Scala underscore - ERROR: missing parameter type for expanded function

Question

I know there have been quite a few questions on this, but I\'ve created a simple example that I thought should work,but still does not and I\'m not sure I understand why

Answer 1

It expands to:

myStrings.foreach(println(x => x.toString))

You want:

myStrings.foreach(x => println(x.toString))

The placeholder syntax for anonymous functions replaces the smallest possible containing expression with a function.