feat: Projekt von JavaScript zu TypeScript migriert

pages/_error.tsx

@@ -0,0 +1,24 @@
+// pages/_error.tsx
+import React from "react";
+import { NextPage, NextPageContext } from "next";
+
+interface ErrorProps {
+  statusCode?: number;
+}
+
+const Error: NextPage<ErrorProps> = ({ statusCode }) => {
+  return (
+    <p>
+      {statusCode
+        ? `An error ${statusCode} occurred on server`
+        : "An error occurred on client"}
+    </p>
+  );
+};
+
+Error.getInitialProps = ({ res, err }: NextPageContext): ErrorProps => {
+  const statusCode = res?.statusCode || err?.statusCode || 404;
+  return { statusCode };
+};
+
+export default Error;