Merge pull request #1 from NimmiW/tut4

tutorial learncodeacademy#4 was followed

1-basic-react/src/js/client.js

@@ -6,25 +6,51 @@ import Layout from "./components/Layout";
 const app = document.getElementById('app');
 ReactDOM.render(<Layout/>, app);*/
 
-import { createStore } from "redux";
-
-const reducer = function(state, action) {
- if(action.type == 'INC'){
-     return state + action.payload;
- }
- if(action.type == 'DEC'){
-     return state - action.payload;
- }
- return state;
+import { combineReducers, createStore } from "redux";
+
+const userReducer = function(state = {}, action) {
+    switch(action.type){
+        case 'CHANGE_NAME':{
+            //state.name = action.payload; //mutate 
+            state = {...state, name: action.payload} //override the name
+            break;
+        }
+        case 'CHANGE_AGE':{
+            //state.age = action.payload;
+            state = {...state, age: action.payload}
+            break;
+        }        
+    }
+    return state;
+}
+
+const tweetsReducer = function(state = [], action){
+    return state;
 }
 
-const store = createStore(reducer, 0);
+const reducers = combineReducers({
+    user: userReducer, 
+    //when user reducer executes, that state will be the 
+    //user object in the store
+    tweets: tweetsReducer
+    //when tweets reducer executes, that state will be the 
+    //tweets array in the store
+})
+
+/*const store = createStore(reducers, {
+    user: {
+        name: 'nimmi',
+        age: '23'
+    },
+    tweets: []
+});*/   // in this exampe we do not set default values
+
+const store = createStore(reducers);
 
 store.subscribe(() => {
     console.log('store changed',store.getState())
 })
 
-store.dispatch({type: 'INC', payload:1}) //run through reducer
-store.dispatch({type: 'DEC', payload:1}) 
-store.dispatch({type: 'DEC', payload:100}) 
-store.dispatch({type: 'INC', payload:1}) 
+store.dispatch({type: 'CHANGE_NAME', payload:'Nimmi'}) //run through reducers
+store.dispatch({type: 'CHANGE_AGE', payload:23}) 
+store.dispatch({type: 'CHANGE_AGE', payload:24})