For comprehensions - Syntactic sugar for flatMap & map

Given the following definitions...

def getX = Option(List(3))

def getY = Option(List(5))

The below 2 computations are the same:

getX.flatMap(x => getY.map(y => x ++ y))

val z = for {

       x <- getX

       y <- getY

     } yield x ++ y

Value of z:

z: Option[List[Int]] = Some(List(3, 5))