JSFiddle - React, Tailwind, and code Playground
HTML
<input type='hidden' id='userID' value="defaultText"/>
<script src="https://code.jquery.com/jquery-2.2.3.min.js" integrity="sha256-a23g1Nt4dtEYOj7bR+vTu7+T8VP13humZFBJNIYoEJo=" crossorigin="anonymous"></script>
<p id="output"></p>
JavaScript
var userID = ""
userID = $('#userID').val();
$("#output").html("<a href='http://sample/folder/" + userID + "/Documents/Forms/All.aspx'><li>test</li></a>");