JSFiddle - React, Tailwind, and code Playground

HTML

<select multiple id="multiple">
    <option value="1" type="Alice">Option 1</option>
    <option value="2" type="Bob">Option 2</option>    
    </select>

JavaScript

$(document).on("change", "#multiple", function(){
    var ids = $(this).find('option:selected').map(function() {
        return $(this).attr('type');    
    }).get();
    console.log(ids);
});