pds-2021-g2-nest/nest_frontend/reportWebVitals.js

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