我同时使用vuex和vuejs 2。
我是vuex的新手，我想看一个商店变量的变化。
我想在我的vue组件中添加手表功能
这是我目前所拥有的:
import Vue from 'vue';
import {
MY_STATE,
} from './../../mutation-types';
export default {
[MY_STATE](state, token) {
state.my_state = token;
},
};
我想知道my_state是否有任何变化
我怎么看店。My_state在我的vuejs组件?
当前回答
您还可以在vue组件中使用mapState来直接从存储中获取状态。
在你的组件中:
computed: mapState([
'my_state'
])
其中my_state是存储中的变量。
其他回答
====== store ===== import Vue from 'vue' import Vuex from 'vuex' import axios from 'axios' Vue.use(Vuex) export default new Vuex.Store({ state: { showRegisterLoginPage: true, user: null, allitem: null, productShow: null, userCart: null }, mutations: { SET_USERS(state, payload) { state.user = payload }, HIDE_LOGIN(state) { state.showRegisterLoginPage = false }, SHOW_LOGIN(state) { state.showRegisterLoginPage = true }, SET_ALLITEM(state, payload) { state.allitem = payload }, SET_PRODUCTSHOW(state, payload) { state.productShow = payload }, SET_USERCART(state, payload) { state.userCart = payload } }, actions: { getUserLogin({ commit }) { axios({ method: 'get', url: 'http://localhost:3000/users', headers: { token: localStorage.getItem('token') } }) .then(({ data }) => { // console.log(data) commit('SET_USERS', data) }) .catch(err => { console.log(err) }) }, addItem({ dispatch }, payload) { let formData = new FormData() formData.append('name', payload.name) formData.append('file', payload.file) formData.append('category', payload.category) formData.append('price', payload.price) formData.append('stock', payload.stock) formData.append('description', payload.description) axios({ method: 'post', url: 'http://localhost:3000/products', data: formData, headers: { token: localStorage.getItem('token') } }) .then(({ data }) => { // console.log('data hasbeen created ', data) dispatch('getAllItem') }) .catch(err => { console.log(err) }) }, getAllItem({ commit }) { axios({ method: 'get', url: 'http://localhost:3000/products' }) .then(({ data }) => { // console.log(data) commit('SET_ALLITEM', data) }) .catch(err => { console.log(err) }) }, addUserCart({ dispatch }, { payload, productId }) { let newCart = { count: payload } // console.log('ini dari store nya', productId) axios({ method: 'post', url: `http://localhost:3000/transactions/${productId}`, data: newCart, headers: { token: localStorage.getItem('token') } }) .then(({ data }) => { dispatch('getUserCart') // console.log('cart hasbeen added ', data) }) .catch(err => { console.log(err) }) }, getUserCart({ commit }) { axios({ method: 'get', url: 'http://localhost:3000/transactions/user', headers: { token: localStorage.getItem('token') } }) .then(({ data }) => { // console.log(data) commit('SET_USERCART', data) }) .catch(err => { console.log(err) }) }, cartCheckout({ commit, dispatch }, transactionId) { let count = null axios({ method: 'post', url: `http://localhost:3000/transactions/checkout/${transactionId}`, headers: { token: localStorage.getItem('token') }, data: { sesuatu: 'sesuatu' } }) .then(({ data }) => { count = data.count console.log(count, data) dispatch('getUserCart') }) .catch(err => { console.log(err) }) }, deleteTransactions({ dispatch }, transactionId) { axios({ method: 'delete', url: `http://localhost:3000/transactions/${transactionId}`, headers: { token: localStorage.getItem('token') } }) .then(({ data }) => { console.log('success delete') dispatch('getUserCart') }) .catch(err => { console.log(err) }) } }, modules: {} })
您还可以在vue组件中使用mapState来直接从存储中获取状态。
在你的组件中:
computed: mapState([
'my_state'
])
其中my_state是存储中的变量。
Vue手表处于字符串状态
状态:
$store.state.local_store.list_of_data
内部组件
watch: {
'$store.state.local_store.list_of_data':{//<----------your state call in string
handler(){
console.log("value changeing in party sales entry"); //<---do your stuff here
},
deep:true
}
},
其实很简单:
watch: {
'$store.state.drawer': function() {
console.log(this.$store.state.drawer)
}
}
如果存储在一个模块中，使用:
'$store.state.myModule.drawer'
对于嵌套文件，使用:
'$store.state.fileOne.fileTwo.myModule.drawer'
我想提问者想用带有Vuex的手表。
this.$store.watch(
(state)=>{
return this.$store.getters.your_getter
},
(val)=>{
//something changed do something
},
{
deep:true
}
);
