---
title: "distance(from:to:)"
framework: swift
role: symbol
role_heading: Instance Method
path: "swift/emptycollection/distance(from:to:)"
---

# distance(from:to:)

The distance between two indexes (always zero).

## Declaration

```swift
func distance(from start: EmptyCollection<Element>.Index, to end: EmptyCollection<Element>.Index) -> Int
```