Add constant for local storage key value

javascript-practice/src/js/constants/constant.js

@@ -11,9 +11,15 @@ export const MESSAGE = {
   DEFAULT_TITLE_ERROR_POPUP: 'Error',
   USER_EXIST_ERROR: 'User is exists! Please try another email!',
 };
+
 export const BTN_CONTENT = {
   GOT_IT: 'Got it!',
   OK: 'Ok',
 };
+
+export const LOCAL_STORAGE = {
+  ACCESS_TOKEN: 'accessToken',
+};
+
 export const TYPE_POPUP = { success: 'success', error: 'error' };
 export const MARK_ICON = { success: 'check', error: 'error' };

javascript-practice/src/js/services/userService.js

@@ -1,3 +1,4 @@
+import { LOCAL_STORAGE } from '../constants/constant';
 import { createToken } from '../helpers/helpers';
 import CommonService from './commonService';
 import LocalStorageService from './localStorageService';
@@ -81,6 +82,9 @@ export default class UserService extends CommonService {
     this.save(newUserData);
 
     // Add access token to local storage
-    LocalStorageService.add('accessToken', newUserData.accessToken);
+    LocalStorageService.add(
+      LOCAL_STORAGE.ACCESS_TOKEN,
+      newUserData.accessToken,
+    );
   }
 }