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StrongerMyself/ direction to scroll

Created November 16, 2016 03:07
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direction to scroll
var $window = $(window),
lastScrollTop = 0;
function onScroll (e) {
var top = $window.scrollTop();
if (lastScrollTop > top) {
console.log('top');
} else if (lastScrollTop < top) {
console.log('down');
}
lastScrollTop = top;
}
$window.on('scroll', onScroll);
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