Adding property to 'import Vue from 'vue'' import makes 'Vue' no longer constructible  #38218

TS Template added by Matt Bierner (@mjbvz)

TypeScript Version: 3.9.0-dev.20200427

Search Terms

• Vue
• constructor
• javascript

• VSCode Version: 1.44.2
• OS Version: Win10

Does this issue occur when all extensions are disabled?: Yes

Intellisense broken after added property.

Steps to Reproduce:

In a test directory :

yarn init -y
yarn add vue

Create a javascript file index.js :

import Vue from 'vue';
Vue.config.productionTip = true;
const vm = new Vue("");

Intellisense work :

Intellisense broken :

A second test with another module (dayjs)

Intellisense work :

Intellisense broken :

A third test with a function constructor in index.js

It always works, test property exists.