difference between class select2 and function select2 code example

Example 1: select2.org events

$('#mySelect2').on('select2:select', function (e) {
    var data = e.params.data;
    console.log(data);
});

Example 2: select 2 multiselect

//Installation
<link href="https://cdn.jsdelivr.net/npm/[email protected]/dist/css/select2.min.css" rel="stylesheet" />
<script src="https://cdn.jsdelivr.net/npm/[email protected]/dist/js/select2.min.js"></script>



// In your Javascript (external .js resource or <script> tag)
$(document).ready(function() {
    $('.js-example-basic-single').select2();
});