如何确定div是否滚动到底?

8 回复 | 直到 16 年前

1

127

SomeKittens 10 年前

scrollTop == scrollHeight .

scrollTop 指滚动位置的顶部,即 scrollHeight - offsetHeight

if( obj.scrollTop === (obj.scrollHeight - obj.offsetHeight))
{
}

2

37

Spencer 9 年前

el.scrollHeight - el.scrollTop - el.clientHeight < 1

3

15

Matthew Layton 8 年前

为了适应所有可能的情况,您需要将计算出的滚动位置四舍五入:

Math.ceil(element.scrollHeight - element.scrollTop) === element.clientHeight

4

10

Emmanuel Osimosu 10 年前

如果元素位于滚动的末尾,则返回true,否则返回false。

element.scrollHeight - element.scrollTop === element.clientHeight

Mozilla Developer Network

5

1

Arthur A. Kennedy 4 年前

function difference(first,sec){
  return Math.abs(first-sec);
}

document.getElementById("myDIV").addEventListener("scroll", function() {
  var diff = difference((this.scrollTop+this.clientHeight),(this.scrollHeight));
   
   if(diff < 5) {
      alert('Scroll Ends Here');
    }
});

<!DOCTYPE html>
<html>
<head>
<style>
#myDIV {
  height: 250px;
  width: 250px;
  overflow: none;
  overflow-y: auto;
}

#content {
  height: 800px;
  width: 2000px;
  background-color: coral;
}
</style>
</head>
<body>

<p>Scroll inside the div element to display the number of pixels the content of div is scrolled horizontally and vertically.</p>

<div id="myDIV">
  <div id="content">Scroll inside me!</div>
</div>

<p id="demo"></p>

</body>
</html>

没有JQuery或Javascript库,但它运行良好。

6

0

Kamlesh Dev01 6 年前

<!DOCTYPE HTML> 
<html> 
<head> 
    <title>JQuery | Detecting when user scrolls to bottom of div. 
    </title> 
</head> 
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.4.0/jquery.min.js"></script> 

<body style="text-align:center;" id="body"> 
    <h1 style="color:green;">  
            Data Center  
        </h1> 
    <p id="data_center" style="font-size: 17px; font-weight: bold;"></p> 
    <center> 
        <div class="div" style="width:200px; height:150px; overflow:auto;"> 
            <h1>Hello Friends</h1> 
            <h1>Hello Friends</h1> 
            <h1>Hello Friends</h1> 
            <h1>Hello Friends</h1> 
            <h1>Hello Friends</h1> 
            <h1>Hello Friends</h1> 
            <h1>Hello Friends</h1> 
            <h1>Hello Friends</h1> 
            <h1>Hello Friends</h1> 
            <h1>Hello Friends</h1> 
            <h1>Hello Friends</h1> 
            <h1>Hello Friends</h1> 
            <h1>Hello Friends</h1> 
        </div> 
    </center> 
    <script> 
        $('#data_center').text('Scroll till bottom to get alert!'); 
        jQuery(function($) { 
            $('.div').on('scroll', function() { 
                if ($(this).scrollTop() + $(this).innerHeight() >=  $(this)[0].scrollHeight) {                     
                    alert('End of DIV has reached!'); 
                } 
            }); 
        }); 
    </script> 
</body> 

</html>

我希望这对我有效,这也会对你有所帮助。谢谢。

7

0

Aleks Grunwald 5 年前

if (list.scrollTop + list.clientHeight >= list.scrollHeight - 1) {
    return 'scrollOnTheBottom';
}

8

0

Gleb Sabirzyanov Himanshu Patni 5 年前

我找到的解决方案 https://www.geeksforgeeks.org/how-to-detect-when-user-scrolls-to-the-bottom-of-a-div/ 为我工作,希望它也为你工作。

$(window).on('scroll', function() { 
    if ($(window).scrollTop() >= $( 
        '.div').offset().top + $('.div'). 
        outerHeight() - window.innerHeight) { 
            alert('You reached the end of the DIV'); 
        } 
});