---
title: "insert(moving:at:)"
framework: Swift
role: symbol
role_heading: Instance Method
platforms: [iOS 27.0+, iPadOS 27.0+, Mac Catalyst 27.0+, macOS 27.0+, tvOS 27.0+, visionOS 27.0+, watchOS 27.0+]
path: "swift/uniquearray/insert(moving:at:)-4f2qc"
---

# insert(moving:at:)

Moves the elements of a fully initialized buffer into this array, starting at the specified position, and leaving the buffer uninitialized.

## Declaration

```swift
mutating func insert(moving items: UnsafeMutableBufferPointer<Element>, at index: Int)
```

## Parameters

- `items`: A fully initialized buffer whose contents to move into the array.

## Discussion

Discussion If the array does not have sufficient capacity to hold all elements, then this reallocates storage to extend its capacity, using a geometric growth rate. note: O(self.count + items.count)