Sum of Array

[ghoulishhuman]

@darksnake

Here you are.

val array: Array<Any> = ...
val sum = array.flatMap<Any,Int>{
  when(it){
    is Int -> intArrayOf(it)
    is IntArray -> it
    else -> error()
  }
}.sum()

Of course, it works only if there are only arrays and integers in the top level array. If it is possible for top level array to contain arrays of arrays, one needs to add a recursive clause to when.

Your code is not working.