All files / src reportWebVitals.ts

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import { MetricType } from 'web-vitals';
 
const reportWebVitals = (onPerfEntry?: (metric: MetricType) => void) => {
  if (onPerfEntry && onPerfEntry instanceof Function) {
    import('web-vitals').then(({ onCLS, onINP, onFCP, onLCP, onTTFB }) => {
      onCLS(onPerfEntry);
      onINP(onPerfEntry);
      onFCP(onPerfEntry);
      onLCP(onPerfEntry);
      onTTFB(onPerfEntry);
    });
  }
};
 
export default reportWebVitals;