# Negate

`import { Negate } from "destack:ops";`

Interface for unary `-`.

`-a` becomes `a.negate()`.

```ds title="Negate"
export newtype interface Negate {
    Output;
    negate(): this.Output;
}
```

[language/library/src/ops/negate.ds:5:11](https://github.com/destack-sh/destack/blob/main/language/library/src/ops/negate.ds#L5-L11)

## Members

### `Output`

The result type.

### `negate(): this.Output`

Negate this value.