[@rxap/forms](../wiki/globals) / AsyncValidator

# Type Alias: AsyncValidator

> **AsyncValidator**: [`AsyncValidatorFn`](../wiki/TypeAlias.AsyncValidatorFn) \| [`AsyncValidatorFn`](../wiki/TypeAlias.AsyncValidatorFn)[] \| `null`

Defined in: [packages/angular/forms/src/lib/types.ts:27](https://gitlab.com/rxap/packages/-/blob/36b0e9732b24717840935712e316593ff6aba795/packages/angular/forms/src/lib/types.ts#L27)