---
title: "contains(_:)"
framework: swift
role: symbol
role_heading: Instance Method
path: "swift/sequence/contains(_:)"
---

# contains(_:)

Returns a Boolean value indicating whether the sequence contains the given element.

## Declaration

```swift
func contains(_ element: Self.Element) -> Bool
```

## Parameters

- `element`: The element to find in the sequence.

## Return Value

Return Value true if the element was found in the sequence; otherwise, false.

## Discussion

Discussion This example checks to see whether a favorite actor is in an array storing a movie’s cast. let cast = ["Vivien", "Marlon", "Kim", "Karl"] print(cast.contains("Marlon")) // Prints "true" print(cast.contains("James")) // Prints "false" note: O(n), where n is the length of the sequence.

## See Also

### Finding Elements

- [contains(where:)](swift/sequence/contains(where:).md)
- [allSatisfy(_:)](swift/sequence/allsatisfy(_:).md)
- [first(where:)](swift/sequence/first(where:).md)
- [min()](swift/sequence/min().md)
- [min(by:)](swift/sequence/min(by:).md)
- [max()](swift/sequence/max().md)
- [max(by:)](swift/sequence/max(by:).md)