"scrolltop button javascript Anirudha Bhowmik"
Bootstrap 4.1.1 Snippet by anirudhabhowmik

<link href="//maxcdn.bootstrapcdn.com/bootstrap/4.1.1/css/bootstrap.min.css" rel="stylesheet" id="bootstrap-css"> <script src="//maxcdn.bootstrapcdn.com/bootstrap/4.1.1/js/bootstrap.min.js"></script> <script src="//cdnjs.cloudflare.com/ajax/libs/jquery/3.2.1/jquery.min.js"></script> <!------ Include the above in your HEAD tag ----------> <a id="back-to-top" href="#" class="btn btn-primary btn-lg back-to-top" role="button" title="Click to return on the top page" data-toggle="tooltip" data-placement="left"><span class="glyphicon glyphicon-chevron-up"></span></a>
.back-to-top { cursor: pointer; position: fixed; bottom: 20px; right: 20px; display:none; }
$(document).ready(function(){ $(window).scroll(function () { if ($(this).scrollTop() > 50) { $('#back-to-top').fadeIn(); } else { $('#back-to-top').fadeOut(); } }); // scroll body to 0px on click $('#back-to-top').click(function () { $('#back-to-top').tooltip('hide'); $('body,html').animate({ scrollTop: 0 }, 800); return false; }); $('#back-to-top').tooltip('show'); });

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