$(window).on("scroll", function() {
    //get height of the (browser) window aka viewport
    var scrollHeight = $(document).height();
    // get height of the document 
    var scrollPosition = $(window).height() + $(window).scrollTop();
    if ((scrollHeight - scrollPosition) / scrollHeight === 0) {
        // code to run when scroll to bottom of the page
    }
});

这是github上的代码。

虽然这个问题在6年前就被问到了，但在UX设计中仍然是一个热门话题，如果有新手想用的话，这里有一个演示片段

$(function() { /* this is only for demonstration purpose */ var t = $('.posts').html(), c = 1, scroll_enabled = true; function load_ajax() { /* call ajax here... on success enable scroll */ $('.posts').append('<h4>' + (++c) + ' </h4>' + t); /*again enable loading on scroll... */ scroll_enabled = true; } $(window).bind('scroll', function() { if (scroll_enabled) { /* if 90% scrolled */ if($(window).scrollTop() >= ($('.posts').offset().top + $('.posts').outerHeight()-window.innerHeight)*0.9) { /* load ajax content */ scroll_enabled = false; load_ajax(); } } }); }); h4 { color: red; font-size: 36px; background-color: yellow; } <script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/1.12.4/jquery.min.js"></script> <div class="posts"> Lorem ipsum dolor sit amet Consectetuer augue nibh lacus at <br> Pretium Donec felis dolor penatibus <br> Phasellus consequat Vivamus dui lacinia <br> Ornare nonummy laoreet lacus Donec <br> Ut ut libero Curabitur id <br> Dui pretium hendrerit sapien Pellentesque <br> Lorem ipsum dolor sit amet <br> Consectetuer augue nibh lacus at <br> Pretium Donec felis dolor penatibus <br> Phasellus consequat Vivamus dui lacinia <br> Ornare nonummy laoreet lacus Donec <br> Ut ut libero Curabitur id <br> Dui pretium hendrerit sapien Pellentesque <br> Lorem ipsum dolor sit amet <br> Consectetuer augue nibh lacus at <br> Pretium Donec felis dolor penatibus <br> Phasellus consequat Vivamus dui lacinia <br> Ornare nonummy laoreet lacus Donec <br> Ut ut libero Curabitur id <br> Dui pretium hendrerit sapien Pellentesque <br> Lorem ipsum dolor sit amet <br> Consectetuer augue nibh lacus at <br> Pretium Donec felis dolor penatibus <br> Phasellus consequat Vivamus dui lacinia <br> Ornare nonummy laoreet lacus Donec <br> Ut ut libero Curabitur id <br> Dui pretium hendrerit sapien Pellentesque </div>

这是另一个版本。

The key code is function scroller() which takes input as the height of the div containing the scrolling section, using overflow:scroll. It approximates 5px from the top or 10px from the bottom as at the top or bottom. Otherwise it's too sensitive. It seems 10px is about the minimum. You'll see it adds 10 to the div height to get the bottom height. I assume 5px might work, I didn't test extensively. YMMV. scrollHeight returns the height of the inner scrolling area, not the displayed height of the div, which in this case is 400px.

<?php

$scrolling_area_height=400;
echo '
<script type="text/javascript">
          function scroller(ourheight) {
            var ourtop=document.getElementById(\'scrolling_area\').scrollTop;
            if (ourtop > (ourheight-\''.($scrolling_area_height+10).'\')) {
                alert(\'at the bottom; ourtop:\'+ourtop+\' ourheight:\'+ourheight);
            }
            if (ourtop <= (5)) {
                alert(\'Reached the top\');
            }
          }
</script>

<style type="text/css">
.scroller { 
            display:block;
            float:left;
            top:10px;
            left:10px;
            height:'.$scrolling_area_height.';
            border:1px solid red;
            width:200px;
            overflow:scroll; 
        }
</style>

$content="your content here";

<div id="scrolling_area" class="scroller">
onscroll="var ourheight=document.getElementById(\'scrolling_area\').scrollHeight;
        scroller(ourheight);"
        >'.$content.'
</div>';

?>

我精心编写了这段代码，用于检测何时滚动到元素的末尾!

let element = $('.element');

if ($(document).scrollTop() > element.offset().top + element.height()) {

     /// do something ///
}

在简单的DOM使用中，您可以检查条件

element.scrollTop + element.clientHeight == element.scrollHeight

如果是这样，那么你已经到达了终点。

不确定是否有任何帮助，但这就是我的做法。

我有一个比窗口大的索引面板，我让它滚动，直到达到这个索引。然后我把它固定好。一旦你滚动到页面顶部，这个过程就反过来了。

的问候。

<style type="text/css">
    .fixed_Bot {    
            position: fixed;     
            bottom: 24px;    
        }     
</style>

<script type="text/javascript">
    $(document).ready(function () {
        var sidebarheight = $('#index').height();
        var windowheight = $(window).height();


        $(window).scroll(function () {
            var scrollTop = $(window).scrollTop();

            if (scrollTop >= sidebarheight - windowheight){
                $('#index').addClass('fixed_Bot');
            }
            else {
                $('#index').removeClass('fixed_Bot');
            }                   
        });
    });

</script>