---
title: EntityCollection Implementations
framework: realitykit
role: collectionGroup
role_heading: API Collection
path: realitykit/entity/childcollection/entitycollection-implementations
---

# EntityCollection Implementations

## Topics

### Instance Methods

- [append(contentsOf:)](realitykit/entity/childcollection/append(contentsof:).md)
- [remove(_:)](realitykit/entity/childcollection/remove(_:).md)
- [remove(at:)](realitykit/entity/childcollection/remove(at:).md)
- [removeAll()](realitykit/entity/childcollection/removeall().md)
- [replaceAll(_:)](realitykit/entity/childcollection/replaceall(_:).md)