---
title: "formIndex(after:)"
framework: swift-package-manager
role: symbol
role_heading: Instance Method
path: "swift-package-manager/documentation/packageplugin/filelist/formindex(after:)"
---

# formIndex(after:)

Inherited from Collection.formIndex(after:).

## Declaration

```swift
func formIndex(after i: inout Self.Index)
```