---
title: "insert(_:)"
framework: foundation
role: symbol
role_heading: Instance Method
path: "foundation/indexset/insert(_:)"
---

# insert(_:)

Insert an integer into the IndexSet.

## Declaration

```swift
@discardableResult mutating func insert(_ integer: IndexSet.Element) -> (inserted: Bool, memberAfterInsert: IndexSet.Element)
```

## See Also

### Inserting Elements

- [insert(integersIn:)](foundation/indexset/insert(integersin:)-28eld.md)
- [update(with:)](foundation/indexset/update(with:).md)