# EmptyInput

Empty input interface that defines the value a required field of a given type starts at when no initial input is provided. Optional and nullable fields are not affected, as they accept `undefined`.

## Definition

- `EmptyInput`
  - `string` <Property {...properties.string} />
  - `number` <Property {...properties.number} />
  - `boolean` <Property {...properties.boolean} />
  - `date` <Property {...properties.date} />

### Explanation

Only required fields whose input is `undefined` fall back to these values. The `string` property defaults to an empty string so that an untouched field matches the DOM and validates with its own message instead of a type mismatch. The other properties default to `undefined`.

## Related

### Primitives

<ApiList items={[{ text: 'useForm', href: '/react/api/useForm/' }]} />

### Types

<ApiList items={[{ text: 'FormConfig', href: '/react/api/FormConfig/' }]} />