js implements label click switching code (code attached)-JS Tutorial-php.cn

js implements label click switching code (code attached)

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Release： 2018-04-18 10:07:32

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This time I will bring you the js code to implement label click switching (code attached). What are the precautions for js to implement label click switching code? The following is a practical case, let’s take a look.

Regarding websites, I believe many people are very aware that there are many tags in the website that will be switched every time they are clicked. So does anyone know how this effect is achieved? The following article will introduce to you how to implement label click switching in js. You can learn about the specific implementation example code in the article.

The example in this article describes the simple label click switching function implemented by JS. Share it with everyone for your reference, the details are as follows:

The specific code is as follows:

<!DOCTYPE html>
<html>
<head lang="en">
  <meta charset="UTF-8">
  <title></title>
  <style>
    * {
      margin: 0;
      padding: 0;
    }
    ul {
      list-style-type: none;
    }
    .box {
      width: 400px;
      height: 300px;
      border: 1px solid #ccc;
      margin: 100px auto;
      overflow: hidden;
    }
    .hd {
      height: 45px;
    }
    .hd span {
      display: inline-block;
      width: 90px;
      background-color: pink;
      line-height: 45px;
      text-align: center;
      cursor: pointer;
    }
    .hd span.current {
      background-color: yellowgreen;
    }
    .bd li {
      height: 255px;
      background-color: yellowgreen;
      display: none;
    }
    .bd li.current {
      display: block;
      font-size: 36px;
    }
  </style>
</head>
<body>
<p class="box" id="box">
  <p class="hd">
    <span class="current">体育</span>
    <span>娱乐</span>
    <span>新闻</span>
    <span>综合</span>
  </p>
  <p class="bd">
    <ul>
      <li class="current">我是体育模块</li>
      <li>我是娱乐模块</li>
      <li>我是新闻模块</li>
      <li>我是综合模块</li>
    </ul>
  </p>
</p>
<script>
  var box = document.getElementById("box");
  var spans = box.getElementsByTagName("span");
  var lis = box.getElementsByTagName("li");
  for (var i = 0; i < spans.length; i++) {
    spans[i].aaa = i;
    spans[i].onclick = function () {
      for (var i = 0; i < spans.length; i++) {
        spans[i].className = "";
        lis[i].className = "";
      }
      this.className = "current";
      lis[this.aaa].className = "current";
    }
  }
</script>
</body>
</html>

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I believe you have mastered the method after reading the case in this article. For more exciting information, please pay attention to other related articles on the PHP Chinese website!