---
title: popLast()
framework: swift
role: symbol
role_heading: Instance Method
path: swift/string/poplast()
---

# popLast()

Removes and returns the last element of the collection.

## Declaration

```swift
mutating func popLast() -> Self.Element?
```

## Return Value

Return Value The last element of the collection if the collection is not empty; otherwise, nil.

## Discussion

Discussion Calling this method may invalidate all saved indices of this collection. Do not rely on a previously stored index value after altering a collection with any operation that can change its length. note: O(1)

## See Also

### Removing Substrings

- [remove(at:)](swift/string/remove(at:).md)
- [remove(at:)](swift/string/remove(at:)-5g0wm.md)
- [removeAll(keepingCapacity:)](swift/string/removeall(keepingcapacity:).md)
- [removeAll(where:)](swift/string/removeall(where:).md)
- [removeFirst()](swift/string/removefirst().md)
- [removeFirst(_:)](swift/string/removefirst(_:).md)
- [removeLast()](swift/string/removelast().md)
- [removeLast(_:)](swift/string/removelast(_:).md)
- [removeSubrange(_:)](swift/string/removesubrange(_:).md)
- [removeSubrange(_:)](swift/string/removesubrange(_:)-8maxn.md)
- [removeSubrange(_:)](swift/string/removesubrange(_:)-9twng.md)
- [drop(while:)](swift/string/drop(while:).md)
- [dropFirst(_:)](swift/string/dropfirst(_:).md)
- [dropLast(_:)](swift/string/droplast(_:).md)