github.com/hzck/speedroute@v0.0.0-20201115191102-403b7d0e443f/src/reportWebVitals.js (about)

     1  const reportWebVitals = onPerfEntry => {
     2    if (onPerfEntry && onPerfEntry instanceof Function) {
     3      import('web-vitals').then(({ getCLS, getFID, getFCP, getLCP, getTTFB }) => {
     4        getCLS(onPerfEntry);
     5        getFID(onPerfEntry);
     6        getFCP(onPerfEntry);
     7        getLCP(onPerfEntry);
     8        getTTFB(onPerfEntry);
     9      });
    10    }
    11  };
    12  
    13  export default reportWebVitals;