update add mark

src/lib/random.ts

@@ -19,3 +19,8 @@ export const randomId = (number: number) => {
   const _letter = uuid(1);
   return `${_letter}${nanoid(number)}`;
 };
+
+export const randomLetter = (number: number = 8, opts?: { before?: string; after?: string }) => {
+  const { before = '', after = '' } = opts || {};
+  return `${before}${uuid(number)}${after}`;
+};