le</a> with elements that are created by
calling <code>f</code> on each element of this <code>Iterable</code> in iteration order.</p>
<p>This method returns a view of the mapped elements. As long as the
returned <a href="dart-core/Iterable-class.html">Iterable</a> is not iterated over, the supplied function <code>f</code> will
not be invoked. The transformed elements will not be cached. Iterating
multiple times over the returned <a href="dart-core/Iterable-class.html">Iterable</a> will invoke the supplied
f