const myPlugin = store => { // 當 store 初始化后調用 store.subscribe((mutation, state) => { // 每次 mutation 之后調用 // mutation 的格式為 { type, payload } });};

const store = new Vuex.Store({ // ... plugins: [myPlugin]});

import _ from 'lodash';function logger() { return function(store) { let prevState = store.state; store.subscribe((mutations, state) => {  console.log('prevState', prevState);  console.log(mutations);  console.log('currentState', state);  prevState = _.cloneDeep(state); }); };}

export default new Vuex.Store({ modules: { ... }, strict: true, plugins: process.NODE_ENV === 'production' ? [] : [logger()]});

function vuexLocal() { return function(store) { const local = JSON.parse(localStorage.getItem('myvuex')) || store.state; store.replaceState(local); store.subscribe((mutations, state) => {  const newLocal = _.cloneDeep(state);  sessionStorage.setItem('myvuex', JSON.stringify(newLocal)); }); };}

export default new Vuex.Store({ modules: { ... }, strict: true, plugins: process.NODE_ENV === 'production' ? [vuexLocal()] : [logger(), vuexLocal()]});