---
title: predicate
framework: combine
role: symbol
role_heading: Instance Property
path: combine/publishers/dropwhile/predicate
---

# predicate

The closure that indicates whether to drop the element.

## Declaration

```swift
let predicate: (Publishers.DropWhile<Upstream>.Output) -> Bool
```

## See Also

### Inspecting publisher properties

- [upstream](combine/publishers/dropwhile/upstream.md)