---
title: AsyncThrowingPrefixWhileSequence.AsyncIterator
framework: swift
role: symbol
role_heading: Type Alias
path: swift/asyncthrowingprefixwhilesequence/asynciterator
---

# AsyncThrowingPrefixWhileSequence.AsyncIterator

The type of iterator that produces elements of the sequence.

## Declaration

```swift
typealias AsyncIterator = AsyncThrowingPrefixWhileSequence<Base>.Iterator
```