Scala Function - Collect

Scala Collection Collect

Collect apply given partial function on each element of input collection and it discard elements for which partial function is not defined.

object MyBlog {
  def main(args: Array[String]): Unit = {
    collectExample()
  }

  def collectExample(): Unit = {
    val divide: PartialFunction[Int, Int] = {
      case input: Int if(input != 0) => 100/input
    }
    val inputList = List(0, 0, 5, 15, 20)
    val res = inputList.collect(divide) // List(20, 6, 5) 100/5, 100/15, 100/20
    println(res)
  }
}