Returns a new lazy Iterable with elements that are created by calling f on each element of this Iterable in iteration order.
Returns a new lazy Iterable with elements that are created by
calling f
on each element of this Iterable
in iteration order.
This method returns a view of the mapped elements. As long as the returned Iterable is not iterated over, the supplied function f will not be invoked. The transformed elements will not be cached. Iterating multiple times over the the returned Iterable will invoke the supplied function f multiple times on the same element.
Methods on the returned iterable are allowed to omit calling f
on any element where the result isn't needed.
For example, elementAt may call f
only once.