gvolpe · March 2, 2019 02:03
diff --git a/function-composition.scala b/function-composition.scala
 // (.) :: (b -> c) -> (a -> b) -> a -> c
 implicit class FancyComposition[A, B, C](f: B => C) {
  def `.`(g: A => B): A => C = f.compose(g)
 }

 val f: Int => String     = _.toString
 val g: String => Boolean = _.contains("1")
 val h: Int => Boolean    = g `.` f
	// (.) :: (b -> c) -> (a -> b) -> a -> c
	implicit class FancyComposition[A, B, C](f: B => C) {
	def `.`(g: A => B): A => C = f.compose(g)
	}

	val f: Int => String = _.toString
	val g: String => Boolean = _.contains("1")
	val h: Int => Boolean = g `.` f