Source: Check if element is visible after scrolling.
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function Utils() {} Utils.prototype = { constructor: Utils, isElementInView: function (element, fullyInView) { var pageTop = $(window).scrollTop(); var pageBottom = pageTop + $(window).height(); var elementTop = $(element).offset().top; var elementBottom = elementTop + $(element).height(); if (fullyInView === true) { return ((pageTop < elementTop) && (pageBottom > elementBottom)); } else { return ((elementTop <= pageBottom) && (elementBottom >= pageTop)); } } }; var Utils = new Utils(); // Usage: // // var isElementInView = Utils.isElementInView($('#flyout-left-container'), false); // if (isElementInView) { // console.log('in view'); // } else { // console.log('out of view'); // } |