---
title: indices
framework: Swift
role: symbol
role_heading: Instance Property
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/indices
---

# indices

The range of indices that are valid for subscripting the array.

## Declaration

```swift
var indices: Range<Int> { get }
```

## Discussion

Discussion note: O(1)