Understanding what 'type' keyword does in Scala

Question

I am new to Scala and I could not really find a lot about the type keyword. I am trying to understand what the following expression may mean:

ty         


        

Answer 1

Just an example to see how to use "type" as alias :

type Action = () => Unit

The definition above defines Action to be an alias of the type of procedures(methodes) that take an empty parameter list and that return Unit.