---
title: first
framework: foundation
role: symbol
role_heading: Instance Property
path: foundation/indexset/first
---

# first

The first integer in self, or nil if self is empty.

## Declaration

```swift
var first: IndexSet.Element? { get }
```

## See Also

### Counting Indexes

- [count](foundation/indexset/count.md)
- [endIndex](foundation/indexset/rangeview-swift.struct/endindex.md)
- [isEmpty](foundation/indexset/isempty.md)
- [last](foundation/indexset/last.md)
- [startIndex](foundation/indexset/rangeview-swift.struct/startindex.md)