| 1234567891011121314151617181920212223242526272829303132 | 
							- function visibleTodoFilter(state = 'watch', action) {
 
-   switch (action.type) {
 
-   case 'CHANGE_VISIBLE_FILTER':
 
-     return action.filter;
 
-   default:
 
-     return state;
 
-   }
 
- }
 
- function todos(state, action) {
 
-   switch (action.type) {
 
-   case 'ADD_TODO':
 
-     return [...state, {
 
-       text: action.text,
 
-       completed: false
 
-     }];
 
-   case 'COMPLETE_TODO':
 
-     return [
 
-       ...state.slice(0, action.index),
 
-       Object.assign({}, state[action.index], {
 
-         completed: true
 
-       }),
 
-       ...state.slice(action.index + 1)
 
-     ]
 
-   default:
 
-     return state;
 
-   }
 
- }
 
- import { combineReducers, createStore } from 'redux';
 
- let reducer = combineReducers({ visibleTodoFilter, todos });
 
- let store = createStore(reducer);
 
 
  |