<!--
{
  "availability" : [
    "iOS: 15.0.0 -",
    "iPadOS: 15.0.0 -",
    "macCatalyst: 15.0.0 -",
    "macOS: 12.0.0 -",
    "tvOS: 15.0.0 -",
    "visionOS: 1.0.0 -",
    "watchOS: 8.0.0 -"
  ],
  "documentType" : "symbol",
  "framework" : "SwiftUI",
  "identifier" : "/documentation/SwiftUI/FetchedResults/nsPredicate",
  "metadataVersion" : "0.1.0",
  "role" : "Instance Property",
  "symbol" : {
    "kind" : "Instance Property",
    "modules" : [
      "SwiftUI"
    ],
    "preciseIdentifier" : "s:7SwiftUI14FetchedResultsV11nsPredicateSo11NSPredicateCSgvp"
  },
  "title" : "nsPredicate"
}
-->

# nsPredicate

The request’s predicate.

```
@MainActor @preconcurrency var nsPredicate: NSPredicate? { get nonmutating set }
```

## Discussion

Set this value to cause the associated [`FetchRequest`](/documentation/SwiftUI/FetchRequest) to execute a
fetch with a new predicate, producing an updated collection of results.

---

Copyright &copy; 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)