Scrollbar.init() not found

[radoslaw-redzik-ggsitc-com]

Hi, I have such a problem.
I have loaded smooth-scrollbar.js file into my website. I have a div item with class="data-scrollbar". When javascript finds this element, it should run up a constructor. But it does not. I have an error in console: Uncaught TypeError: Cannot read properties of undefined (reading 'init')

It appears on this piece of code:

let Scrollbar
if (typeof Scrollbar !== typeof null) {
  if (document.querySelectorAll(".data-scrollbar").length) {
    Scrollbar = window.Scrollbar
    Scrollbar.init(document.querySelector('.data-scrollbar'), {
      continuousScrolling: false,
    })
  }
}

After Scrollbar = window.Scrollbar the variable Scrollbar is still undefined. AFAIK it should be function e() { return null !== t && t.apply(this, arguments) || this }. And this should invoke this piece of code (init):

var q = function(t) {
            function e() {
                return null !== t && t.apply(this, arguments) || this
            }
            return function(t, e) {
                function i() {
                    this.constructor = t
                }
                n(t, e),
                t.prototype = null === e ? Object.create(e) : (i.prototype = e.prototype,
                new i)
            }(e, t),
            e.init = function(t, e) {
                if (!t || 1 !== t.nodeType)
                    throw new TypeError("expect element to be DOM Element, but got " + t);
                return U(),
                j.has(t) ? j.get(t) : new V(t,e)
            }

On the page there is much more js files. Is this possible there is a conflict between them? How to find, what js files causes conflict?
Can you help me? Why this is not working?
Regards
Radosław

[sadeghbarati]

Can you share your repository or live site?

[radoslaw-redzik-ggsitc-com]

Unfortunatelly this webpage is in restricted mode, not available publicly.

[sadeghbarati]

I don't exactly know what your project's structure is, is it React or Pure JS?

If you are using import (async) and you want to add Scrollbar function to window object

import Scrollbar from 'smooth-scrollbar`

window.Scrollbar = Scrollbar

make sure to use

console.log(window.Scrollbar) // not working

window.addEventListener('load', () => {
  console.log(window.Scrollbar) // works
})