我正在尝试使用此 JavaScript 行滚动 div 容器，但它不起作用。 为什么？

Question

This is my code:

 1. div.addEventListener(scroll, function(){
 2.       window.scrollBy(50, 0);
 3. });

But it does not scroll. What is the reason of this?

Answer 1

You want a scroll on a div to trigger a window scroll. This is how you can do it:

div.addEventListener("scroll", function() {
    window.scrollBy(50, 0);
});

Answer 2

I suspect the issue with your code is that window.scrollBy arguments is horizontal, then vertical.

To scroll the page down by 50 pixels, you need window.scrollBy( 0, 50 ) .