`./src/main.js` use `import Vue from 'vue'` why is not `import * as Vue from 'vue'`

[biluochun]

MDN-import

vue.js/dist/vue.js

(function (global, factory) {
	typeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory() :
	typeof define === 'function' && define.amd ? define(factory) :
	(global.Vue = factory());
}(this, (function () {});

./src/main.js:

import Vue from 'vue'
import App from './App'
import router from './router'

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I think
vue inside the export is module.exports = Vue;
The correct reference should be import * as Vue from 'vue';

Only export to module.exports = Vue; Vue.default = Vue; or export default Vue;
Reference is import Vue from 'vue';

---

update:

is it a vue issue?

[hstarorg]

I think you should use the vue.esm.js.

[yyx990803]

webpack imports the ES modules build, not the UDM build.