map< T> method
- @override
override
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 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.
Implementation
@override
Iterable<T> map<T>(T f(E e)) {
return CachingIterable<T>(super.map<T>(f).iterator);
}