---
title: NSCollectionChangeType
framework: foundation
role: symbol
role_heading: Enumeration
path: foundation/nscollectionchangetype
---

# NSCollectionChangeType

The type of change represented in computing the difference of an ordered collection.

## Declaration

```swift
enum NSCollectionChangeType
```

## Topics

### Types of Ordered Collection Changes

- [NSCollectionChangeType.insert](foundation/nscollectionchangetype/insert.md)
- [NSCollectionChangeType.remove](foundation/nscollectionchangetype/remove.md)

### Initializers

- [init(rawValue:)](foundation/nscollectionchangetype/init(rawvalue:).md)

## Relationships

### Conforms To

- [BitwiseCopyable](swift/bitwisecopyable.md)
- [Equatable](swift/equatable.md)
- [Hashable](swift/hashable.md)
- [RawRepresentable](swift/rawrepresentable.md)
- [Sendable](swift/sendable.md)
- [SendableMetatype](swift/sendablemetatype.md)

## See Also

### Accessing Changes

- [hasChanges](foundation/nsorderedcollectiondifference/haschanges.md)
- [insertions](foundation/nsorderedcollectiondifference/insertions.md)
- [removals](foundation/nsorderedcollectiondifference/removals.md)
- [NSOrderedCollectionChange](foundation/nsorderedcollectionchange.md)