107 lines
2.3 KiB
JavaScript
107 lines
2.3 KiB
JavaScript
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// 购物车模块
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export default {
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state:{//存放状态
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// 底部导航的高
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footHeight:'',
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token:'token已生成',
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userInfo:{},
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count:0,
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publicColor:'',
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todos: [{
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id: 1,
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text: '我是内容一',
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done: true
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},
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{
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id: 2,
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text: '我是内容二',
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done: false
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}
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],
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obj:{
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a:'吃鸡腿',
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b:'吃自助餐'
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},
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titleList:[],
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imgList:[],
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onLineList:[],
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cartNum:0,
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geList:[]
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},
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// Vuex中store数据改变的唯一方法就是mutations 不适合异步方法
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mutations: {
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setNum(state,num){
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state.cartNum = num;
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},
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setGe(state,payload){
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state.geList = payload.geList;
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},
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footHeightEv(state,str){
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state.footHeight = str;
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},
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add(state) {
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state.count = 7;
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},
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add2(state, payload) {
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state.count = payload.amount;
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},
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// 单个属性处理方法
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setToken(state,str) {
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state.token = str;
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},
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// 对象处理方法
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updateUserInfo(state, payload) {
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// 变更状态
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state.userInfo = payload.userInfo;
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},
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// 新增字段方法
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newProp(state,payload) {
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state.obj = { ...state.obj, c: payload.c };
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},
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updateState(state, payload) {
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state.onLineList = payload.list;
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}
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},
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// 可以执行任意的同步和异步操作
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actions:{
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addCountAction ({commit}) {
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commit('add')
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},
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addCountAction2 (context , payload) {
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context.commit('add2', payload)
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},
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// 异步方法
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addCountAction3 (context , payload) {
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setTimeout(function () {
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context.commit('add2', payload)
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}, 2000)
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},
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actionA ({ commit }) {
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return new Promise((resolve, reject) => {
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setTimeout(() => {
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commit('someMutation')
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resolve()
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}, 1000)
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})
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},
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actionB ({ dispatch, commit }) {
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return dispatch('actionA').then(() => {
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commit('someOtherMutation')
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})
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}
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},
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// Vuex 允许我们在 store 中定义“getter”（可以认为是 store 的计算属性），对 state 的加工，是派生出来的数据。 可以在多组件中共享 getter 函数，这样做还可以提高运行效率。
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getters: {
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doneTodos: state => {
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return state.todos.filter(todo => todo.done)
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},
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doneTodosCount: (state, getters) => {
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//state ：可以访问数据
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//getters：访问其他函数，等同于 store.getters
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return getters.doneTodos.length
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},
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getTodoById: (state) => (id) => {
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return state.todos.find(todo => todo.id === id)
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}
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}
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}
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