redox

lab07/src/reducer.js

@@ -0,0 +1,17 @@
+const initialState = {
+  input: '',
+  list: []
+};
+
+export default function appReducer(state = initialState, action) {
+  switch (action.type) {
+    case 'input/update':
+      return { ...state, input: action.payload };
+    case 'input/clear':
+      return { ...state, input: '' };
+    case 'list/add':
+      return { ...state, list: [...state.list, action.payload] };
+    default:
+      return state;
+  }
+}