---
title: "exchangeObject(at:withObjectAt:)"
framework: foundation
role: symbol
role_heading: Instance Method
path: "foundation/nsmutableorderedset/exchangeobject(at:withobjectat:)"
---

# exchangeObject(at:withObjectAt:)

Exchanges the object at the specified index with the object at the other index.

## Declaration

```swift
func exchangeObject(at idx1: Int, withObjectAt idx2: Int)
```

## Parameters

- `idx1`: The index of the first object. important: Raises an doc://com.apple.foundation/documentation/Foundation/NSExceptionName/rangeException if index is beyond the end of the mutable ordered set.
- `idx2`: The index of the second object. important: Raises an doc://com.apple.foundation/documentation/Foundation/NSExceptionName/rangeException if index is beyond the end of the mutable ordered set.

## See Also

### Adding, Removing, and Reordering Entries

- [add(_:)](foundation/nsmutableorderedset/add(_:).md)
- [add(_:count:)](foundation/nsmutableorderedset/add(_:count:).md)
- [addObjects(from:)](foundation/nsmutableorderedset/addobjects(from:).md)
- [insert(_:at:)](foundation/nsmutableorderedset/insert(_:at:)-7qg51.md)
- [insert(_:at:)](foundation/nsmutableorderedset/insert(_:at:)-3ncnm.md)
- [remove(_:)](foundation/nsmutableorderedset/remove(_:).md)
- [removeObject(at:)](foundation/nsmutableorderedset/removeobject(at:).md)
- [removeObjects(at:)](foundation/nsmutableorderedset/removeobjects(at:).md)
- [removeObjects(in:)](foundation/nsmutableorderedset/removeobjects(in:)-8h2kh.md)
- [removeObjects(in:)](foundation/nsmutableorderedset/removeobjects(in:)-9jkis.md)
- [removeAllObjects()](foundation/nsmutableorderedset/removeallobjects().md)
- [replaceObject(at:with:)](foundation/nsmutableorderedset/replaceobject(at:with:).md)
- [replaceObjects(at:with:)](foundation/nsmutableorderedset/replaceobjects(at:with:).md)
- [replaceObjects(in:with:count:)](foundation/nsmutableorderedset/replaceobjects(in:with:count:).md)
- [setObject(_:at:)](foundation/nsmutableorderedset/setobject(_:at:).md)