javascript - 小数滚动高度？

Question

https://developer.mozilla.org/en-US/docs/Web/API/element.scrollHeight :

This property will round the value to an integer. If you need a fractional value, use element.getBoundingClientRect().

除了... element.getBoundingClientRect() 不返回 scrollHeight。如何获得小数的 scrollHeight？可能吗？

Answer 1

我想我可能有解决方案:

var rect = element.getBoundingClientRect()
var scrollHeight = element.scrollHeight + (parseInt(rect.height) - rect.height)
var scrollWidth  = element.scrollWidth  + (parseInt(rect.width)  - rect.width)