Thursday 10 December 2020

Javascript: is it possible to determine how much user scrolls after reaching the end of a page?

On mobile, it's a common UI pattern to have a scrollable element inside a draggable element. When you reach the end of the scrollable element, you start dragging the outer element. E.g. in this GIF (https://media.giphy.com/media/9MJgBkoZfqA7jRdQop/giphy.gif), after scrolling to the top, if you continuing scrolling, it'll drag the subreddits menu.

I want to implement a similar pattern using JS/CSS. To do this, I need to detect if users continue scrolling after reaching the end. Is this possible? If so, is it possible to determine how much they scroll after reaching the end?



from Javascript: is it possible to determine how much user scrolls after reaching the end of a page?

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