How to get min by value only in Scala Map

Question

I have a map that has SomeClass -> Double I want to get the SomeClass associated with the smallest value. How do I go about doing this? Ties do not

Answer 1

Use minBy:

Map("a" -> 3.0, "b" -> 1.0, "c" -> 2.0).minBy(_._2)._1

This gives "b" as expected.