How to skip optional parameters in Scala?

Question

Given the following function with optional parameters:

def foo(a:Int = 1, b:Int = 2, c:Int = 3) ...

I want to keep the default value of a

Answer 1

There's no way to skip the parameters, but you can use named parameters when you call your foo method, for example:

// Call foo with b = 5, c = 7 and the default value for a
foo(b = 5, c = 7)

edit - You asked specifically how to do this by positional assignment: this is not possible in Scala.