Top Answers

1. What is the rationale behind having companion objects in Scala?
   89 votes
2. What are some example use cases for symbol literals in Scala?
   26 votes
3. What makes Scala's operator overloading "good", but C++'s "bad"?
   4 votes
4. Why doesn't the example compile, aka how does (co-, contra-, and in-) variance work?
   3 votes
5. why is the lift web framework scalable?
   3 votes