---
title: init()
framework: foundation
role: symbol
role_heading: Initializer
path: foundation/nsmutableset/init()
---

# init()

Initializes a newly allocated set.

## Declaration

```swift
init()
```

## Return Value

Return Value A set.

## Discussion

Discussion This method is a designated initializer of NSMutableSet.

## See Also

### Creating a mutable set

- [init(capacity:)](foundation/nsmutableset/init(capacity:).md)