# +(_:)

Returns the given number unchanged.

Available because

`Self`

conforms to`AdditiveArithmetic`

.

`static func + (x: Self) -> Self`

## Returns

The given argument without any changes.

## Overview

You can use the unary plus operator (`+`

) to provide symmetry in your code for positive numbers when also using the unary minus operator.

```
let x = -21
let y = +21
// x == -21
// y == 21
```