<!--
{
  "availability" : [
    "iOS: 16.0.0 -",
    "iPadOS: 16.0.0 -",
    "macCatalyst: 16.0.0 -",
    "macOS: 13.0.0 -",
    "tvOS: 16.0.0 -",
    "visionOS: 1.0.0 -",
    "watchOS: 11.0.0 -"
  ],
  "documentType" : "symbol",
  "framework" : "Swift",
  "identifier" : "/documentation/Swift/Sequence/mapAnnotations(_:)-9q4pb",
  "metadataVersion" : "0.1.0",
  "role" : "Instance Method",
  "symbol" : {
    "kind" : "Instance Method",
    "modules" : [
      "Swift"
    ],
    "preciseIdentifier" : "s:ST18CreateMLComponentsE14mapAnnotationsySayAA16AnnotatedFeatureVyqd__qd_1_GGqd_1_qd_0_KXEKADyqd__qd_0_G7ElementRtzr1_lF"
  },
  "title" : "mapAnnotations(_:)"
}
-->

# mapAnnotations(_:)

Returns an array containing the results of mapping the given closure over the sequence’s annotations.

```
func mapAnnotations<Feature, Input, Output>(_ transform: (Input) throws -> Output) rethrows -> [AnnotatedFeature<Feature, Output>] where Self.Element == AnnotatedFeature<Feature, Input>
```

---

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)