Method hostUpdate

packages/reactive-element/src/reactive-controller.ts:76–76

* Called during the client-side host update, just before the host calls * its own update. * * Code in `update()` can depend on the DOM as it is not called in * server-side rendering.

()

   * server-side rendering.
   */
  hostUpdate?(): void;

  /**
   * Called after a host update, just before the host calls firstUpdated and