Dima

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Dima has asked 21 questions and find answers to 155 problems.

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Dima questions

"close" a Stream?
Avro serialization: which parts are and aren't thread-safe?
Why do we need traits in scala?
Discard return value to return Unit?
What does Dotty offer to replace type projections?
Why does `.asInstanceOf` sometimes throw, and sometimes not?
Inferring parameter type for a lambda (again!)
Implicit conversions weirdness
Is it possible to call an overridden method from self type?
Why is Array.slice so (shockingly!) slow?

Dima answers

Do default parameter values always trump implicits in Scala?
Why is union() a narrow transformation and intersection() is a wide transformation in spark?
Scala lower type bound 'is a subtype' restriction on method arguments
Is there any way to mock Singleton object in Scala
Transforming Scala case class into JSON
How can I provide a scala companion object's class to Java?
Illegal inheritance, superclass X not a subclass of the superclass Y of the mixin trait Z - Scala
Understanding foldLeft with Map instead of List
Java - Passing generic lists into class via constructor
Self-type does not conform to base class