Function spanIndex

repos/effect/packages/effect/src/Array.ts:1421–1430

(self: Iterable<A>, predicate: (a: A, i: number) => boolean)

    }
    i++
  }
  return i
}

/**
 * Splits an iterable into two arrays: the longest prefix where the predicate
 * holds, and the remaining elements.
 *
 * **When to use**
 *
 * Use when you need both the longest predicate-matching prefix and the
 * remaining elements.
 *