Performant web framework with server side rendering and hydration
- Bundling built into the CLI
- Write better code by leveraging a type system that guides your code.
- Integrate with your existing code bases through interop with JavaScript and TypeScript.
## Getting Started
Head over to the [Gitbook](https://docs.derw-lang.com/).
## Staying up to date
Homepage: https://www.derw-lang.com/
Blog: http://derw.substack.com/
Follow Derw on Twitter: https://twitter.com/derwlang
# Name
derw (/ˈdeːruː/, Welsh “oak”) is one of the native trees in Wales, famous for long life, tall stature, and hard, good quality wood. An English speaker might pronounce it as “deh-ru”.