The deletion of Scala map keys can be obtained by utilizing – operator. This operator is utilized to delete the set of keys of the map.
def -(elem1: A, elem2: A, elems: A*): Map[A, B]
It returns a new map containing all the elements of the given Map except the set of keys which are deleted using the above operator.
Map(geeks -> 5)
In above example here for key is deleted.
Map(cs -> 2)