ArcGIS API for JavaScript 4.18+基于ES Modules的本地化设置@arcgis/core local

ArcGIS API for Javascript 4.18以后的版本4.18 4.19 4.20 4.21 4.22支持ES Modules模式了，默认的API是访问CDN的，内网本地化修改，竟然摸索了好久，分享出来。最终还是满读官网的参考文档解决的，具体链接：https://developers.arcgis.com/javascript/latest/es-modules/
以https://github.com/Esri/jsapi-resources/tree/master/esm-samples/jsapi-create-react-app，GitHub上React示例代码的本地化为例，步骤如下：

步骤：
1、将npm或者yarn添加@arcgis/core包
2、将./node_modules/@arcgis/core/assets文件夹复制到public下
3、App.js

import esriConfig from "@arcgis/core/config.js";
esriConfig.assetsPath = "./assets";

4、index.css

@import "@arcgis/core/assets/esri/themes/light/main.css";

5、目录结构

App.js 代码

import React, { useRef, useEffect } from "react";
import Bookmarks from '@arcgis/core/widgets/Bookmarks';
import Expand from '@arcgis/core/widgets/Expand';
import MapView from "@arcgis/core/views/MapView";
import WebMap from "@arcgis/core/WebMap";

import "./App.css"; 

import esriConfig from "@arcgis/core/config.js";
esriConfig.assetsPath = "./assets";

index.css

@import "@arcgis/core/assets/esri/themes/light/main.css";

html,
body,
#root {
  padding: 0;
  margin: 0;
  height: 100%;
  width: 100%;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen',
    'Ubuntu', 'Cantarell', 'Fira Sans', 'Droid Sans', 'Helvetica Neue',
    sans-serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

6、以下为官方文档的截图：