所有这些解决方案在Firefox和Chrome上都不适用，所以我使用Miles O'Keefe和meder omuraliev的自定义函数:

function getDocHeight()
{
    var D = document;
    return Math.max(
        D.body.scrollHeight, D.documentElement.scrollHeight,
        D.body.offsetHeight, D.documentElement.offsetHeight,
        D.body.clientHeight, D.documentElement.clientHeight
    );
}

function getWindowSize()
{
  var myWidth = 0, myHeight = 0;
  if( typeof( window.innerWidth ) == 'number' ) {
    //Non-IE
    myWidth = window.innerWidth;
    myHeight = window.innerHeight;
  } else if( document.documentElement && ( document.documentElement.clientWidth || document.documentElement.clientHeight ) ) {
    //IE 6+ in 'standards compliant mode'
    myWidth = document.documentElement.clientWidth;
    myHeight = document.documentElement.clientHeight;
  } else if( document.body && ( document.body.clientWidth || document.body.clientHeight ) ) {
    //IE 4 compatible
    myWidth = document.body.clientWidth;
    myHeight = document.body.clientHeight;
  }
  return [myWidth, myHeight];
}

$(window).scroll(function()
{
    if($(window).scrollTop() + getWindowSize()[1] == getDocHeight())
    {
        alert("bottom!");
    }
});

(2021) 这里的很多答案都涉及到一个元素的引用，但如果你只关心整个页面，只需使用:

function isBottom() {
  const { scrollHeight, scrollTop, clientHeight } = document.documentElement;
  const distanceFromBottom = scrollHeight - scrollTop - clientHeight;
  return distanceFromBottom < 20; // adjust the number 20 yourself
}

而不是监听滚动事件，使用交集观察者是检查最后一个元素是否在视口可见的最便宜的一个(这意味着用户被滚动到底部)。它也支持IE7的polyfill。

var observer = new IntersectionObserver(function(entries){ if(entries[0].isIntersecting === true) console.log("Scrolled to the bottom"); else console.log("Not on the bottom"); }, { root:document.querySelector('#scrollContainer'), threshold:1 // Trigger only when whole element was visible }); observer.observe(document.querySelector('#scrollContainer').lastElementChild); #scrollContainer{ height: 100px; overflow: hidden scroll; } <div id="scrollContainer"> <div>Item 1</div> <div>Item 2</div> <div>Item 3</div> <div>Item 4</div> <div>Item 5</div> <div>Item 6</div> <div>Item 7</div> <div>Item 8</div> <div>Item 9</div> <div>Item 10</div> </div>

您可以尝试以下代码，

$("#dashboard-scroll").scroll(function(){
    var ele = document.getElementById('dashboard-scroll');
    if(ele.scrollHeight - ele.scrollTop === ele.clientHeight){
       console.log('at the bottom of the scroll');
    }
});

许多其他解决方案不适合我，因为在滚动到底部我的div触发警报2次，当向上移动时，它也会触发到几个像素，所以解决方案是:

        $('#your-div').on('resize scroll', function()
        {
            if ($(this).scrollTop() +
                $(this).innerHeight() >=
                $(this)[0].scrollHeight + 10) {

                alert('reached bottom!');
            }
        });

根据Nick Craver的回答，你可以限制滚动事件，这样它就不会频繁地触发，从而提高浏览器性能:

var _throttleTimer = null;
var _throttleDelay = 100;
var $window = $(window);
var $document = $(document);

$document.ready(function () {

    $window
        .off('scroll', ScrollHandler)
        .on('scroll', ScrollHandler);

});

function ScrollHandler(e) {
    //throttle event:
    clearTimeout(_throttleTimer);
    _throttleTimer = setTimeout(function () {
        console.log('scroll');

        //do work
        if ($window.scrollTop() + $window.height() > $document.height() - 100) {
            alert("near bottom!");
        }

    }, _throttleDelay);
}