Function findInitialRoot

packages/fiber/src/core/utils.tsx:22–26

(instance: Instance<T>)

 * Returns the instance's initial (outmost) root.
 */
export function findInitialRoot<T>(instance: Instance<T>): RootStore {
  let root = instance.root
  while (root.getState().previousRoot) root = root.getState().previousRoot!
  return root
}

export type Act = <T = any>(cb: () => Promise<T>) => Promise<T>