Question

我得到了offsetwidth未定义，尽管添加了活动类，并且在我的js函数之上定义了我的jquery。我必须使用旋转木马来完成我的工作，我尝试了一个模拟练习。我的第一个活动图像正在显示，在我单击下一步后，我在控制台中收到此错误，图像没有滑动。

  <!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
  <meta charset="utf-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.2/css/bootstrap.min.css">

  <title>mycooking</title>

</head>
<body>
  <!--indicatiors-->
  <div class="container">
    <div class="row-fluid">
      <div id="myCarousel" class="carousel slide" data-ride="carousel">
        <ol class="carousel-indicators">
          <li data-target="#myCarousel" data-slide-to="0" class="active"></li>
          <li data-target="#myCarousel" data-slide-to="1"></li>
          <li data-target="#myCarousel" data-slide-to="2"></li>
        </ol>
        <!--wrapper for slides-->
        <div class="carousel-inner" role="listbox">
          <div class="item-active">
            <img class="first-slide" src="/img/dosa.jpg" alt="dosa" />
          </div>
          <div class="item">
            <img class="second-slide" src="/img/idli.jpg" alt="idli" />
          </div>
          <div class="item">
            <img class="third-slide" src="img/vada.jpg" alt="vada" />
          </div>
        </div>
        <!--Left and right controls-->
        <a class="left carousel-control" href="#myCarousel" role="button" data-slide="prev">
          <span class="glyphicon glyphicon-chevron-left" aria-hidden="true"></span>
          <span class="sr-only">Previous</span>
        </a>
        <a class="right carousel-control" href="#myCarousel" role="button" data-slide="next">
          <span class="glyphicon glyphicon-chevron-right" aria-hidden="true"></span>
            <span class="sr-only">Next</span>
        </a>
      </div>
    </div>
  </div>

  <script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.2/jquery.min.js" type="text/javascript"></script>
  <script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.4/js/bootstrap.min.js"></script>

  <script type="text/javascript">
    jQuery(document).ready(function () {
      $("#myCarousel").carousel({
          interval: 1200
      })
    });
  </script>
</body>
</html>

Answer 1

在HTML中更改此行：

body {
    height: 2000px;
}

.menu {
    position: fixed;
    background: blue;
    width: 100%;
}

.menu-item {
    display: inline-block;
    padding: 30px;
}

    .menu-item_sub {
        position: fixed;
        left: 0;
        top: 60px;
    }

到

<div class="item-active">

那个连字符不应该存在。如果您需要<div class="item active">课程，请在这两个课程之后添加，例如item-active。 <div class="item active item-active">和item是bootstrap用于运行轮播的类。如果没有第一张幻灯片，你就会收到错误。

HTH， -Ted

获取未定义引导程序的'无法读取属性'offsetwidth'

1 个答案: