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# swapAt(_:_:)

Exchanges the values at the specified indices of the array.

```
mutating func swapAt(_ i: InlineArray<count, Element>.Index, _ j: InlineArray<count, Element>.Index)
```

## Parameters

`i`

The index of the first value to swap.

`j`

The index of the second value to swap.

## Discussion

Both parameters must be valid indices of the array and not equal to
`endIndex`. Passing the same index as both `i` and `j` has no effect.

> Complexity: O(1)

---

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