CK Chuang DezChuang

## v-devtools.js
(() => {
  // find root element: nuxt instance, #app, first div child in <body>
  const root = window?.$nuxt?.$el || document.getElementById('app') || [...document.body.children].find(i => i.tagName === 'DIV');
  const app = root?.__vue__;

  if (!app || !window.__VUE_DEVTOOLS_GLOBAL_HOOK__) return 0;

  const Vue = app.constructor;
  const VueSuper = Vue.super || Vue;
  VueSuper.config.devtools = true;

## server.js
const express = require('express')
const wsServer = require('ws').Server

const PORT = 5566

// 建立 express 物件並綁定在 port 5566
const server = express().listen(PORT, () => {
  console.log(`Listening on ${PORT}`)
})

## client.js
// 建立一個 WebSocket 物件，並連上 socket server
const ws = new WebSocket('ws://localhost:5566')

// 連線建立後
ws.onopen = () => {
  console.log('open connection to server')
}

// 連線斷開後
ws.onclose = () => {

## myPage.js
async fetch({ app, store }) {
  app.$registerStore({
    module: MyModule,
    moduleName: `myModule`,
    store
  })
  await store.dispatch('myModule/INIT_DATA')
},
beforeCreate() {
  this.$registerStore({

## nuxt.config.js
plugins: [
  { src: '~/plugins/register-store' },
  ...
],

## register-store.js
function registerStore({ module, moduleName, store }) {
  const moduleIsRegistered =
    store._modules.root._children[moduleName] !== undefined
  const stateExists = store.state[moduleName]
  if (!moduleIsRegistered) {
    store.registerModule(moduleName, module, { preserveState: stateExists })
  }
}

export default ({ app }, inject) => {
	(() => {
	// find root element: nuxt instance, #app, first div child in <body>
	const root = window?.$nuxt?.$el \|\| document.getElementById('app') \|\| [...document.body.children].find(i => i.tagName === 'DIV');
	const app = root?.__vue__;

	if (!app \|\| !window.__VUE_DEVTOOLS_GLOBAL_HOOK__) return 0;

	const Vue = app.constructor;
	const VueSuper = Vue.super \|\| Vue;
	VueSuper.config.devtools = true;
	const express = require('express')
	const wsServer = require('ws').Server

	const PORT = 5566

	// 建立 express 物件並綁定在 port 5566
	const server = express().listen(PORT, () => {
	console.log(`Listening on ${PORT}`)
	})
	// 建立一個 WebSocket 物件，並連上 socket server
	const ws = new WebSocket('ws://localhost:5566')

	// 連線建立後
	ws.onopen = () => {
	console.log('open connection to server')
	}

	// 連線斷開後
	ws.onclose = () => {
	async fetch({ app, store }) {
	app.$registerStore({
	module: MyModule,
	moduleName: `myModule`,
	store
	})
	await store.dispatch('myModule/INIT_DATA')
	},
	beforeCreate() {
	this.$registerStore({
	function registerStore({ module, moduleName, store }) {
	const moduleIsRegistered =
	store._modules.root._children[moduleName] !== undefined
	const stateExists = store.state[moduleName]
	if (!moduleIsRegistered) {
	store.registerModule(moduleName, module, { preserveState: stateExists })
	}
	}

	export default ({ app }, inject) => {