flatMapWithIndex<B> method
Same as flatMap
(extend
) but provides also the index
of each mapped
element in the mapping function (toElements
).
Implementation
Iterable<B> flatMapWithIndex<B>(
Iterable<B> Function(T t, int index) toElements,
) sync* {
var index = 0;
for (var value in this) {
yield* toElements(value, index);
index += 1;
}
}