const -> let

controller/userController.js

@@ -254,7 +254,7 @@ async function listUser(req, res, next) {
 async function deleteUser(req, res, next) {
     try {
         const body = req.body;
-        const search = {};
+        let search = {};
         if (body.id) {
             search = { id: body.id };
         }