Canonical path for empty array in Scala?

Question

What is the canonical way to get an empty array in Scala? new Array[String](0) too verbose.

Answer 1

 Array[String]() 

You can leave the [String] part if it can be output (for example, methodThatAlwaysTakesAStringArray( Array() ) ).

Answer 2

 val emptyArray = Array.empty[Type] 

Answer 3

Array() will suffice in most cases. It will be of type Array[Nothing] .

If you use implicit conversions, you may need to write Array [Nothing] due to Error No. 3474 :

 def list[T](list: List[T]) = "foobar" implicit def array2list[T](array: Array[T]) = array.toList 

This will not work:

 list(Array()) => error: polymorphic expression cannot be instantiated to expected type; found : [T]Array[T] required: List[?] list(Array()) ^ 

This will:

 list(Array[Nothing]()) //Nothing ... any other type should work as well. 

But this is just a strange angular case of implications. It is possible that this problem will disappear in the future.