Equivalent of this.$f7ready in vanilla JS?

Questions
1

I don’t want to use React.component. Is there an equivalente of $f7ready in plain js?
I tried to get Framework7.instance (i.e. getInstance() ) but the “on” method is working
only for the serviceworker not for the application init.

Any suggestion?

export default () => {
	useEffect(() => {
// not woking
		getInstance().on('init', () => {
			console.log('f7 init');
		});
// not woking
		getInstance().on('ready', () => {
			console.log('f7 ready');
		});
// works!
		getInstance().on('serviceWorkerRegisterSuccess', () => {
			console.log('f7 serviceWorkerRegisterSuccess');
		});
	}, []);

	return (
		<App params={f7params}>
			<Statusbar/>
			<View id="main-view" url="/" main className="safe-areas" pushState={true}/>
		</App>
	);
}