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js下滑加载更多

js下滑加载更多

作者: 左木北鱼 | 来源:发表于2018-12-06 18:44 被阅读0次

    示例代码:查看代码 查看运行

    <!DOCTYPE html>
    <html lang="en">
    <head>
      <meta charset="UTF-8">
      <meta name="viewport" content="width=device-width, initial-scale=1.0">
      <meta http-equiv="X-UA-Compatible" content="ie=edge">
      <title>Load more</title>
    </head>
    <body>
      <ul id="list">
      </ul>
      <script type="text/javascript" src="./jquery.min.js"></script>
      <script>
        $(document).ready(function () {
          let html = ``;
          for (let i = 0; i < 30; i++) {
            html += `<li>${i}</li>`;
          }
          $("#list").html(html);
        });
        window.addEventListener('scroll', () => {
          let clientHeight = document.documentElement.clientHeight || window.innerHeight; // 可视区域高度
          let scrollHeight = window.pageYOffset || document.documentElement.scrollTop || document.body.scrollTop; // 滚动高度
          let offsetHeight = document.body.offsetHeight || document.documentElement.offsetHeight; // 文档高度
          console.log(clientHeight, scrollHeight, offsetHeight);
          let sw = true;
          if ((clientHeight + scrollHeight) >= (offsetHeight - 100)) {
            if (sw) {
              sw = false;
              let length = $("#list li").length;
              let html = '';
              for (let i = length; i < length + 10; i++) {
                html += `<li>${i}</li>`;
              }
              $("#list").append(html);
              sw = true;
            }
          }
        })
      </script>
      <style>
        ul {
          list-style-type: none;
        }
        ul li {
          float: left;
          display: inline;
          width: 100%;
          height: 40px;
        }
        ul li:nth-of-type(odd) {
          background: darkgray;
        }
        ul li:nth-of-type(even) {
          background: darkcyan;
        }
      </style>
    </body>
    </html>
    
    image.png

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        本文标题:js下滑加载更多

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