# ValidationLogicFn

# Type Alias: ValidationLogicFn()

```ts
type ValidationLogicFn = (props) => void;
```

Defined in: [packages/form-core/src/ValidationLogic.ts:56](https://github.com/TanStack/form/blob/main/packages/form-core/src/ValidationLogic.ts#L56)

## Parameters

### props

[`ValidationLogicProps`](../interfaces/ValidationLogicProps.md)

## Returns

`void`