JSFiddle - React, Tailwind, and code Playground

HTML

<select id="testSelect">
    <option value="option1" label="1">Option 1</option>
    <option value="option3" label="3">Option 3</option>
    <option value="option5" label="5">Option 5</option>
</select>

JavaScript

$(function() {    
    var options = $('option').add($("<option value='option7' label='7'>Option 7</option>")).sort(function(a, b) {
        return a.label < b.label ? -1 : a.label > b.label ? 1 : 0;
    }).appendTo('#testSelect');
});