Function functionalUpdate

packages/form-core/src/utils.ts:21–28

(
  updater: Updater<TInput, TOutput>,
  input: TInput,
)

 * @private
 */
export function functionalUpdate<TInput, TOutput = TInput>(
  updater: Updater<TInput, TOutput>,
  input: TInput,
): TOutput {
  return typeof updater === 'function'
    ? (updater as UpdaterFn<TInput, TOutput>)(input)
    : updater
}

/**
 * Get a value from an object using a path, including dot notation.