An error in [isAtBottom]

[wztscau]

var isAtBottom = (startY >= curY && el.scrollHeight - el.scrollTop === height);
In this code, in some case, el.scrollHeight - el.scrollTop !== height, such as 900 - 450 !== 449.
So the height should be var height = Math.round(parseFloat(style.getPropertyValue('height')));

[lazd]

Please provide sample code, indicate browser and OS, etc.

[julianpoy]

@wztscau Although your solution didn't fix this for me, it lead me down the path to figuring this issue out. For any others who stumble down this path, I solved it by changing this check:

var isAtBottom = (startY >= curY && el.scrollHeight - el.scrollTop === height);

to this:

var isAtBottom = (startY >= curY && el.scrollHeight - el.scrollTop <= height);

The problem seems to be related to the fact that scrollHeight - scrollTop does not always equal height when scrolled to the bottom. It's often a pixel off.

[lazd]

Interesting, I'd accept a PR for this. Thanks!