Question

I have following if’s in scala:

myList is some List[String]

if (myList.isEmpty) return x > 5
if x < 0 return false
if (myList.head == "+") return foo()
if (myList.head == "-") return bar()

Is it possible to do it with pattern matching?

Answer 1

To me this one is prettier:

if(x > 0) {
  myList.headOption match {
    case Some("+") => foo()
    case Some("-") => bar()
    case None => x > 5
} else false

But I’m not sure if this doesn’t confront with logical flow (e.g. early exit when list is empty — does it break something or not in your context?), if so, feel free to say so or downvote.