bubcloud
Version:
A responsive theme for Forumotion
23 lines (15 loc) • 505 B
JavaScript
/* global debounce, gotoTop */
(function($) {
'use strict';
var $window = $(window),
$toTop = $('#back_to_top'),
backToTop = debounce(function() {
var scrollTop = $window.scrollTop(),
winHeight = $window.height();
scrollTop >= winHeight ? $toTop.addClass('show-back-btn') : $toTop.removeClass('show-back-btn');
}, 250);
$window.scroll(backToTop);
$toTop.on('click', function() {
gotoTop();
});
})(jQuery);