---
title: "init(capacity:)"
framework: Swift
role: symbol
role_heading: Initializer
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/init(capacity:)"
---

# init(capacity:)

Initializes a new unique array with the specified capacity and no elements.

## Declaration

```swift
init(capacity: Int)
```