runningFold
fun <E, R> KoneIterator<E>.runningFold(initial: R, operation: (acc: R, E) -> R): KoneIterator<R>(source)
inline fun <E, R> KoneIterable<E>.runningFold(initial: R, operation: (acc: R, E) -> R): KoneList<R>(source)
fun <E, R> KoneSequence<E>.runningFold(initial: R, operation: (acc: R, E) -> R): KoneSequence<R>(source)