Question

I kind of suck at recursion (which is why im working on this) and I’m having trouble figuring out how to do this: ("Hello" foldLeft(1))((x, y) => x * y.toInt) recursively. Any thoughts?

Answer 1

scala> def r(s : String) : Int = {
 | s match { 
 | case "" => 1
 | case _ => s.head.toInt * r(s.tail)
 | }
 | }
r: (s: String)Int

scala> r("hello")
res4: Int = 714668928