implicit parameter

implicit.scala

  // `s' and `b' are both implicit parameters
  def implFn(i: Int)(implicit s: String, b: Int) = {
    println(s)
    i + b
  }
  
  def main(args: Array[String]) {
    // otherS will match parameter `s' by type, **not by name**
    implicit val otherS = "hello"
    // error, two variables with the same type 
    //implicit val myS = "world"
    implicit val otherB = 101
    println(implFn(1))
  }