---
title: "subscript(_:)"
framework: swift
role: symbol
role_heading: Instance Subscript
path: "swift/dictionary/values-swift.struct/subscript(_:)"
---

# subscript(_:)

Accesses the element at the specified position.

## Declaration

```swift
subscript(position: Dictionary<Key, Value>.Index) -> Dictionary<Key, Value>.Values.Element { get set }
```

## Parameters

- `position`: The position of the element to access. position must be a valid index of the collection that is not equal to the endIndex property.

## Overview

Overview For example, you can replace an element of an array by using its subscript. var streets = ["Adams", "Bryant", "Channing", "Douglas", "Evarts"] streets[1] = "Butler" print(streets[1]) // Prints "Butler" You can subscript a collection with any valid index other than the collection’s end index. The end index refers to the position one past the last element of a collection, so it doesn’t correspond with an element. note: O(1)