---
title: "trimmingPrefix(while:)"
framework: swift-package-manager
role: symbol
role_heading: Instance Method
path: "swift-package-manager/documentation/packageplugin/filelist/trimmingprefix(while:)"
---

# trimmingPrefix(while:)

Inherited from Collection.trimmingPrefix(while:).

## Declaration

```swift
func trimmingPrefix(while predicate: (Self.Element) throws -> Bool) rethrows -> Self.SubSequence
```