Hegel
rescript-compiler
Hegel | rescript-compiler | |
---|---|---|
15 | 95 | |
2,109 | 6,472 | |
- | 0.9% | |
0.0 | 9.5 | |
3 months ago | 3 days ago | |
JavaScript | OCaml | |
MIT License | GNU General Public License v3.0 or later |
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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.
Hegel
- Ask HN: Are “normal” vocabulary getting depleted by tech-brand hijacking?
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Hegel – An advanced static type checker for JavaScript
unfortunately, the project is on pause for the time being [1]
[1]: https://github.com/JSMonk/hegel/issues/355#issuecomment-1075...
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Ezno
Thank you. Just checked out the Bagel post (https://www.brandons.me/blog/the-bagel-language) and it looks really cool. Identifying pure functions (whether that is by syntax annotation or from synthesis) is a really good idea, gives me some ideas for doing function inlining in Ezno. I like the "Misc niceties" section, a few of those may of may not be on Ezno's todo list :)
The automatic / inferred generic restrictions is quite cool. https://hegel.js.org/ got there before me! Basic restriction modification is quite simple e.g. `(x) => Math.sin(x)`, x wants to be a number so can add that restriction. It gets more difficult with higher poly types. `(someObj) => Math.sin(someObj.prop1.prop2)` requires modifying not just `someObj` but a property on a property on it. And `(x, y) => printString(x + y)` requires doing even more complex things. But its definitely possible!
- Hegel: advanced static type checker for JavaScript
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The TypeScript Experience
Can TypeScript be improved in this respect? Or, in broader terms, can a superset of JavaScript support a sound type system without becoming overly complicated?
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Differences between TypeScript and Elm
An alternative to TypeScript can be Flow, a library maintained by Facebook. Flow, similarly to TypeScript, is not a sound type system. "Flow tries to be as sound and complete as possible. But because JavaScript was not designed around a type system, Flow sometimes has to make a tradeoff". Another alternative is Hegel, a type system that "attempts" to be sound. It is unclear to me if the attempt succeeded or not but it is worth checking.
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An introduction to type programming in TypeScript – zhenghao
Check out Hegel[0], it uses Flow syntax, it's compatible w/ .d.ts type definitions and has a smarter type inference model than both TS and Flow IMHO.
[0] https://hegel.js.org/
- Hegel: a type checker for JavaScript with optional type annotations for preventing runtime type errors
rescript-compiler
- Borgo is a statically typed language that compiles to Go
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Tired of Typescript? Check out ReScript!
ReScript is a fully typed language with an easy to understand JS like syntax, blazing fast compiler, that compiles to JavaScript. You can easily drop it into an existing project, and there is even a way to generate TypeScript types if you want to add it to a TypeScript project!
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Learning Elm by porting a medium-sized web front end from React (2019)
If you’re a front-end developer, you should checkout ReScript[1], supposedly a JS-oriented successor of ReasonML and developed by the ReasonML team.
[1] https://rescript-lang.org/
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ReScript: Rust like features for JavaScript
ReScript is "Fast, Simple, Fully Typed JavaScript from the Future". What that means is that ReScript has a lightning fast compiler, an easy to learn JS like syntax, strong static types, with amazing features like pattern matching and variant types. Until 2020 it was called "BuckleScript" and is closely related to ReasonML.
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Ask HN: Interest in a Rust-Inspired Language Compiling to JavaScript?
As another commenter has already suggested, ReasonML has a lot of what you described here.
However, modern JS-oriented toolchain for ReasonML is called ReScript and you can learn more here: https://rescript-lang.org/
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How does one write React apps in a purely functional style without making the entire codebase a mess?
ReScript (before BuckleScript) https://rescript-lang.org/ is a functional language that can also use OOP. Ideal for Javascript and Typescript projects, React and servers. It integrates perfectly with Javascript and Typescript code https://rescript-lang.org/docs/react/latest/introduction
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Show HN: EdgeDB Cloud and 4.0 with FTS and Auth
Thank you!
We invited Gabriel because we think what he's building is pretty cool. It showcases so much about EdgeDB: its type system, data model, query language, composability, introspection, etc.
I'm not a ReScript user myself. What I know is that it's a functional programming language somewhat heavily inspired by OCaml. Their website goes into details [1]
[1] https://rescript-lang.org/
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Strong typing, a hill I'm willing to die on
You might want to look into ReScript (https://rescript-lang.org/). It has strong static typing with type inference, and it is very fast.
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Building React Components Using Unions in TypeScript
This is because a “Tagged Union”, another word for TypeScript’s Discriminated Union, is a way to “tag which one is in use right now… we check the tag to see”. Just like when you’re shopping and check the tag of a piece of clothing to see what the price is, what size it is, or what material it’s made out of. Languages like ReScript compile many of their Unions (called Variants) to JavaScript Objects that have a tag property.
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Converting a JavaScript React app to a ReScript React app.
ReScript is "Fast, Simple, Fully Typed JavaScript from the Future". Let's take a look at how we can add it to an existing React project.
What are some alternatives?
TypeScript - IO wrapper around TypeScript language services, allowing for easy consumption by editor plugins
svelte-wasm
Hindley Milner Definitions - Runtime type checking for JS with Hindley Milner signatures
Elm - Compiler for Elm, a functional language for reliable webapps.
TypL - The Type Linter for JS
TypeScript - TypeScript is a superset of JavaScript that compiles to clean JavaScript output.
io-ts - Runtime type system for IO decoding/encoding
Fable: F# |> BABEL - F# to JavaScript, TypeScript, Python, Rust and Dart Compiler
ramda - :ram: Practical functional Javascript
purescript - A strongly-typed language that compiles to JavaScript
reason - Simple, fast & type safe code that leverages the JavaScript & OCaml ecosystems