# Entity.ChildCollection.IndexingIterator ``` struct IndexingIterator where Elements : Collection ``` ## Topics ### Splitting and joining entities [`typealias SubSequence`](/documentation/RealityKit/Entity/ChildCollection/IndexingIterator/SubSequence) ## Relationships ### Conforms To [`Escapable`](/documentation/Swift/Escapable) [`Sequence`](/documentation/Swift/Sequence) [`IteratorProtocol`](/documentation/Swift/IteratorProtocol) [`Copyable`](/documentation/Swift/Copyable) --- Copyright © 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)