Peter Neyens questions

Peter Neyens answers

• Can I get Scala to infer the Option type here?
• Scala for comprehension with Future, List and Option
• Returning an Ordered[T] from a method in Scala
• scala-spark: How to filter RDD after groupby
• Scala : exclude some Dates
• Cats Seq[Xor[A,B]] => Xor[A, Seq[B]]
• Turn list of key/value pairs into list of values per key in spark
• Use of ordering to sort array of arrays, ascending and descending
• How to compose two different `State Monad`?
• Scala Array Slicing with Tuple