Update Bug_0xblank (#398)

Co-authored-by: root <root@DESKTOP-5QGDUGP>

packages/nextjs/components/scaffold-stark/Address.tsx

@@ -52,6 +52,11 @@ export const Address = ({
 
   const checkSumAddress = useMemo(() => {
     if (!address) return undefined;
+
+    if (address.toLowerCase() === "0x") {
+      return "0x0";
+    }
+
     return getChecksumAddress(address);
   }, [address]);
 
@@ -60,6 +65,19 @@ export const Address = ({
     checkSumAddress || address || "",
   );
 
+  const isValidHexAddress = (value: string): boolean => {
+    if (value.toLowerCase() === "0x") {
+      value = "0x0";
+    }
+
+    if (value.toLowerCase() === "0x0x0") {
+      return false;
+    }
+
+    const hexAddressRegex = /^0x[0-9a-fA-F]+$/;
+    return hexAddressRegex.test(value);
+  };
+
   const [displayAddress, setDisplayAddress] = useState(
     checkSumAddress?.slice(0, 6) + "..." + checkSumAddress?.slice(-4),
   );
@@ -96,8 +114,8 @@ export const Address = ({
     );
   }
 
-  if (!validateChecksumAddress(checkSumAddress)) {
-    return <span className="text-error">Wrong address</span>;
+  if (!checkSumAddress) {
+    return <span className="text-error">Invalid address format</span>;
   }
 
   return (

packages/nextjs/components/scaffold-stark/Input/AddressInput.tsx

@@ -21,7 +21,24 @@ export const AddressInput = ({
 
   const handleChange = useCallback(
     (newValue: Address) => {
-      //setEnteredEnsName(undefined);
+      const sanitizedValue = newValue.toLowerCase();
+
+      if (sanitizedValue === "0x") {
+        onChange("0x0" as Address);
+        return;
+      }
+
+      const isValid =
+        /^(0x)([a-fA-F0-9]{40})$/.test(sanitizedValue) &&
+        !/0x.*0x/.test(sanitizedValue);
+      if (!isValid) {
+        return;
+      }
+
+      if (sanitizedValue.length !== 42) {
+        return;
+      }
+
       onChange(newValue);
     },
     [onChange],