---
title: LazyFilterSequence.Iterator
framework: swift
role: symbol
role_heading: Structure
path: swift/lazyfiltersequence/iterator
---

# LazyFilterSequence.Iterator

An iterator over the elements traversed by some base iterator that also satisfy a given predicate.

## Declaration

```swift
@frozen struct Iterator
```

## Overview

Overview note: This is the associated Iterator of LazyFilterSequence and LazyFilterCollection.

## Topics

### Instance Properties

- [base](swift/lazyfiltersequence/iterator/base.md)

### Default Implementations

- [IteratorProtocol Implementations](swift/lazyfiltersequence/iterator/iteratorprotocol-implementations.md)
- [Sequence Implementations](swift/lazyfiltersequence/iterator/sequence-implementations.md)

## Relationships

### Conforms To

- [Copyable](swift/copyable.md)
- [Escapable](swift/escapable.md)
- [IteratorProtocol](swift/iteratorprotocol.md)
- [Sequence](swift/sequence.md)