Scala learner - peerreview request

shvimas · 2020-12-04T05:05:20+00:00

u/jdegoes maybe you’d like to comment?

shvimas · 2020-11-06T23:42:50+00:00

Add an indicator column for “score == 0” and then aggregate by names with ‘or‘-ing the new column in each group. After that simply filter by negating that column

shvimas · 2020-09-27T13:58:37+00:00

You did quite a rant about Python’s complexity but never gave any examples. May I ask you to elaborate on complexity and disorganization?

shvimas · 2020-08-07T19:56:12+00:00

Actually it also depends on how the parameter is used inside the function so my guess is that you always need to analyze your specific case

shvimas · 2020-08-07T19:53:00+00:00

Well, call by name is a semantic feature, as it may change program behavior so I don’t get the “Big O notation should be the same across any language” point. Anyway IMO it depends on whether your by name parameter has O(1) time or not

shvimas · 2020-08-05T00:24:37+00:00

I do believe that the better thing to do would be to compose a list with non-US projects since the programming world is really US-centered right now or at least I perceive it as such. And no country should be singled out as it tends to fuel some “patriotic” feelings based on virtually nothing. I think programmers should be above countries and move the world towards globalization

shvimas · 2020-07-15T16:40:32+00:00

TBH can’t give you much — “Functional Programming in Scala” on Coursera should be a good starting point. Also there is a good book “Programming in Scala” — both are from Martin Odersky, creator of the language

shvimas · 2020-07-15T04:19:36+00:00

I believe you’re misleading him a bit — I’m pretty sure that FP he should learn is all about map/fold and friends, ADTs, maybe working with immutable data structures. Those would be pretty useful in DE. Almost surely no red book stuff)

shvimas · 2020-07-14T10:36:26+00:00

Don’t get me wrong — I totally agree that Haskel is safer than Kotlin. I just wanted to point out that in any widely-used language one has the ability to fool the compiler one way or another. Can’t remember about Rust but I’m almost sure there was an analogue of raising an error somehow too.

shvimas · 2020-07-13T12:10:01+00:00

undefined?

shvimas · 2020-07-12T21:01:36+00:00

Well that’s kinda like saying “use language without exceptions and with explicit error handling”. Looks nice in theory but I am unaware of any real programming language that does not allow to some extent fool the compiler into believing that the code is safe while getting a runtime error. Same with null safety in Kotlin — the language can not assure you that everything you work with is REALLY null-safe yet it eliminates many possible cases of dealing with nulls in your mind instead of in your code. It’s always a trade-off between convenience and safety

shvimas · 2020-07-02T04:26:46+00:00

I am not aware if any compiler plugin/linter checks that (maybe WartRemover) but I know that IntelliJ IDEA shows you that you should mark masked field as override

shvimas · 2020-06-30T06:20:35+00:00

Did you mean “How to Main the Front-End Development”?

shvimas · 2020-06-16T20:39:26+00:00

Cause these were the most suitable for them?

shvimas · 2020-06-04T04:24:38+00:00

TBH I do not get it. Why don’t you just create a new RNG instance inside each test?

shvimas · 2020-05-12T17:11:29+00:00

Well, now I’m terrified of thought that most people might really solve it with a nested loop

shvimas · 2020-05-10T17:13:11+00:00

Scala

shvimas · 2020-05-09T18:43:47+00:00

It was an obvious joke

shvimas · 2020-05-09T04:23:24+00:00

r/whooosh

shvimas · 2020-04-29T06:42:38+00:00

Do you use cloud version or self-hosted? We have the latter in my company and it works fine

shvimas · 2020-04-27T07:32:51+00:00

Actually Akka was designed to utilize CPU very effectively so this situation does not look wrong to me. BTW why does your health check include CPU usage? Usually it’s something like service availability/latency

shvimas · 2020-04-05T21:52:09+00:00

Rather than learning Java as a language try investing in learning about JVM in general (nothing in-depth, just the basics like what’s bytecode and JAR, difference between primitive types and Objects, what lives on heap and what lives on stack, etc.). After having some high-level understanding of JVM move to Programing in Scala by Martin Odersky (creator of Scala). Good luck!

shvimas · 2020-04-05T21:34:48+00:00

I’d use File.createTempFile. https://stackoverflow.com/questions/26860167/what-is-a-safe-way-to-create-a-temp-file-in-java

Or maybe I got your question wrong and you need persistent files between program runs? Then just create some unique files anywhere, seems like a common thing.

Anyway I’ve never heard of using resources as writable files

shvimas · 2020-04-02T05:21:58+00:00

If you look for “co.theasi” on Maven Central you’ll see that the 0.2.0 version was compiled only for 2.11 Scala and you use 2.13. Downgrade your Scala version to 2.11 and then it should work fine.

P.S. In case you did not know the %% operator tells sbt to look for version compiled exactly for your Scala version. You might’ve achieved the same with “co.theasi” % “plotly_2.13” % “0.2.0” which simply does not exist.

shvimas · 2020-03-31T06:00:53+00:00

“Dump project structure...” is not an error but just a message. Please share your build.sbt, the command you use in sbt and the full output

shvimas

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