type OnErrorCallback = (errorMessage: string)=> void; const reportUnhandledErrors = (onError: OnErrorCallback) => { window.addEventListener('unhandledrejection', (event) => { onError(`Unhandled promise rejection: ${event.reason}. Promise: ${event.promise}.`); }); window.addEventListener('error', (event) => { onError(`Error: ${event.message}. ${event.error?.stack ?? ''}`); }); }; export default reportUnhandledErrors;