---
title: NSHashTableOptions
framework: foundation
role: symbol
role_heading: Type Alias
path: foundation/nshashtableoptions
---

# NSHashTableOptions

Components in a bit-field to specify the behavior of elements in an NSHashTable object.

## Declaration

```swift
typealias NSHashTableOptions = Int
```

## Topics

### Constants

- [NSHashTableStrongMemory](foundation/nshashtablestrongmemory.md)
- [NSHashTableCopyIn](foundation/nshashtablecopyin.md)
- [NSHashTableObjectPointerPersonality](foundation/nshashtableobjectpointerpersonality.md)
- [NSHashTableWeakMemory](foundation/nshashtableweakmemory.md)