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jQuery menu select all, invert selection, cancel instance analysis

小云云Original: 2017-12-29 13:36:481484browse

Regarding the functions of selecting all, inverting selection, and canceling in jQuery menu, the functions of selecting all, inverting selection, and canceling are very common. In this article, the editor will bring you an example of jQuery menu (selecting all, inverting selection, canceling). The editor thinks it’s pretty good, so I’ll share it with you now and give it as a reference. Let’s follow the editor to take a look, I hope it can help everyone.

No more nonsense, let’s go directly to the code

<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <title>Document</title>
</head>
<body>
  <input type="button" value="全选" onclick="checkAll()">
  <input type="button" value="反选" onclick="reverseAll()">
  <input type="button" value="取消" onclick="cancleAll()">
  <table border="1">
    <thead>
      <tr>
        <th>选择</th>
        <th>IP</th>
        <th>端口</th>
      </tr>
    </thead>
    <tbody>
      <tr>
        <td><input type="checkbox"></td>
        <td>1.1.1.1</td>
        <td>80</td>
      </tr>
      <tr>
        <td><input type="checkbox"></td>
        <td>1.1.1.1</td>
        <td>80</td>
      </tr>
      <tr>
        <td><input type="checkbox"></td>
        <td>1.1.1.1</td>
        <td>80</td>
      </tr>
      <tr>
        <td><input type="checkbox"></td>
        <td>1.1.1.1</td>
        <td>80</td>
      </tr>
      <tr>
        <td><input type="checkbox"></td>
        <td>1.1.1.1</td>
        <td>80</td>
      </tr>
    </tbody>

  </table>
  <script type="text/javascript" src=&#39;jquery-3.2.1.js&#39;></script>
  <script type="text/javascript">
    function checkAll(){
      $(':checkbox').prop('checked',true);
    }
    function cancleAll() {
      $(':checkbox').prop('checked',false);
    }
    function reverseAll(){
      $(':checkbox').each(function(){
        var v = $(this).prop('checked')? false:true;  /*三元运算： var v = 条件? 真值:假值*/
        $(this).prop('checked',v)
      })
    }
  </script>
</body>
</html>

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