[API reference](https://evolu.dev/docs/api-reference) › [@evolu/common](https://evolu.dev/docs/api-reference/common) › [Type](https://evolu.dev/docs/api-reference/common/Type) › positive

```ts
const positive: BrandFactory<"Positive", number, PositiveError>;
```

Defined in: [packages/common/src/Type.ts:6338](https://github.com/evoluhq/evolu/blob/037c390af081e9944d616ff298a729515c5c5ab7/packages/common/src/Type.ts#L6338)

Number [Brand](https://evolu.dev/docs/api-reference/common/Brand/interfaces/Brand) requiring a value greater than zero.

### Example

```ts

const Positive = positive(Number);

assertOk(Positive.fromUnknown(1), 1);
```