Adding and removing favs

redux/reducers/appReducer.tsx

@@ -1,3 +1,4 @@
+import { Card } from '../../models/Card'
 import { CardProps } from '../../props/favprops'
 import {FETCH_DATA, ADD_FAVORITE_DATA} from '../constants'
 
@@ -13,11 +14,17 @@ export default appReducer = (state = initialState, action) => {
         case ADD_FAVORITE_DATA:
             const a : CardProps  = action.payload
             if(a.route.bool ==false){
+                const t : Card[] = state.favoriteCards
+                
+                if(t.every((elem) => elem != a.route.card)){
+
                     //@ts-ignore
                     const tab = state.favoriteCards.concat([a.route.card])
                     console.log(state.favoriteCards)
                     return {...state, favoriteCards : tab};
                 }
+                return {...state}
+            }
             else{
                 const tab = state.favoriteCards.filter((item) => item!= a.route.card)
                 return {...state, favoriteCards : tab };

screens/ListFav.tsx

@@ -27,7 +27,7 @@ import Item from '../components/ListItemComponent';
 export default function ListScreen({navigation}){
 
     //@ts-ignore
-    let nList = useSelector(state => state.appReducer.favoriteCards);
+    var nList : Card[] = useSelector(state => state.appReducer.favoriteCards);
     console.log(nList)
 
     const [searchValue, setSearchValue] = useState('');
@@ -51,7 +51,6 @@ export default function ListScreen({navigation}){
                             card: item,
                             bool: true
                         }} />
-                        <Text>"a"</Text>
                     </TouchableHighlight>
                 }
                 keyExtractor={(item: Card) => item.id.toString()}