https://barnwell-whaley.com/wp-content/plugins/swift-framework/public/js/lib/jquery.viewports.min.js

1!function(e){e.belowthefold=function(t,o){return e(window).height()+e(window).scrollTop()<=e(t).offset().top-o.threshold},e.abovethetop=function(t,o){return e(window).scrollTop()>=e(t).offset().top+e(t).height()-o.threshold},e.rightofscreen=function(t,o){return e(window).width()+e(window).scrollLeft()<=e(t).offset().left-o.threshold},e.leftofscreen=function(t,o){return e(window).scrollLeft()>=e(t).offset().left+e(t).width()-o.threshold},e.inviewport=function(t,o){return!(e.rightofscreen(t,o)||e.leftofscreen(t,o)||e.belowthefold(t,o)||e.abovethetop(t,o))},e.extend(e.expr[":"],{"below-the-fold":function(t,o,n){return e.belowthefold(t,{threshold:parseInt(n[3])||0})},"above-the-top":function(t,o,n){return e.abovethetop(t,{threshold:parseInt(n[3])||0})},"left-of-screen":function(t,o,n){return e.leftofscreen(t,{threshold:parseInt(n[3])||0})},"right-of-screen":function(t,o,n){return e.rightofscreen(t,{threshold:parseInt(n[3])||0})},"in-viewport":function(t,o,n){return e.inviewport(t,{threshold:parseInt(n[3])||0})}})}(jQuery);