How can I determine the direction of a jQuery scroll event

0 votes

I'm looking for something to this effect:

$(window).scroll(function(event){
   if (/* magic code*/ ){
       // upscroll code
   } else {
      // downscroll code
   }
});

Any ideas?

Nov 24, 2020 in JQuery by kartik
• 37,500 points
201 views

1 answer to this question.

0 votes

Hello @kartik,

Check current scrollTop vs previous scrollTop

var lastScrollTop = 0;
$(window).scroll(function(event){
   var st = $(this).scrollTop();
   if (st > lastScrollTop){
       // downscroll code
   } else {
      // upscroll code
   }
   lastScrollTop = st;
});

Hope it helps!!

answered Nov 24, 2020 by Niroj
• 82,720 points

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