---
title: init()
framework: swift
role: symbol
role_heading: Initializer
path: swift/setalgebra/init()
---

# init()

Creates an empty set.

## Declaration

```swift
init()
```

## Discussion

Discussion This initializer is equivalent to initializing with an empty array literal. For example, you create an empty Set instance with either this initializer or with an empty array literal. var emptySet = Set<Int>() print(emptySet.isEmpty) // Prints "true"

emptySet = [] print(emptySet.isEmpty) // Prints "true"