There are many similar questions including answers here on stack overflow, but none of them have worked for me, so here I am asking you guys. I appreciate everyone\'s time.
I've been wondering about this for a while. This simple solution does the job for me:
import foo from 'foo';
import bar from './bar';
import { default as $ } from "jquery";
global.$ = $;
global.jQuery = $; // This one does the trick for bootstrap!
// Boostrap's jQuery dependency only works with require, not with ES6 import!
const btp = require('bootstrap');