cats-effect VS hn-search

Those benchmarks are using a snapshot version of cats-effect. I don't know where that one comes from, but previously they were using a snapshot from https://github.com/typelevel/cats-effect/pull/3332 which had some issues (3.5-6581dc4, 70% performance degradation), which have since been resolved (see that PR for more info and comparative benchmarks).

Recently, CE3 has had similar issues reported across multiple repositories, almost an epidemic of reports!

The one advantage Rust has over Scala is that it detects data races at compile time, and that's a big time saver if you use low level thread synchronization. However, if you write pure FP code with ZIO or Cats Effect that's basically a non-issue anyway.

See also cats-effect and fs2. cats-effect gives you your IO Monad (and IOApp to run it with on supported platforms). fs2 is the ecosystem’s streaming library, which is much more pervasive in functional Scala than in Haskell. For example, http4s and Doobie are both based on fs2.

On the contrary, switching to the functional mindset, with something like Typelevel Scala3 and respective cats and cats-effect fs2 frameworks, helps to rethink a lot of designs and development approaches.

I think "better Haskell on JVM" (in contrast to "worse Haskell") is a good identity for Scala to have. (Please note that this is an intentional hyperbole.)

Of course, there are areas where Haskell is stronger than Scala (hint: modularity, crucial for good Software Engineering, is not one of them). And Scala has its own way of doing things, so just imitating Haskell won't work well.

Examples of this "better Haskell" are https://typelevel.org/cats-effect/ and https://zio.dev/ .

All together, Scala may be a better choice for you if you want to do Pure Functional Programming. And is definitely less risky (runs on JVM, Java libraries interop, IntelliJ, easy debugging, etc...).

None of the other languages you mentioned are viable in this sense (if also you want a powerful type system, which rules out Clojure).

I agree that Rust's identity is pretty clear: a modern language for use cases where only C or C++ could have been used before.

I would use Scala. I like FP and Scala comes with some awesome libraries for concurrent/async programming like Cats Effect or ZIO. Good choice for creating modern style micro-services to be run in the cloud (or even macro-services, Scala has a powerful module system, so it's made to handle large codebases).

https://typelevel.org/cats-effect/

https://zio.dev/

The language, the community and customs are great. You don't have to worry about nulls, things are immutable by default, domain modelling with ADTs and patter matching is pure joy.

The tooling available is from good to great and Scala is big enough that there are good libraries for typical if not vast majority of stuff and Java libs as a reliable fallback.

What took my interest is this (for both JVM and future multithreaded Scala native): https://github.com/typelevel/cats-effect/discussions/3070 Having the same threads poll available IO events and execute callbacks should improve performance greatly

The author is the creator of Monix and implemented the first version of cats-effect. He knows what he is doing.

You want Kernmantle, which quite honestly shouldn't be hard to implement around Cats and cats-effect. In particular, although Kernmantle doesn't require the use of the Arrow typeclass, there happen to be Arrow (actually ArrowChoice) instances for both Function1 from the standard library and Kleisli from Cats itself, given a Monad instance for the Kleilsi's F[_] type parameter. In other words, we should be able to port Kernmantle from Haskell to Scala (with the Typelevel ecosystem) and instantly be able to use pretty much anything else from the Typelevel ecosystem, or wrapped with it, in our workflow graphs. Pure functions, monadic functions, applicative functions, GADTs with hand-written interpreters, any of it. I think this would be eminently worth doing.

If it's not [flagged], there's no flagging and hence also no flagging ring. baybal2 has been banned on and off for years now https://hn.algolia.com/?dateRange=all&page=0&prefix=false&qu...

The submitted title was "Gary Killdall, creator of CP/M, wrote Pixar's original 3D renderer".

Submitters: If you want to say what you think is important about an article, that's fine, but do it by adding a comment to the thread. Then your view will be on a level playing field with everyone else's: https://hn.algolia.com/?dateRange=all&page=0&prefix=false&so...

(From https://news.ycombinator.com/newsguidelines.html: "Please use the original title, unless it is misleading or linkbait; don't editorialize.")

Vision therapy for myopia helps some people, but not everyone, likely due to genetic and neuroplasticity differences, https://hn.algolia.com/?dateRange=all&page=0&prefix=false&qu.... Nevertheless, many of the principles are useful for children whose eyes and brains are still developing.

I'm a huge Tesla skeptic, but Tesla and Musk are lightning rods for tabloid-style garbage that doesn't belong on HN, so it doesn't surprise me that we often see negative Tesla content flagged to death. Meanwhile we also see plenty of content that hits the front page and stays there [0].

Do you have examples of professional, interesting Tesla content that got flagged?

[0] More than half of the past year's most popular Tesla articles were negative: https://hn.algolia.com/?dateRange=pastYear&page=0&prefix=tru...

It's April 23rd, 2024, and I am still looking for a good, reliable, honest and simple search engine.

All I want to do is search.

No AI.

No ads.

No shopping.

Please don't "Answer my question." I enjoy doing my own original research, thanks.

I'm entirely willing - wanting even - to pay for it.

Currently Kagi has my $, but I'm saddened and frustrated that they're not even focused on Search, they're focused on AI[1] and t-shirts.

Amazingly, in 2024, there is still a market opportunity for a good search engine.

It can't really just be me, can it?

[1]: https://hn.algolia.com/?query=%22kagi%22+%22ai%22

https://hn.algolia.com/?dateRange=all&page=0&prefix=true&que...

For historical purposes

Most likely because there have been oodles of low-quality stories on these topics. We turned the flags off on this one since it maybe rises above the noise (see https://hn.algolia.com/?dateRange=all&page=0&prefix=false&so... for past explanations on how we approach that).

Hey HN,

I'm sure you've seen the monthly "Ask HN: What Are You Working On?" headlines on [Hacker News](https://hn.algolia.com/?dateRange=all&page=0&prefix=true&que...).

Honestly, it's my favorite topic because it's packed with insights about what other hackers are up to.

I wondered what it would be like if instead of just a headline, there was a whole website where hackers could post daily updates, and where we could follow the hackers we're interested in for their latest updates. And so, this web site was born.

I hope it gets used frequently so we can all benefit from it together. I look forward to hearing your thoughts.

Let me know what you think!

I don't know what one thing you're referring to, but it's a core principle of HN to try to avoid repetition, and especially the repetition+indignation combo, which is the commonest and most tedious thing on the internet.

https://hn.algolia.com/?dateRange=all&page=0&prefix=false&so...

Happy 10,000 day to you

https://news.ycombinator.com/from?site=nand2tetris.org

https://hn.algolia.com/?dateRange=all&page=0&prefix=true&que...

https://hn.algolia.com/?dateRange=all&page=0&prefix=true&que...