---
title: min()
framework: swift
role: symbol
role_heading: Instance Method
path: swift/uint128/words-swift.struct/min()
---

# min()

Returns the minimum element in the sequence.

## Declaration

```swift
@warn_unqualified_access func min() -> Self.Element?
```

## Return Value

Return Value The sequence’s minimum element. If the sequence has no elements, returns nil.

## Discussion

Discussion This example finds the smallest value in an array of height measurements. let heights = [67.5, 65.7, 64.3, 61.1, 58.5, 60.3, 64.9] let lowestHeight = heights.min() print(lowestHeight) // Prints "Optional(58.5)" note: O(n), where n is the length of the sequence.