partitionIndexed method Null safety

Tuple2<Iterable<E>, Iterable<E>> partitionIndexed(
  1. IndexedPredicate<E> test
)

Splits this collection into pair (Tuple2) of lazy iterables, where item1 contains elements for which test yields true, while item2 contains elements for which test yields false, comparing to partition, test will has access to the sequential index of each element.

Implementation

Tuple2<Iterable<E>, Iterable<E>> partitionIndexed(IndexedPredicate<E> test) =>
    Tuple2(whereIndexed(test), whereNotIndexed(test));