Mario Galic

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Mario Galic has asked 50 questions and find answers to 292 problems.

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Mario Galic questions

Automatic derivation of codecs for structural types
Covariant type A accepted in contravariant position of function argument A => B
Pattern for mapping with identity and applying a side-effect
Implementing value equality of functions
Initialisation order throws null pointer on lazy val access
Why is import cats.implicits._ no longer necessary for importing type class instances?
Composing PartialFunctions with orElse when there is a wildcard case
ConcurrentHashMap[String, AtomicInteger] or ConcurrentHashMap[String, Int] for thread-safe counters?
Quickly switching Scala versions from CLI
Replace scalaz ListT with semantically equivalent cats functionality

Mario Galic answers

What is `F` in `F[_]: Sync` and where does it come from?
Scala compilation error: Required: Future[S_] Found: String
How to apply common test configuration to all projects?
preserve existing code for arbitrary scalafmt settings
How does Scala resolve generic types automatically?
What's the difference between :, :: and / in SBT?
Testing Play framework controller that streams responses
How to install scala 2.12
Purpose of toIterable
Creating typeTag from String and pass it to a polymorphic Method