F# VS intellij-rust

F# F*

This year I've been attempting Advent of Code in my favourite programming language, F#. This is a beginner(ish) centered post about making incremental changes from the smallest possible solution to something more robust.

I can recommend polyglot notebooks in vs code, so you can mix different languages.Take a look athttps://fsharp.org/ for some project ideas and frameworks.

I have many less followers on Mastodon than in the Birdsite (40 vs 341), yet my activity has generated many more interactions than there. Not only that, among the users who decided to interact with me I counted: a co-discoverer of the Laniakea supercluster, one of the lead developers behind F#, the author of many important books on Java & JVM, plus many others. I'm literally a nobody, but this time there was no algorithm relying on relevance and engament metrics to decide what to present to each one of us.

FP devs differ based on language here. Elm, like F#, tends to encourage "a bunch of functions and types in a file". While Elm supports modules, we don't really care where it came from; they're all pure, all deterministic, the compiler tells us if it works.

The builtin fsharp collections actually are just "immutable", not persistent as you mention. (Ref: https://github.com/fsharp/fsharp/blob/master/src/fsharp/FSharp.Core/map.fs. This is just an AVL tree that returns a copy on mutations: https://github.com/fsharp/fsharp/blob/577d06b9ec7192a6adafefd09ade0ed10b13897d/src/fsharp/FSharp.Core/map.fs#L118)

You can dive into .NET ecosystem by trying F#. It's functional-first language so this should be familiar.

ReScript code is just like F# or OCAML; it doesn’t have a function parse phase like JavaScript, so we have to define our functions and types first before we can use them. That’s fine, but makes explaining the code backwards (meaning you start at the bottom of the file and work your way up), so we’ll start at our lambda handler and explain each part, regardless of where it’s defined.

F# is a JavaScript and .NET language for web, cloud, data-science, apps and more.

Also a programming joke

We’ll also consider the cases when IntelliJ IDEA licenses were primarily bought for Rust development with the IntelliJ Rust plugin and which options we can suggest to our users in these cases. Please stay tuned!

https://github.com/intellij-rust/intellij-rust/issues/10867#...

Last time I tried this, the plugin was incapable of actually showing compile errors in the project view and they said their false positive error rate was too high to enable it (https://github.com/intellij-rust/intellij-rust/pull/8373). That was a dealbreaker for me compared to VSCode.

Intellgi Rust is a good option.

Thank you all for the assist. Yep, not just a newbie issue which is surprising. :^) https://github.com/intellij-rust/intellij-rust/issues/10483

Warning about Unused_labels and implementation of MIR Now things are getting interesting

Agreed. Specifically, I've found the intellij rust plugin on top of Clion to be great.

figure out testing, you probably want to structure your app in a way that allows you to run it in testing (Zero to Production has a great approach to that). There are helpers for testing like sqlx::test but CLion Rust plugin doesn't support them yet, it breaks code analysis (afaik the fix is not released yet).

Any closer to getting error highlighting on files working properly (https://github.com/intellij-rust/intellij-rust/pull/8373)? That's a major benefit of rust-analyzer to me.

Could you please clarify whether the problem affects exactly local variables' values or function parameters' values? It is a known bug that the CLion's debugger cannot show function parameters' values on Windows: https://github.com/intellij-rust/intellij-rust/issues/6676. This is a major issue and we are working on it. But if you are facing such problems in any other scenarios, please let us know and share a problematic code snippet if possible