Why doesn't Function2 have an andThen method?

Question

Why does andThen only exist for single argument functions in Scala?

The following code works:

val double = (x: Int) => x * 2
val timesFou         


        

Answer 1

Another way to write theons's answer is to use:

val multiplyAndDouble = double compose multiply.tupled
val result = multiplyAndDouble(2, 6) // res 24