---
title: NSMutableDictionary Implementations
framework: foundation
role: collectionGroup
role_heading: API Collection
path: foundation/nsmutabledictionary/nsmutabledictionary-implementations
---

# NSMutableDictionary Implementations

## Topics

### Initializers

- [init(contentsOfURL:)](foundation/nsmutabledictionary/init(contentsofurl:).md)