---
title: "==(_:_:)"
framework: combine
role: symbol
role_heading: Operator
path: "combine/publishers/dropuntiloutput/==(_:_:)"
---

# ==(_:_:)

Returns a Boolean value that indicates whether two publishers are equivalent.

## Declaration

```swift
static func == (lhs: Publishers.DropUntilOutput<Upstream, Other>, rhs: Publishers.DropUntilOutput<Upstream, Other>) -> Bool
```

## Parameters

- `lhs`: A Publishers.DropUntilOutput instance to compare for equality.
- `rhs`: Another Publishers.DropUntilOutput instance to compare for equality.

## Return Value

Return Value true if the publishers have equal upstream and other properties; otherwise false.