Initial commit.

src/reportWebVitals.ts

@@ -0,0 +1,13 @@
+const reportWebVitals = (onPerfEntry?: () => 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