JSFiddle - React, Tailwind, and code Playground

HTML

<script src="https://gist.github.com/specializt/dd8776791951bc2a44ca/raw/47975afe5436c6cac15961ed31e49b942b303fcf/jquery.ui.datepicker-de.min.js"></script>
<div id='picker'/>

JavaScript

$("#picker").datepicker($.datepicker.regional['de']);