useFieldData

useFieldData subscribes to a field’s data. It will only trigger a rerender when the value changes.

Sample usage

const form = useForm({
    initialValues: { username: "admin" }
});
const username = useFieldData(form("username"));
//^? string
return (
    <div>Username: { username }</div>
)

Type

function useFieldData<T>(field: FormField<T>): T