const reportWebVitals = (onPerfEntry) => { if (onPerfEntry && onPerfEntry instanceof Function) { import("web-vitals").then(({ getCLS, getFID, getFCP, getLCP, getTTFB }) => { getCLS(onPerfEntry); getFID(onPerfEntry); getFCP(onPerfEntry); getLCP(onPerfEntry); getTTFB(onPerfEntry); }); } }; export default reportWebVitals;