requestAnimationFrame实现进度条效果

最新推荐文章于 2025-02-25 16:38:21 发布

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最新推荐文章于 2025-02-25 16:38:21 发布

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文章标签： css html 前端

本文链接：https://blog.youkuaiyun.com/m0_46219714/article/details/133020640

版权

<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>Document</title>
    <style>
      * {
        margin: 0;
        padding: 0;
      }
      #test {
        width: 0;
        height: 12px;
        border-radius: 12px;
        line-height: 12px;
        background-color: pink;
        margin: 10px;
        cursor: pointer;
      }
    </style>
  </head>
  <body>
    <div id="test">0%</div>
    <script>
      const test = document.querySelector("#test");
      test.addEventListener("click", function () {
        test.style.padding = 8 + "px";
        let timer = requestAnimationFrame(function fn() {
          if (parseInt(test.style.width || 0) < 300) {
            test.style.width = parseInt(test.style.width || 0) + 3 + "px";
            test.innerHTML = parseInt(test.style.width || 0) / 3 + "%";
            timer = requestAnimationFrame(fn);
          } else {
            cancelAnimationFrame(timer);
          }
        });
      });
    </script>
  </body>
</html>