---
title: "identifier(at:)"
framework: addressbook
role: symbol
role_heading: Instance Method
path: "addressbook/abmultivalue/identifier(at:)"
---

# identifier(at:)

Returns the identifier for the given index.

## Declaration

```swift
func identifier(at index: Int) -> String!
```

## Parameters

- `index`: The index of the identifier to be returned.

## Discussion

Discussion If the index argument is out of bounds, this method raises an exception.

## See Also

### Accessing identifiers

- [index(forIdentifier:)](addressbook/abmultivalue/index(foridentifier:).md)