Vue-CLI project vuex warehouse

0901 self-summary

Vue-CLI project vuex warehouse

A concept

• vuex warehouse vue global data warehouse, like a singleton, by this in any assembly. $ store to share this data warehouse, complete information exchange between the cross-component.

• Vuex data warehouse, will be reset after the browser refresh

II. Use

store.js

import Vue from 'vue'
import Vuex from 'vuex'

Vue.use(Vuex);

export default new Vuex.Store({
    state: {
        // 设置任何组件都能访问的共享数据
        course_page: ''  
    },
    mutations: {
        // 通过外界的新值来修改仓库中共享数据的值
        updateCoursePage(state, new_value) {
            console.log(state);
            console.log(new_value);
            state.course_page = new_value;
        }
    },
    actions: {}
})

Get and modify shared data repository : in any logic assembly

// 获取
let course_page = this.$store.state.course_page

// 直接修改
this.$store.state.course_page = '新值'

// 方法修改
this.$store.commit('updateCoursePage', '新值');

注意点:

• updateCoursePage: must accept two values, or meaningless