Mario Galic

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Mario Galic has asked 53 questions and find answers to 317 problems.

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Mario Galic questions

Why is T a type projection of this.type in expanded type designator C.this.type#T
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

Mario Galic answers

sbt testOnly runs multiple tests
Do we need to test a failure scenario of a public method which fails with an Exception?
Applying the filter function on an Array of Arrays returns an exception in Scala
What is algebraic about ADT in functional programming?
How to define a lift function in Scala
Sbt run tests from src/main/scala instead of src/test/scala?
Running sbt task twice with different settings
How to write test case for NoHostAvailableException in lagom with Scala?
Why does ScalaTest by default not enforce types when matching?
Refine a string to only certain values scala