JSFiddle - React, Tailwind, and code Playground
HTML
<script src="https://code.jquery.com/ui/1.11.2/jquery-ui.js"></script>
<form id="frm" method="post">
<input id="cartag" type="text" name="car">
</form>
JavaScript
var lst = ["Volvo", "BMW", "Toyota"];
$( "#cartag" ).autocomplete({
source: lst
});