Function notifyViewReady

core/src/utils/transition/index.ts:178–185

(
  viewIsReady: undefined | ((enteringEl: HTMLElement) => Promise<any>),
  enteringEl: HTMLElement
)

};

const notifyViewReady = async (
  viewIsReady: undefined | ((enteringEl: HTMLElement) => Promise<any>),
  enteringEl: HTMLElement
) => {
  if (viewIsReady) {
    await viewIsReady(enteringEl);
  }
};

const playTransition = (trans: Animation, opts: TransitionOptions): Promise<boolean> => {
  const progressCallback = opts.progressCallback;