---
title: NSHorizontalDirection.Set
framework: appkit
role: symbol
role_heading: Structure
path: appkit/nshorizontaldirection/set
---

# NSHorizontalDirection.Set

An efficient set of horizontal directions.

## Declaration

```swift
@frozen struct Set
```

## Topics

### Initializers

- [init(_:)](appkit/nshorizontaldirection/set/init(_:).md)

### Instance Methods

- [contains(_:)](appkit/nshorizontaldirection/set/contains(_:).md)
- [insert(_:)](appkit/nshorizontaldirection/set/insert(_:).md)
- [remove(_:)](appkit/nshorizontaldirection/set/remove(_:).md)
- [update(with:)](appkit/nshorizontaldirection/set/update(with:).md)

### Type Properties

- [all](appkit/nshorizontaldirection/set/all.md)
- [left](appkit/nshorizontaldirection/set/left.md)
- [right](appkit/nshorizontaldirection/set/right.md)

## Relationships

### Conforms To

- [BitwiseCopyable](swift/bitwisecopyable.md)
- [Copyable](swift/copyable.md)
- [Equatable](swift/equatable.md)
- [ExpressibleByArrayLiteral](swift/expressiblebyarrayliteral.md)
- [Hashable](swift/hashable.md)
- [OptionSet](swift/optionset.md)
- [RawRepresentable](swift/rawrepresentable.md)
- [Sendable](swift/sendable.md)
- [SendableMetatype](swift/sendablemetatype.md)
- [SetAlgebra](swift/setalgebra.md)