Add NaN check to number input validator

components/FormGenerator.tsx

@@ -39,6 +39,7 @@ export default function ({
   function isNumberElemInvalid(e: HTMLInputElement): boolean {
     return !(
       e.value ||
+      isNaN(e.valueAsNumber) ||
       e.valueAsNumber <= Number.MAX_SAFE_INTEGER ||
       e.valueAsNumber >= Number.MIN_SAFE_INTEGER
     );