Function userReducer

06_dispatch-action.js:6–18

(state = {}, action)

// 我们将会用到上一章的 reducer ，并用它们处理一些 action：

var userReducer = function (state = {}, action) {
    console.log('userReducer was called with state', state, 'and action', action)

    switch (action.type) {
        case 'SET_NAME':
            return {
                ...state,
                name: action.name
            }
        default:
            return state;
    }
}
var itemsReducer = function (state = [], action) {
    console.log('itemsReducer was called with state', state, 'and action', action)