JSFiddle - React, Tailwind, and code Playground

HTML

<script src="//netdna.bootstrapcdn.com/bootstrap/3.0.3/js/bootstrap.min.js"></script>
<link rel="stylesheet" href="//netdna.bootstrapcdn.com/bootstrap/3.0.3/css/bootstrap.min.css">
<link rel="stylesheet" href="//cdnjs.cloudflare.com/ajax/libs/bootstrap-datepicker/1.2.0/css/datepicker.css">
<script src="//cdnjs.cloudflare.com/ajax/libs/bootstrap-datepicker/1.2.0/js/bootstrap-datepicker.js"></script>
<input id="datepicker">

JavaScript

$('#datepicker').datepicker({
    daysOfWeekDisabled: [0,6]
});