Using comparison operators in Scala's pattern matching system

Question

Is it possible to match on a comparison using the pattern matching system in Scala? For example:

a match {
    case 10 => println(\"ten\")
    case _ >         


        

Answer 1

You can add a guard, i.e. an if and a boolean expression after the pattern:

a match {
    case 10 => println("ten")
    case x if x > 10 => println("greater than ten")
    case _ => println("less than ten")
}

Edit: Note that this is more than superficially different to putting an if after the =>, because a pattern won't match if the guard is not true.