raspasov

29 ms·

1. 361.▲
   by raspasov 6y ago

   A true pure function combined with persistent immutable data structures (Immutable.js, Clojure, Scala, et al) can be memoized and re-executed practically for free (in very short constant time). P.S. In React for example, in almost all cases
2. 362.▲
   by raspasov 6y ago

   1. Messaging queues are stateful constructs. That doesn't make them a bad choice, they are much better than callbacks. But they do have state which is always "your problem". 2. "constantly poking at a database": Sou
3. 363.▲
   by raspasov 6y ago

   Perhaps it's just a different way of doing the same thing, but I never feel the need to reach for a debugger in the presence of the REPL and tools like Timbre. Just wrap what you want to see in (timbre/spy ...) and you're goo
4. 364.▲
   by raspasov 6y ago

   > Why would Java be slower in a read-mostly regime? Your hypothetical is not convincing. Btw, you mention "real" and then move on to "hypothetical" as an example. Because of Clojure's default persistent in-memory
5. 365.▲
   by raspasov 6y ago

   Yes and no. There's real production cases where even default Clojure can result in the same or faster performance than Java. One hypothetical case is a system that does a lot of complex in-memory reads and a few writes to persistent da
6. 366.▲
   by raspasov 6y ago

   I have the opposite experience. Every time I need to use another language outside of Clojure, it feels like most other languages are... confused. A bad case of "designed by committee" experience.
7. 367.▲
   by raspasov 6y ago

   Not very clear what the diff tool is attempting to do. Just looking at the Clojure code, I feel there's better approaches in Clojure to achieve the same or better results. More clarity would be helpful. Also, transducers are a big perf
8. 368.▲
   by raspasov 6y ago

   This is a very high quality discussion on QM and explanations from pontus, keep it up!
9. 369.▲
   by raspasov 6y ago

   Very nice, thank you!
10. 370.▲
    by raspasov 6y ago

    Can you please elaborate? How does this work? Have never heard of such a thing. EDIT: I believe Apple's DeviceCheck API is what the parent refers to. Thank you!
11. 371.▲
    by raspasov 6y ago

    Using a functional language doesn’t make reality and the complexity of state go away (unless you are writing a compiler or a program/system that fully and purely mathematically controls its inputs and outputs).
12. 372.▲
    by raspasov 6y ago

    Have you considered core.match ? I’ve used it to dispatch API calls based on just data shape.
13. 373.▲
    by raspasov 6y ago

    Did you ever consider using Clojure spec or one of the alternatives before it? Runtime data shape/type inference is quite capable.
14. 374.▲
    by raspasov 6y ago

    It might be desirable when the network/algorithm doesn't work as expected and throwing more data at the problem is not possible (say, you've exhausted all available data).
15. 375.▲
    by raspasov 6y ago

    FT has some pretty critical op-ed sections of corporations, almost bitter.
16. 376.▲
    by raspasov 6y ago

    Good satire.
17. 377.▲
    by raspasov 6y ago

    I agree with you. What language are you doing this in?
18. 378.▲
    by raspasov 6y ago

    Wonder how much of the crash is from coffee vs the sugar (the post mentions hazelnut lattes which should be called hazelnut-flavored coffee/sugar drinks).
19. 379.▲
    by raspasov 6y ago

    You are confusing Java with the JVM.
20. 380.▲
    by raspasov 6y ago

    Any specific issues you've encountered?
21. 381.▲
    by raspasov 6y ago

    I can recommend YourKit. It's a paid tool but if you really need it, the small cost is totally worth it. Usually the bulk of your perf. problem comes from a few hot places that are called often and the JVM needs to do reflection on tho
22. 382.▲
    by raspasov 6y ago

    What you're talking about is effectively a type-hint. Clojure supports those like: (defn get-row-by-id [^Number id] ...) (defn get-row-by-user-name [^String s] ...) There's also destructuring which both "extracts" local
23. 383.▲
    by raspasov 6y ago

    This is pretty neat, just tried it between iPhone Safari and MacOS Safari. Worked well.
24. 384.▲
    by raspasov 6y ago

    I would have been really surprised if they actually removed it. The points made in the video are mostly sensible. They acknowledge the many unknowns. It more or less advocates for the Swedish model of dealing with this vs. most other countr
25. 385.▲
    by raspasov 6y ago

    Am I confused or the video is currently on YouTube? https://www.youtube.com/watch?v=uk2YZfnsOPg
26. 386.▲
    TSA passengers highest since 2020-03-24(tsa.gov)

    2 points by raspasov 6y ago|1 comments
27. 387.▲
    by raspasov 6y ago

    I was not referring to them asking for donations. I was referring to their ad-supported business model where they trade some of their customer's attention/data for money.
28. 388.▲
    by raspasov 6y ago

    I don't subscribe to the view that random internet companies should be regulated by nation states more than our discussion here on HN.com should be regulated. If it applies to FB.com, it can apply to any company or individual online.
29. 389.▲
    by raspasov 6y ago

    Exactly my thoughts. Posted in the "opinion" section, I'll give them that. It's disappointing, I generally like The Guardian, especially what they did around publishing the Snowden docs initially.
30. 390.▲
    by raspasov 6y ago

    Screenshot evidence https://ibb.co/VV0TmyY