标签：clientHeight JS 滚动条 scrollDom 底部 scrollTop scrollHeight
const scrollDom = document.getElementById('滚动元素id')
if (!scrollDom) return
if (scrollDom.clientHeight === scrollDom.scrollHeight) {
// 没有滚动条
}
const scrollDom = document.getElementById('滚动元素id')
if (!scrollDom) return
if (scrollDom.scrollTop + scrollDom.clientHeight === scrollDom.scrollHeight) {
// 滚到底部
}
scrollDom.scrollTop + scrollDom.clientHeight === scrollDom.scrollHeight判断滚到底部可能存在等号两边相差零点几的情况，导致等式永远不成立，可以改用scrollDom.scrollTop + scrollDom.clientHeight + 10 >= scrollDom.scrollHeight，这个10按场景修改
标签：clientHeight,
JS,
滚动条,
scrollDom,
底部,
scrollTop,
scrollHeight
From： https://www.cnblogs.com/jia-zq/p/17860260.html