---
title: "collapse(_:)"
framework: uikit
role: symbol
role_heading: Instance Method
path: "uikit/nsdiffabledatasourcesectionsnapshot-swift.struct/collapse(_:)"
---

# collapse(_:)

Collapses the specified items in the section snapshot.

## Declaration

```swift
mutating func collapse(_ items: [ItemIdentifierType])
```

## See Also

### Expanding and collapsing items

- [isExpanded(_:)](uikit/nsdiffabledatasourcesectionsnapshot-swift.struct/isexpanded(_:).md)
- [expand(_:)](uikit/nsdiffabledatasourcesectionsnapshot-swift.struct/expand(_:).md)