JSFiddle - React, Tailwind, and code Playground
HTML
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.1.1/jquery.js"></script>
<select id="dropDown">
</select>
JavaScript
var $el = $("#dropDown");
$el.empty(); // remove old options
$el.append($("<option></option>")
.attr("value", '').text('Please Select'));
$.each(results, function (index, value) {
$el.append($("<option></option>")
.attr("value", value).text(value));
});