---
title: PredicateExpressions.KeyPath.CommonKeyPathKind.collectionIsEmpty
framework: foundation
role: symbol
role_heading: Case
path: foundation/predicateexpressions/keypath/commonkeypathkind/collectionisempty
---

# PredicateExpressions.KeyPath.CommonKeyPathKind.collectionIsEmpty

## Declaration

```swift
case collectionIsEmpty
```