Jasper-M questions

Jasper-M answers

• In Scala, how to summon a polymorphic function applicable to an input type, without knowing the output type or full type arguments?
• How does Scala's type erasure work for higher kinded type parameters?
• Detect case class in scala macro
• Add element to a Set from the Left (for readability)
• which is faster spark.sql or df.filter("").select("") . using scala
• Why class <:<[-From, +To] needs to extends (From => To) in scala standard library?
• Scala REPL: error: ';' expected but string literal found
• Scala pattern-match on generics
• How do I check in shapeless if a type is a member of an HList?
• Convert Shapeless HList to a Tuple