---
title: "index(before:)"
framework: swift
role: symbol
role_heading: Instance Method
path: "swift/enumeratedsequence/index(before:)"
---

# index(before:)

Returns the position immediately before the given index.

## Declaration

```swift
func index(before index: EnumeratedSequence<Base>.Index) -> EnumeratedSequence<Base>.Index
```

## Return Value

Return Value The index value immediately before i.