currying-demo-2

currying-demo-2.scala

// notice the visual separation between the group of arguments
def testSomething2(something: String)(var1: Double, var2: String) = {
  println(something + ", var1: " + var1 + ", var2: " + var2)
}

// here also the visual separation tells that the first two arguments (the data)
// is something different from the last argument (function to be called with the data)
def runWithVariations2(p1s: List[Int], p2s: List[String])(f: (Double, String) => Unit) = {
  for (p1 <- p1s;
       p2 <- p2s) {
    
    f(p1, p2)
  }
}

// testSomething2("some string") returns a function that takes 2 arguments, no need for a lambda func
runWithVariations2(List(1, 2, 3), List("a", "b", "c"))(testSomething2("some string"))

// and there is even a better way to call this function
// in the code below, you can clearly see that something is done in a scope
runWithVariations2(List(1, 2, 3), List("a", "b", "c")){
  testSomething2("some string")
}