select2 is not working in AdminLTE

It suffers me a lot. It takes a lot of time from me to research and solve the problem. The problem was very simple. I have faced the problem and solved it. Main problem was select2 doesn't get ajax.googleapis cdn. So, before the jQuery code I have loaded the cdn and it works fine now. Firstly, the code was

    <script>
        $(document).ready(function() {
            $('.js-example-basic-multiple').select2();
        });
    </script>
The problem is looked like the picture below


Now after adding the cdn before the script tag. it has been solved the problem and the code looks like below

    <script src="https://code.jquery.com/jquery-3.4.1.js" integrity="sha256-WpOohJOqMqqyKL9FccASB9O0KwACQJpFTUBLTYOVvVU=" crossorigin="anonymous"></script>
      <script>
        $(document).ready(function() {
            $('.js-example-basic-multiple').select2();
        });
    </script>

Now it is seen like below

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