---
title: "flatMap(_:)"
framework: swift-package-manager
role: symbol
role_heading: Instance Method
path: "swift-package-manager/documentation/packageplugin/filelist/flatmap(_:)-7ewtw"
---

# flatMap(_:)

Inherited from Sequence.flatMap(_:).

## Declaration

```swift
func flatMap<SegmentOfResult>(_ transform: (Self.Element) throws -> SegmentOfResult) rethrows -> [SegmentOfResult.Element] where SegmentOfResult : Sequence
```