mapIndexed<E> method
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.
Implementation
Iterable<E> mapIndexed<E>(E Function(int index, T item) f) sync* {
var index = 0;
for (final item in this) {
yield f(index++, item);
}
}