How to properly install third party libraries in webpack?

Question

webpack

Hello! I ran into a problem installing seemingly simple libraries (jquery, bootstrap, fancybox, swiper) in webpack but could not install jquery (I just didn’t get to the rest). I can't figure out what I'm doing wrong! I try to follow the instructions in the documentation, but it doesn't help! The error says that $ is not defined!

In index.js I write as follows: and so I wrote:
import $ from 'jquery';
import 'jquery';