Scala's 89th-in-class classic: Using a for expression in Scala for insider thinking

The code jumps inside the for loop are map, withfilter, etc.

For is more direct than MAP,FILTER,FLATMAP, can be implemented with a for replacement

Package Com.dt.scala.forexpression

Object For_advanced {

def main (args:array[string]) {}

def Map[a, b] (list:list[a], f:a = b): list[b] =

for (element <-list) yield f (Element)

def Flatmap[a, B] (list:list[a], f:a = List[b]): list[b] =

for (x <-list; y <-f (x)) yield y

def Filter[a] (list:list[a], f:a = Boolean): list[a] =

for (Elem <-list if f (elem)) yield Elem

}

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Scala's 89th-in-class classic: Using a for expression in Scala for insider thinking