stew questions

stew answers

• Conditional map of Option[Int] pair through a function using scalaz
• Using Free with a non-functor in Scalaz
• How do you write foldWhile with the standard library?
• Why is flatMap on a Vector[Option[Int]] whose mapper function result is not a Vector[Option[Int]] valid?
• Checking for a value of a Future
• Why is ~3 equal to -4 in Python?
• Scala Extractor unapply called twice
• Scalaz: Convert ValidationNel of ValidationNel to ValidationNel
• How to compare two objects for equality in Scala?
• How can provide JsonFormats for case class that references itself?