Why does it throw an error $ is not defined?

Question

JavaScript

I connect jquery to my project, as well as a file with my scripts written in jquery

//Link libs

import './libs/svg4everybody/svg4everybody.min.js';
import './libs/jQuery 3.4.1/jquery-3.4.1.js'

//Link scripts

import './js/common.js';

The project is built using webpack4. I

checked the dist folder, the library is added to bundle.js (the file where all my scripts go)

But it gives an error in the console.

ReferenceError: $is not defined

Code from

common.js

$(document).ready(function() {
  alert(1)

  //Connect polyfill for SVG sprite
  svg4everybody();

  $('lang-change__block-change').click(function() {
    alert(1)
  })
})