project done

client/src/reducers/alert.js

@@ -0,0 +1,18 @@
+import { SET_ALERT, REMOVE_ALERT } from '../actions/types';
+
+const initialState = [];
+
+function alertReducer(state = initialState, action) {
+  const { type, payload } = action;
+
+  switch (type) {
+    case SET_ALERT:
+      return [...state, payload];
+    case REMOVE_ALERT:
+      return state.filter((alert) => alert.id !== payload);
+    default:
+      return state;
+  }
+}
+
+export default alertReducer;