ts-pattern
🎨 The exhaustive Pattern Matching library for TypeScript, with smart type inference. (by gvergnaud)
Elm
Compiler for Elm, a functional language for reliable webapps. (by elm)
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| ts-pattern | Elm | |
|---|---|---|
| 38 | 198 | |
| 10,907 | 7,451 | |
| - | 0.2% | |
| 8.6 | 5.4 | |
| 19 days ago | about 2 months ago | |
| TypeScript | Haskell | |
| MIT License | BSD 3-clause "New" or "Revised" 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.
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.
ts-pattern
Posts with mentions or reviews of ts-pattern.
We have used some of these posts to build our list of alternatives
and similar projects. The last one was on 2024-02-08.
-
You Don't Need React
ts-pattern has been a decent band-aid for the lack of native pattern matching, but obviously has downsides that could be avoided if it was built into the language.
https://github.com/gvergnaud/ts-pattern
- Stop nesting ternaries
-
Building React Components Using Unions in TypeScript
ts-pattern
- Pattern Matching Library for TypeScript
-
TypeScript Is Surprisingly OK for Compilers
With how powerful the type system is you can implement pattern matching via a library pretty convincingly, https://github.com/gvergnaud/ts-pattern is definitely the go-to. That being said pattern matching is hardly a requirement for being ok for implementing compilers.
-
How to achieve type safety here possible without "type hacks"?
https://github.com/gvergnaud/ts-pattern might help
- ts-pattern v5
-
[AskJS] C# in every Node.js job posting?
There's a proposal to add something like that to JavaScript but it's been stuck in limbo since 2017 although there are libraries like ts-pattern which implement it already.
- Simplifying Dynamic Classes in Vue with the class-variance-authority library | cdruc.com
- Rust Appreciation Thread
Elm
Posts with mentions or reviews of Elm.
We have used some of these posts to build our list of alternatives
and similar projects. The last one was on 2024-03-21.
-
Ludic: New framework for Python with seamless Htmx support
Elm [1] is based on a similar idea. Build your app from pure functions that return HTML tags.
[1] https://elm-lang.org/
- Learning Elm by porting a medium-sized web front end from React (2019)
-
Can you make your own JavaScript by implementing ECMAScript standard?
You also wouldn't really be creating your own new programing language. You would be creating something that can run JavaScript by following JavaScript standards and syntax. You might be able to add some non-standard features of your own on top of those standards, or include your own standard library of helpers or utilities, but you can't completely make a new or alternative language and then load it in the browser (or at least not by reimplementing ECMAScript standards... you actually can make your own language that runs within any Javascript enviroment, if you provide an interpreter or compiler that transforms it into valid JS. Some people have done something like this, eg Elm: https://elm-lang.org/).
-
What is the best way to present the user the results of Haskell computations?
You should at least have a look at https://elm-lang.org/ it is a pure functional language like Haskell (although with fewer fancy syntax/type classes) but it has some lovely libraries for visualisation and even with plain elm (+ elm-ui) doing string transformations can be easily done.
- Course using F#: Write your own tiny programming system(s)
-
Building React Components Using Unions in TypeScript
I get it. However, the whole point of using Unions to narrow your types, ensure only a set of possible scenarios can occur, and only access data of a particular union when it’s safe to do so. That’s some of what pattern matching can provide, and 100% of what using switch statements in TypeScript with their Discriminated Unions can provide. Yes, it’s not 100% exhaustive, but TypeScript is not soundly typed, and even Elm which is still has the same issue TypeScript does: You’re running in JavaScript where anything is possible. So it’s good enough to build with and much better than what you had.
- What's the state of the Elm repo? · Issue #2308 · elm/compiler
-
How to render a basic calendar UI in Elm
The beauty of a language like Elm (and other lambda-calculus / functional programming inspired languages) is that there's very little transformation involved in going from an idea to code. And that seems to have a big impact on getting things done.
- Como desenvolvi um backend web em Clojure
-
Is it possible to write games like Pac-Man in a functional language?
I think the most fun and approachable way for beginners to build games with functional programming is with Elm [1].
See a few (small, demo) games built by the community in [2] .
Notice Elm has abandoned the FRP approach in favor of Model-View-Update [3].
[1] https://elm-lang.org/
What are some alternatives?
When comparing ts-pattern and Elm you can also consider the following projects:
pattern-grab - 🤛🏻 Regular Expression Data Grabber
rescript-compiler - The compiler for ReScript.
ts-adt - Generate Algebraic Data Types and pattern matchers
haskelm - Haskell to Elm translation using Template Haskell. Contains both a library and executable.
await-to-js - Async await wrapper for easy error handling without try-catch
purescript - A strongly-typed language that compiles to JavaScript
union-types - A Typescript library for creating discriminating union types.
yew - Rust / Wasm framework for creating reliable and efficient web applications
ts-option
idris - A Dependently Typed Functional Programming Language
typescript-coverage-report - Node command tool to generate TypeScript coverage report
reflex - Interactive programs without callbacks or side-effects. Functional Reactive Programming (FRP) uses composable events and time-varying values to describe interactive systems as pure functions. Just like other pure functional code, functional reactive code is easier to get right on the first try, maintain, and reuse.